/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:24:53,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:24:53,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:24:53,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:24:53,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:24:53,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:24:53,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:24:53,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:24:53,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:24:53,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:24:53,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:24:53,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:24:53,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:24:53,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:24:53,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:24:53,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:24:53,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:24:53,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:24:53,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:24:53,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:24:53,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:24:53,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:24:53,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:24:53,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:24:53,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 01:24:53,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 01:24:53,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 01:24:53,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 01:24:53,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 01:24:53,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 01:24:53,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 01:24:53,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 01:24:53,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 01:24:53,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 01:24:53,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 01:24:53,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 01:24:53,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 01:24:53,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 01:24:53,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:24:53,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:24:53,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:24:53,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 01:24:53,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:24:53,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:24:53,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:24:53,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:24:53,864 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:24:53,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:24:53,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:24:53,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:24:53,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:24:53,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:24:53,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:24:53,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:24:53,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:24:53,866 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:24:53,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:24:53,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:24:53,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:24:53,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:24:53,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:24:54,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:24:54,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:24:54,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:24:54,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:24:54,200 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:24:54,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-06 01:24:55,351 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:24:55,856 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:24:55,857 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-12-06 01:24:55,912 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c9e6508/f7c7fb4919264ce98a6d40eff73153bd/FLAG339be8898 [2022-12-06 01:24:55,925 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c9e6508/f7c7fb4919264ce98a6d40eff73153bd [2022-12-06 01:24:55,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:24:55,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:24:55,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:24:55,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:24:55,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:24:55,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:24:55" (1/1) ... [2022-12-06 01:24:55,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58eef73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:24:55, skipping insertion in model container [2022-12-06 01:24:55,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:24:55" (1/1) ... [2022-12-06 01:24:55,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:24:56,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:24:56,334 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-06 01:24:56,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:56,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:56,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:57,090 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 01:24:57,095 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:57,099 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:57,105 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:57,180 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 01:24:57,185 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 01:24:57,267 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 01:24:57,422 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 01:24:57,431 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 01:24:57,490 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 01:24:57,493 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 01:24:57,673 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 01:24:57,675 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 01:24:57,678 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 01:24:57,741 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 01:24:57,741 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 01:24:57,743 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 01:24:57,744 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 01:24:57,911 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 01:24:57,954 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 01:24:58,110 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 01:24:58,114 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 01:24:58,329 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 01:24:58,457 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 01:24:58,457 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 01:24:58,457 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 01:24:59,156 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 01:24:59,156 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,163 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,167 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,170 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,520 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-06 01:24:59,526 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-06 01:24:59,533 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-06 01:24:59,542 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-06 01:24:59,542 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-06 01:24:59,545 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-06 01:24:59,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:24:59,592 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:24:59,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-12-06 01:24:59,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 01:24:59,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 01:24:59,661 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-06 01:24:59,661 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:59,662 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:59,663 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-06 01:24:59,666 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 01:24:59,669 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-06 01:24:59,672 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-06 01:24:59,683 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 01:24:59,685 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-06 01:24:59,687 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-06 01:24:59,688 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-06 01:24:59,699 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-06 01:24:59,700 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-06 01:24:59,700 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-06 01:24:59,703 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-06 01:24:59,703 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 01:24:59,704 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-06 01:24:59,704 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-06 01:24:59,712 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-06 01:24:59,714 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-06 01:24:59,718 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-06 01:24:59,719 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-06 01:24:59,722 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-06 01:24:59,726 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-06 01:24:59,726 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-06 01:24:59,726 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-06 01:24:59,783 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-06 01:24:59,783 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,786 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,793 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,797 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-06 01:24:59,837 WARN L623 FunctionHandler]: Unknown extern function nvram_read_byte [2022-12-06 01:24:59,838 WARN L623 FunctionHandler]: Unknown extern function nvram_write_byte [2022-12-06 01:24:59,839 WARN L623 FunctionHandler]: Unknown extern function nvram_sync [2022-12-06 01:24:59,841 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-06 01:24:59,841 WARN L623 FunctionHandler]: Unknown extern function nvram_get_size [2022-12-06 01:24:59,841 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-06 01:24:59,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:25:00,339 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:25:00,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00 WrapperNode [2022-12-06 01:25:00,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:25:00,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:25:00,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:25:00,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:25:00,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,515 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 348 [2022-12-06 01:25:00,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:25:00,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:25:00,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:25:00,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:25:00,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:25:00,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:25:00,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:25:00,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:25:00,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (1/1) ... [2022-12-06 01:25:00,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:25:00,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:25:00,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 01:25:00,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 01:25:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 01:25:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 01:25:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:25:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:25:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:25:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-06 01:25:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:25:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:25:00,680 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-12-06 01:25:00,680 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-12-06 01:25:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:25:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-06 01:25:00,687 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-12-06 01:25:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-12-06 01:25:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:25:00,689 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 01:25:01,146 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:25:01,148 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:25:01,561 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:25:01,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:25:01,571 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 01:25:01,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:25:01 BoogieIcfgContainer [2022-12-06 01:25:01,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:25:01,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:25:01,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:25:01,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:25:01,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:24:55" (1/3) ... [2022-12-06 01:25:01,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397210f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:25:01, skipping insertion in model container [2022-12-06 01:25:01,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:25:00" (2/3) ... [2022-12-06 01:25:01,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397210f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:25:01, skipping insertion in model container [2022-12-06 01:25:01,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:25:01" (3/3) ... [2022-12-06 01:25:01,580 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2022-12-06 01:25:01,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:25:01,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 01:25:01,596 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:25:01,688 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 01:25:01,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 377 transitions, 770 flow [2022-12-06 01:25:01,879 INFO L130 PetriNetUnfolder]: 15/375 cut-off events. [2022-12-06 01:25:01,880 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 01:25:01,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 375 events. 15/375 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 493 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-06 01:25:01,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 377 transitions, 770 flow [2022-12-06 01:25:01,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 367 transitions, 743 flow [2022-12-06 01:25:01,896 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:25:01,924 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 367 transitions, 743 flow [2022-12-06 01:25:01,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 367 transitions, 743 flow [2022-12-06 01:25:02,029 INFO L130 PetriNetUnfolder]: 15/367 cut-off events. [2022-12-06 01:25:02,029 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:25:02,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 367 events. 15/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 437 event pairs, 0 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 274. Up to 4 conditions per place. [2022-12-06 01:25:02,046 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 367 transitions, 743 flow [2022-12-06 01:25:02,046 INFO L188 LiptonReduction]: Number of co-enabled transitions 17934 [2022-12-06 01:25:02,249 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:02,250 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:02,252 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:02,253 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:02,296 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:02,297 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:02,299 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:02,300 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:03,548 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:03,549 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:03,551 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:03,552 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:03,826 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:03,827 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:04,023 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,024 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:04,523 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,524 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:04,525 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,526 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:04,692 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,693 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-06 01:25:04,697 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,697 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-06 01:25:04,699 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:04,700 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:05,080 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:05,080 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:05,082 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:05,083 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:07,477 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:07,477 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:07,967 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:07,968 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:08,082 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:08,082 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:08,352 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:08,352 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-06 01:25:08,355 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:08,356 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2022-12-06 01:25:08,357 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:08,357 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2022-12-06 01:25:08,359 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:08,360 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:11,634 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:11,635 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:11,636 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:11,637 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:12,158 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:12,159 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:12,162 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:12,163 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:13,001 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:13,001 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-06 01:25:13,004 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:13,005 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-06 01:25:13,013 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:13,014 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-06 01:25:13,026 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:13,027 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-06 01:25:13,030 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:13,030 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2022-12-06 01:25:25,028 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:25,029 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:25,031 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:25,031 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:48,718 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:48,719 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2022-12-06 01:25:48,721 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:48,722 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2022-12-06 01:25:48,725 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:48,726 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2022-12-06 01:25:48,728 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:48,735 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-12-06 01:25:48,738 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:48,739 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2022-12-06 01:25:53,749 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:53,751 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:25:53,752 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:25:53,753 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:26:12,274 WARN L233 SmtUtils]: Spent 17.50s on a formula simplification that was a NOOP. DAG size: 472 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:26:27,780 WARN L233 SmtUtils]: Spent 15.50s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:26:41,678 WARN L233 SmtUtils]: Spent 13.89s on a formula simplification that was a NOOP. DAG size: 472 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:26:54,137 WARN L233 SmtUtils]: Spent 12.45s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:26:55,070 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:26:55,070 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:26:55,074 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:26:55,078 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:26:55,083 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:26:55,085 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:26:55,087 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 01:26:55,088 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 01:28:37,100 WARN L233 SmtUtils]: Spent 1.70m on a formula simplification. DAG size of input: 522 DAG size of output: 515 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:29:22,549 WARN L233 SmtUtils]: Spent 45.44s on a formula simplification that was a NOOP. DAG size: 501 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:30:21,668 WARN L233 SmtUtils]: Spent 59.12s on a formula simplification. DAG size of input: 534 DAG size of output: 525 (called from [L 287] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:31:08,406 WARN L233 SmtUtils]: Spent 46.73s on a formula simplification that was a NOOP. DAG size: 510 (called from [L 310] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-06 01:31:08,415 INFO L203 LiptonReduction]: Total number of compositions: 346 [2022-12-06 01:31:08,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:31:08,432 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@2e384e29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:31:08,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 01:31:08,441 INFO L130 PetriNetUnfolder]: 6/29 cut-off events. [2022-12-06 01:31:08,441 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:31:08,441 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:08,442 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 01:31:08,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:08,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:08,446 INFO L85 PathProgramCache]: Analyzing trace with hash 304517835, now seen corresponding path program 1 times [2022-12-06 01:31:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:08,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744746700] [2022-12-06 01:31:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:08,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:09,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:09,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744746700] [2022-12-06 01:31:09,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744746700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:09,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:09,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:31:09,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707129259] [2022-12-06 01:31:09,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:09,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:31:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:31:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:31:09,534 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 39 [2022-12-06 01:31:09,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:09,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:09,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 39 [2022-12-06 01:31:09,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:10,044 INFO L130 PetriNetUnfolder]: 728/1156 cut-off events. [2022-12-06 01:31:10,044 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-12-06 01:31:10,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 1156 events. 728/1156 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5007 event pairs, 367 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 2105. Up to 867 conditions per place. [2022-12-06 01:31:10,049 INFO L137 encePairwiseOnDemand]: 32/39 looper letters, 44 selfloop transitions, 4 changer transitions 10/59 dead transitions. [2022-12-06 01:31:10,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 249 flow [2022-12-06 01:31:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:31:10,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:31:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2022-12-06 01:31:10,059 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-06 01:31:10,062 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-06 01:31:10,063 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:10,063 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 59 transitions, 249 flow [2022-12-06 01:31:10,071 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 59 transitions, 249 flow [2022-12-06 01:31:10,071 INFO L188 LiptonReduction]: Number of co-enabled transitions 72 [2022-12-06 01:31:10,073 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:10,074 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 01:31:10,074 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 59 transitions, 249 flow [2022-12-06 01:31:10,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:10,074 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:10,075 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:10,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:31:10,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash 850121091, now seen corresponding path program 1 times [2022-12-06 01:31:10,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:10,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388848986] [2022-12-06 01:31:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:10,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:10,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:10,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388848986] [2022-12-06 01:31:10,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388848986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:10,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:10,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 01:31:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281086646] [2022-12-06 01:31:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:10,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 01:31:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 01:31:10,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 01:31:10,775 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:10,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 59 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:10,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:10,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:10,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:11,380 INFO L130 PetriNetUnfolder]: 771/1267 cut-off events. [2022-12-06 01:31:11,380 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-06 01:31:11,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3775 conditions, 1267 events. 771/1267 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6539 event pairs, 56 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 3293. Up to 951 conditions per place. [2022-12-06 01:31:11,385 INFO L137 encePairwiseOnDemand]: 27/37 looper letters, 48 selfloop transitions, 10 changer transitions 36/95 dead transitions. [2022-12-06 01:31:11,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 95 transitions, 590 flow [2022-12-06 01:31:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 01:31:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 01:31:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2022-12-06 01:31:11,388 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44324324324324327 [2022-12-06 01:31:11,389 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2022-12-06 01:31:11,389 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:11,389 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 95 transitions, 590 flow [2022-12-06 01:31:11,396 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 95 transitions, 590 flow [2022-12-06 01:31:11,396 INFO L188 LiptonReduction]: Number of co-enabled transitions 100 [2022-12-06 01:31:11,399 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:11,400 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11 [2022-12-06 01:31:11,401 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 95 transitions, 590 flow [2022-12-06 01:31:11,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:11,401 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:11,401 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:11,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:31:11,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash -579929923, now seen corresponding path program 1 times [2022-12-06 01:31:11,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:11,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109920874] [2022-12-06 01:31:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:11,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:11,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:11,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109920874] [2022-12-06 01:31:11,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109920874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:11,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:11,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 01:31:11,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062908362] [2022-12-06 01:31:11,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:11,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:31:11,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:11,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:31:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:31:11,842 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:11,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 95 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:11,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:11,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:11,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:12,310 INFO L130 PetriNetUnfolder]: 771/1307 cut-off events. [2022-12-06 01:31:12,310 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-12-06 01:31:12,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5159 conditions, 1307 events. 771/1307 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6877 event pairs, 58 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 4484. Up to 998 conditions per place. [2022-12-06 01:31:12,314 INFO L137 encePairwiseOnDemand]: 32/37 looper letters, 42 selfloop transitions, 5 changer transitions 68/116 dead transitions. [2022-12-06 01:31:12,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 116 transitions, 952 flow [2022-12-06 01:31:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:31:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:31:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2022-12-06 01:31:12,315 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2022-12-06 01:31:12,315 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2022-12-06 01:31:12,316 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:12,316 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 116 transitions, 952 flow [2022-12-06 01:31:12,322 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 116 transitions, 952 flow [2022-12-06 01:31:12,323 INFO L188 LiptonReduction]: Number of co-enabled transitions 106 [2022-12-06 01:31:12,323 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:12,324 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-06 01:31:12,324 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 116 transitions, 952 flow [2022-12-06 01:31:12,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:12,324 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:12,324 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:12,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 01:31:12,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:12,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:12,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1941252809, now seen corresponding path program 1 times [2022-12-06 01:31:12,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:12,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354206529] [2022-12-06 01:31:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:12,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:13,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354206529] [2022-12-06 01:31:13,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354206529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:13,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:13,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015602314] [2022-12-06 01:31:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:13,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:13,487 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:13,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 116 transitions, 952 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:13,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:13,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:13,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:14,877 INFO L130 PetriNetUnfolder]: 1486/2516 cut-off events. [2022-12-06 01:31:14,878 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2022-12-06 01:31:14,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12472 conditions, 2516 events. 1486/2516 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14289 event pairs, 10 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 10758. Up to 1938 conditions per place. [2022-12-06 01:31:14,885 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 53 selfloop transitions, 32 changer transitions 176/262 dead transitions. [2022-12-06 01:31:14,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 262 transitions, 2678 flow [2022-12-06 01:31:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 01:31:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 01:31:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2022-12-06 01:31:14,889 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46756756756756757 [2022-12-06 01:31:14,891 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2022-12-06 01:31:14,891 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:14,892 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 262 transitions, 2678 flow [2022-12-06 01:31:14,910 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 262 transitions, 2678 flow [2022-12-06 01:31:14,910 INFO L188 LiptonReduction]: Number of co-enabled transitions 218 [2022-12-06 01:31:14,912 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:14,914 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-06 01:31:14,914 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 262 transitions, 2678 flow [2022-12-06 01:31:14,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:14,914 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:14,915 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:14,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 01:31:14,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 205039006, now seen corresponding path program 1 times [2022-12-06 01:31:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16504174] [2022-12-06 01:31:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:16,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:16,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16504174] [2022-12-06 01:31:16,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16504174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:16,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:16,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:16,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63258241] [2022-12-06 01:31:16,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:16,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 01:31:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:16,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 01:31:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 01:31:16,325 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:16,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 262 transitions, 2678 flow. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:16,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:16,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:16,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:17,943 INFO L130 PetriNetUnfolder]: 2259/3851 cut-off events. [2022-12-06 01:31:17,944 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2022-12-06 01:31:17,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22718 conditions, 3851 events. 2259/3851 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 24352 event pairs, 10 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 19528. Up to 2930 conditions per place. [2022-12-06 01:31:17,957 INFO L137 encePairwiseOnDemand]: 15/37 looper letters, 76 selfloop transitions, 43 changer transitions 270/390 dead transitions. [2022-12-06 01:31:17,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 390 transitions, 4769 flow [2022-12-06 01:31:17,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 01:31:17,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 01:31:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 169 transitions. [2022-12-06 01:31:17,960 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4152334152334152 [2022-12-06 01:31:17,962 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 25 predicate places. [2022-12-06 01:31:17,962 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:17,963 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 390 transitions, 4769 flow [2022-12-06 01:31:17,994 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 390 transitions, 4769 flow [2022-12-06 01:31:17,994 INFO L188 LiptonReduction]: Number of co-enabled transitions 336 [2022-12-06 01:31:17,995 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:17,996 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-06 01:31:17,996 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 390 transitions, 4769 flow [2022-12-06 01:31:17,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:17,997 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:17,997 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:17,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 01:31:17,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash -471514604, now seen corresponding path program 2 times [2022-12-06 01:31:17,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308542135] [2022-12-06 01:31:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:17,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:18,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:18,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308542135] [2022-12-06 01:31:18,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308542135] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:18,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:18,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967820985] [2022-12-06 01:31:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:18,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:18,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:18,941 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:18,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 390 transitions, 4769 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:18,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:18,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:18,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:20,919 INFO L130 PetriNetUnfolder]: 3431/6049 cut-off events. [2022-12-06 01:31:20,919 INFO L131 PetriNetUnfolder]: For 417/417 co-relation queries the response was YES. [2022-12-06 01:31:20,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41373 conditions, 6049 events. 3431/6049 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 43875 event pairs, 20 based on Foata normal form. 0/3223 useless extension candidates. Maximal degree in co-relation 36799. Up to 4439 conditions per place. [2022-12-06 01:31:20,939 INFO L137 encePairwiseOnDemand]: 16/37 looper letters, 124 selfloop transitions, 48 changer transitions 416/589 dead transitions. [2022-12-06 01:31:20,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 589 transitions, 8384 flow [2022-12-06 01:31:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 01:31:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 01:31:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 182 transitions. [2022-12-06 01:31:20,940 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44717444717444715 [2022-12-06 01:31:20,941 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2022-12-06 01:31:20,941 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:20,942 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 589 transitions, 8384 flow [2022-12-06 01:31:20,982 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 589 transitions, 8384 flow [2022-12-06 01:31:20,982 INFO L188 LiptonReduction]: Number of co-enabled transitions 526 [2022-12-06 01:31:20,985 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:20,985 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 44 [2022-12-06 01:31:20,985 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 589 transitions, 8384 flow [2022-12-06 01:31:20,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:20,986 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:20,986 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:20,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 01:31:20,986 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash -376779224, now seen corresponding path program 3 times [2022-12-06 01:31:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:20,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633900519] [2022-12-06 01:31:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:21,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:21,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633900519] [2022-12-06 01:31:21,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633900519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:21,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:21,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:21,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187044452] [2022-12-06 01:31:21,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:21,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:21,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:21,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:21,871 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:21,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 589 transitions, 8384 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:21,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:21,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:21,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:23,625 INFO L130 PetriNetUnfolder]: 3569/6333 cut-off events. [2022-12-06 01:31:23,625 INFO L131 PetriNetUnfolder]: For 441/441 co-relation queries the response was YES. [2022-12-06 01:31:23,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49379 conditions, 6333 events. 3569/6333 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 46695 event pairs, 20 based on Foata normal form. 0/3415 useless extension candidates. Maximal degree in co-relation 42548. Up to 4539 conditions per place. [2022-12-06 01:31:23,645 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 133 selfloop transitions, 43 changer transitions 449/626 dead transitions. [2022-12-06 01:31:23,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 626 transitions, 10164 flow [2022-12-06 01:31:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 01:31:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 01:31:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 181 transitions. [2022-12-06 01:31:23,647 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44471744471744473 [2022-12-06 01:31:23,648 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 45 predicate places. [2022-12-06 01:31:23,649 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:23,649 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 626 transitions, 10164 flow [2022-12-06 01:31:23,689 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 626 transitions, 10164 flow [2022-12-06 01:31:23,690 INFO L188 LiptonReduction]: Number of co-enabled transitions 558 [2022-12-06 01:31:23,693 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:23,693 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 45 [2022-12-06 01:31:23,693 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 626 transitions, 10164 flow [2022-12-06 01:31:23,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:23,694 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:23,694 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:23,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 01:31:23,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:23,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2009400226, now seen corresponding path program 4 times [2022-12-06 01:31:23,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:23,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708748711] [2022-12-06 01:31:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:23,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:25,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:25,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708748711] [2022-12-06 01:31:25,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708748711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:25,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:25,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:31:25,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371140237] [2022-12-06 01:31:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:25,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 01:31:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 01:31:25,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-06 01:31:25,875 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:25,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 626 transitions, 10164 flow. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:25,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:25,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:25,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:27,900 INFO L130 PetriNetUnfolder]: 4025/7092 cut-off events. [2022-12-06 01:31:27,900 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2022-12-06 01:31:27,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62214 conditions, 7092 events. 4025/7092 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 52906 event pairs, 20 based on Foata normal form. 0/3798 useless extension candidates. Maximal degree in co-relation 53032. Up to 5108 conditions per place. [2022-12-06 01:31:27,922 INFO L137 encePairwiseOnDemand]: 16/37 looper letters, 124 selfloop transitions, 72 changer transitions 507/704 dead transitions. [2022-12-06 01:31:27,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 704 transitions, 12839 flow [2022-12-06 01:31:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 01:31:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 01:31:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 168 transitions. [2022-12-06 01:31:27,923 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.41277641277641275 [2022-12-06 01:31:27,924 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 55 predicate places. [2022-12-06 01:31:27,924 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:27,925 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 704 transitions, 12839 flow [2022-12-06 01:31:27,987 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 704 transitions, 12839 flow [2022-12-06 01:31:27,987 INFO L188 LiptonReduction]: Number of co-enabled transitions 632 [2022-12-06 01:31:27,991 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:27,993 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 69 [2022-12-06 01:31:27,993 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 704 transitions, 12839 flow [2022-12-06 01:31:27,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:27,993 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:27,993 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:27,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 01:31:27,994 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:27,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1566368951, now seen corresponding path program 2 times [2022-12-06 01:31:27,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:27,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353286951] [2022-12-06 01:31:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:27,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:29,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353286951] [2022-12-06 01:31:29,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353286951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:29,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:29,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:31:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506574708] [2022-12-06 01:31:29,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:29,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 01:31:29,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 01:31:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-06 01:31:29,306 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:29,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 704 transitions, 12839 flow. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:29,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:29,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:29,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:31,177 INFO L130 PetriNetUnfolder]: 4240/7547 cut-off events. [2022-12-06 01:31:31,177 INFO L131 PetriNetUnfolder]: For 570/570 co-relation queries the response was YES. [2022-12-06 01:31:31,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73449 conditions, 7547 events. 4240/7547 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 57616 event pairs, 20 based on Foata normal form. 0/4115 useless extension candidates. Maximal degree in co-relation 62104. Up to 5373 conditions per place. [2022-12-06 01:31:31,197 INFO L137 encePairwiseOnDemand]: 20/37 looper letters, 166 selfloop transitions, 35 changer transitions 561/763 dead transitions. [2022-12-06 01:31:31,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 763 transitions, 15446 flow [2022-12-06 01:31:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 01:31:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 01:31:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 107 transitions. [2022-12-06 01:31:31,199 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.41312741312741313 [2022-12-06 01:31:31,200 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 61 predicate places. [2022-12-06 01:31:31,200 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:31,200 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 763 transitions, 15446 flow [2022-12-06 01:31:31,256 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 763 transitions, 15446 flow [2022-12-06 01:31:31,257 INFO L188 LiptonReduction]: Number of co-enabled transitions 700 [2022-12-06 01:31:31,260 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:31,261 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 61 [2022-12-06 01:31:31,261 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 763 transitions, 15446 flow [2022-12-06 01:31:31,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:31,261 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:31,261 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:31,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 01:31:31,261 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash 483879244, now seen corresponding path program 5 times [2022-12-06 01:31:31,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:31,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319591682] [2022-12-06 01:31:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:31,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:32,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:32,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319591682] [2022-12-06 01:31:32,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319591682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:32,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:32,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:32,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203678952] [2022-12-06 01:31:32,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:32,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:32,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:32,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:32,128 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:32,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 763 transitions, 15446 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:32,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:32,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:32,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:34,273 INFO L130 PetriNetUnfolder]: 4485/8008 cut-off events. [2022-12-06 01:31:34,274 INFO L131 PetriNetUnfolder]: For 599/599 co-relation queries the response was YES. [2022-12-06 01:31:34,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85545 conditions, 8008 events. 4485/8008 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 62120 event pairs, 20 based on Foata normal form. 0/4384 useless extension candidates. Maximal degree in co-relation 72908. Up to 5628 conditions per place. [2022-12-06 01:31:34,299 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 160 selfloop transitions, 50 changer transitions 604/815 dead transitions. [2022-12-06 01:31:34,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 815 transitions, 18129 flow [2022-12-06 01:31:34,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 01:31:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 01:31:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2022-12-06 01:31:34,301 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4810810810810811 [2022-12-06 01:31:34,302 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 70 predicate places. [2022-12-06 01:31:34,302 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:34,302 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 815 transitions, 18129 flow [2022-12-06 01:31:34,362 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 815 transitions, 18129 flow [2022-12-06 01:31:34,362 INFO L188 LiptonReduction]: Number of co-enabled transitions 746 [2022-12-06 01:31:34,365 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:34,366 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 64 [2022-12-06 01:31:34,366 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 815 transitions, 18129 flow [2022-12-06 01:31:34,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:34,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:34,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:34,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 01:31:34,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:34,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash 389143864, now seen corresponding path program 6 times [2022-12-06 01:31:34,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:34,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243165924] [2022-12-06 01:31:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:35,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:35,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243165924] [2022-12-06 01:31:35,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243165924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:35,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:35,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:35,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940311111] [2022-12-06 01:31:35,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:35,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:35,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:35,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:35,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:35,212 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:35,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 815 transitions, 18129 flow. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:35,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:35,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:35,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:37,517 INFO L130 PetriNetUnfolder]: 4657/8384 cut-off events. [2022-12-06 01:31:37,518 INFO L131 PetriNetUnfolder]: For 642/642 co-relation queries the response was YES. [2022-12-06 01:31:37,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97513 conditions, 8384 events. 4657/8384 cut-off events. For 642/642 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 66203 event pairs, 20 based on Foata normal form. 0/4638 useless extension candidates. Maximal degree in co-relation 83738. Up to 5788 conditions per place. [2022-12-06 01:31:37,542 INFO L137 encePairwiseOnDemand]: 16/37 looper letters, 165 selfloop transitions, 49 changer transitions 654/869 dead transitions. [2022-12-06 01:31:37,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 869 transitions, 21074 flow [2022-12-06 01:31:37,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 01:31:37,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 01:31:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2022-12-06 01:31:37,544 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4837837837837838 [2022-12-06 01:31:37,545 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2022-12-06 01:31:37,545 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:37,545 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 869 transitions, 21074 flow [2022-12-06 01:31:37,605 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 869 transitions, 21074 flow [2022-12-06 01:31:37,605 INFO L188 LiptonReduction]: Number of co-enabled transitions 796 [2022-12-06 01:31:37,610 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:37,610 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 65 [2022-12-06 01:31:37,610 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 869 transitions, 21074 flow [2022-12-06 01:31:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:37,610 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:37,611 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:37,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 01:31:37,611 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:37,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1099656118, now seen corresponding path program 1 times [2022-12-06 01:31:37,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:37,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645557100] [2022-12-06 01:31:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:37,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:38,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:38,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645557100] [2022-12-06 01:31:38,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645557100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:38,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:38,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:38,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931839225] [2022-12-06 01:31:38,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:38,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 01:31:38,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:38,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 01:31:38,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 01:31:38,486 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:38,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 869 transitions, 21074 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:38,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:38,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:38,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:41,416 INFO L130 PetriNetUnfolder]: 5923/11092 cut-off events. [2022-12-06 01:31:41,417 INFO L131 PetriNetUnfolder]: For 1039/1039 co-relation queries the response was YES. [2022-12-06 01:31:41,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139150 conditions, 11092 events. 5923/11092 cut-off events. For 1039/1039 co-relation queries the response was YES. Maximal size of possible extension queue 941. Compared 95530 event pairs, 40 based on Foata normal form. 0/6484 useless extension candidates. Maximal degree in co-relation 115082. Up to 7401 conditions per place. [2022-12-06 01:31:41,450 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 203 selfloop transitions, 75 changer transitions 983/1262 dead transitions. [2022-12-06 01:31:41,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 1262 transitions, 33187 flow [2022-12-06 01:31:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 01:31:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 01:31:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2022-12-06 01:31:41,451 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.43843843843843844 [2022-12-06 01:31:41,452 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 87 predicate places. [2022-12-06 01:31:41,452 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:41,452 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 1262 transitions, 33187 flow [2022-12-06 01:31:41,556 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 1262 transitions, 33187 flow [2022-12-06 01:31:41,557 INFO L188 LiptonReduction]: Number of co-enabled transitions 1228 [2022-12-06 01:31:41,564 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:41,564 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 112 [2022-12-06 01:31:41,565 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 1262 transitions, 33187 flow [2022-12-06 01:31:41,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:41,565 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:41,565 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:41,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 01:31:41,565 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1300012105, now seen corresponding path program 1 times [2022-12-06 01:31:41,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:41,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466029551] [2022-12-06 01:31:41,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:41,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466029551] [2022-12-06 01:31:42,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466029551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:42,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:42,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:31:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042418503] [2022-12-06 01:31:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:42,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:31:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:42,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:31:42,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:31:42,240 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:42,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 1262 transitions, 33187 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:42,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:42,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:42,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:46,351 INFO L130 PetriNetUnfolder]: 6692/12802 cut-off events. [2022-12-06 01:31:46,352 INFO L131 PetriNetUnfolder]: For 1300/1300 co-relation queries the response was YES. [2022-12-06 01:31:46,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173761 conditions, 12802 events. 6692/12802 cut-off events. For 1300/1300 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 115612 event pairs, 60 based on Foata normal form. 0/7510 useless extension candidates. Maximal degree in co-relation 142361. Up to 8933 conditions per place. [2022-12-06 01:31:46,384 INFO L137 encePairwiseOnDemand]: 13/37 looper letters, 234 selfloop transitions, 76 changer transitions 1487/1798 dead transitions. [2022-12-06 01:31:46,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 1798 transitions, 50906 flow [2022-12-06 01:31:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 01:31:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 01:31:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 237 transitions. [2022-12-06 01:31:46,386 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.42702702702702705 [2022-12-06 01:31:46,386 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 101 predicate places. [2022-12-06 01:31:46,387 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:46,387 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 1798 transitions, 50906 flow [2022-12-06 01:31:46,553 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 1798 transitions, 50906 flow [2022-12-06 01:31:46,553 INFO L188 LiptonReduction]: Number of co-enabled transitions 1430 [2022-12-06 01:31:46,559 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:46,560 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 174 [2022-12-06 01:31:46,560 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 1798 transitions, 50906 flow [2022-12-06 01:31:46,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:46,560 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:46,560 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:46,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 01:31:46,560 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:46,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2131181986, now seen corresponding path program 1 times [2022-12-06 01:31:46,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:46,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879460855] [2022-12-06 01:31:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:47,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:47,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879460855] [2022-12-06 01:31:47,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879460855] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:31:47,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444893851] [2022-12-06 01:31:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:47,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:31:47,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:31:47,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:31:47,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 01:31:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:47,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-06 01:31:47,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 01:31:48,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 01:31:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:48,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 01:31:48,323 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-06 01:31:48,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-06 01:31:48,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-12-06 01:31:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:48,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444893851] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 01:31:48,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 01:31:48,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-12-06 01:31:48,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424257319] [2022-12-06 01:31:48,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 01:31:48,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 01:31:48,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:48,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 01:31:48,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-12-06 01:31:48,369 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:48,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 1798 transitions, 50906 flow. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:48,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:48,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:48,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:31:55,721 INFO L130 PetriNetUnfolder]: 7629/14533 cut-off events. [2022-12-06 01:31:55,721 INFO L131 PetriNetUnfolder]: For 1457/1457 co-relation queries the response was YES. [2022-12-06 01:31:55,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210825 conditions, 14533 events. 7629/14533 cut-off events. For 1457/1457 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 133701 event pairs, 80 based on Foata normal form. 0/8487 useless extension candidates. Maximal degree in co-relation 171889. Up to 10504 conditions per place. [2022-12-06 01:31:55,762 INFO L137 encePairwiseOnDemand]: 11/37 looper letters, 243 selfloop transitions, 110 changer transitions 1723/2077 dead transitions. [2022-12-06 01:31:55,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 2077 transitions, 62969 flow [2022-12-06 01:31:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 01:31:55,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 01:31:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 385 transitions. [2022-12-06 01:31:55,769 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4002079002079002 [2022-12-06 01:31:55,770 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 126 predicate places. [2022-12-06 01:31:55,771 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:31:55,771 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 2077 transitions, 62969 flow [2022-12-06 01:31:55,915 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 2077 transitions, 62969 flow [2022-12-06 01:31:55,916 INFO L188 LiptonReduction]: Number of co-enabled transitions 1676 [2022-12-06 01:31:55,923 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:31:55,924 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 154 [2022-12-06 01:31:55,924 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 2077 transitions, 62969 flow [2022-12-06 01:31:55,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:55,924 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:31:55,924 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:31:55,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 01:31:56,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-06 01:31:56,135 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:31:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:31:56,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2124764428, now seen corresponding path program 2 times [2022-12-06 01:31:56,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:31:56,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593485063] [2022-12-06 01:31:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:31:56,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:31:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:31:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:31:56,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:31:56,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593485063] [2022-12-06 01:31:56,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593485063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:31:56,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:31:56,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:31:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134399310] [2022-12-06 01:31:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:31:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 01:31:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:31:56,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 01:31:56,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 01:31:56,813 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:31:56,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 2077 transitions, 62969 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:31:56,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:31:56,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:31:56,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:02,320 INFO L130 PetriNetUnfolder]: 7538/14408 cut-off events. [2022-12-06 01:32:02,320 INFO L131 PetriNetUnfolder]: For 1391/1391 co-relation queries the response was YES. [2022-12-06 01:32:02,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222422 conditions, 14408 events. 7538/14408 cut-off events. For 1391/1391 co-relation queries the response was YES. Maximal size of possible extension queue 1293. Compared 132664 event pairs, 120 based on Foata normal form. 0/8460 useless extension candidates. Maximal degree in co-relation 181777. Up to 10250 conditions per place. [2022-12-06 01:32:02,358 INFO L137 encePairwiseOnDemand]: 18/37 looper letters, 296 selfloop transitions, 52 changer transitions 1707/2056 dead transitions. [2022-12-06 01:32:02,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 2056 transitions, 66443 flow [2022-12-06 01:32:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 01:32:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 01:32:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2022-12-06 01:32:02,359 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5212355212355212 [2022-12-06 01:32:02,360 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2022-12-06 01:32:02,360 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:02,360 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 2056 transitions, 66443 flow [2022-12-06 01:32:02,471 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 2056 transitions, 66443 flow [2022-12-06 01:32:02,472 INFO L188 LiptonReduction]: Number of co-enabled transitions 1640 [2022-12-06 01:32:02,477 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:02,478 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 118 [2022-12-06 01:32:02,478 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 2056 transitions, 66443 flow [2022-12-06 01:32:02,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:02,478 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:02,478 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:02,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 01:32:02,479 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:02,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2059756119, now seen corresponding path program 1 times [2022-12-06 01:32:02,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227201394] [2022-12-06 01:32:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227201394] [2022-12-06 01:32:03,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227201394] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:32:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388105853] [2022-12-06 01:32:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:03,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:32:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:32:03,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:32:03,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 01:32:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:03,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-06 01:32:03,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 01:32:03,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 01:32:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:03,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 01:32:03,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-12-06 01:32:03,979 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-06 01:32:03,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-06 01:32:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:04,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388105853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 01:32:04,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 01:32:04,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-12-06 01:32:04,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278723306] [2022-12-06 01:32:04,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 01:32:04,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 01:32:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:04,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 01:32:04,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-12-06 01:32:04,021 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:04,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 2056 transitions, 66443 flow. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:04,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:04,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:04,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:12,135 INFO L130 PetriNetUnfolder]: 7991/15637 cut-off events. [2022-12-06 01:32:12,135 INFO L131 PetriNetUnfolder]: For 1616/1616 co-relation queries the response was YES. [2022-12-06 01:32:12,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256200 conditions, 15637 events. 7991/15637 cut-off events. For 1616/1616 co-relation queries the response was YES. Maximal size of possible extension queue 1501. Compared 149936 event pairs, 44 based on Foata normal form. 0/9409 useless extension candidates. Maximal degree in co-relation 207661. Up to 10377 conditions per place. [2022-12-06 01:32:12,180 INFO L137 encePairwiseOnDemand]: 11/37 looper letters, 286 selfloop transitions, 69 changer transitions 2041/2397 dead transitions. [2022-12-06 01:32:12,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 2397 transitions, 82249 flow [2022-12-06 01:32:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 01:32:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 01:32:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 335 transitions. [2022-12-06 01:32:12,182 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3936545240893067 [2022-12-06 01:32:12,182 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 154 predicate places. [2022-12-06 01:32:12,183 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:12,183 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 2397 transitions, 82249 flow [2022-12-06 01:32:12,353 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 2397 transitions, 82249 flow [2022-12-06 01:32:12,354 INFO L188 LiptonReduction]: Number of co-enabled transitions 1832 [2022-12-06 01:32:12,360 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:12,361 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 178 [2022-12-06 01:32:12,361 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 2397 transitions, 82249 flow [2022-12-06 01:32:12,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:12,361 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:12,361 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:12,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 01:32:12,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-06 01:32:12,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:12,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2061237981, now seen corresponding path program 2 times [2022-12-06 01:32:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:12,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802797644] [2022-12-06 01:32:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:13,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:13,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802797644] [2022-12-06 01:32:13,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802797644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:13,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:13,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:32:13,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577673826] [2022-12-06 01:32:13,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:13,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 01:32:13,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:13,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 01:32:13,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 01:32:13,745 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:13,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 2397 transitions, 82249 flow. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:13,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:13,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:13,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:21,118 INFO L130 PetriNetUnfolder]: 8177/16131 cut-off events. [2022-12-06 01:32:21,119 INFO L131 PetriNetUnfolder]: For 1696/1696 co-relation queries the response was YES. [2022-12-06 01:32:21,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279769 conditions, 16131 events. 8177/16131 cut-off events. For 1696/1696 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 156469 event pairs, 58 based on Foata normal form. 0/9787 useless extension candidates. Maximal degree in co-relation 227067. Up to 10624 conditions per place. [2022-12-06 01:32:21,170 INFO L137 encePairwiseOnDemand]: 16/37 looper letters, 308 selfloop transitions, 64 changer transitions 2104/2477 dead transitions. [2022-12-06 01:32:21,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 2477 transitions, 89957 flow [2022-12-06 01:32:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 01:32:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 01:32:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 207 transitions. [2022-12-06 01:32:21,171 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.46621621621621623 [2022-12-06 01:32:21,171 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 165 predicate places. [2022-12-06 01:32:21,172 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:21,172 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 2477 transitions, 89957 flow [2022-12-06 01:32:21,314 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 2477 transitions, 89957 flow [2022-12-06 01:32:21,315 INFO L188 LiptonReduction]: Number of co-enabled transitions 1894 [2022-12-06 01:32:21,321 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:21,321 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 150 [2022-12-06 01:32:21,322 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 2477 transitions, 89957 flow [2022-12-06 01:32:21,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:21,322 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:21,322 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:21,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-06 01:32:21,322 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:21,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:21,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2061167808, now seen corresponding path program 3 times [2022-12-06 01:32:21,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:21,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365181863] [2022-12-06 01:32:21,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:22,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:22,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365181863] [2022-12-06 01:32:22,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365181863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:22,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:22,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:32:22,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130350859] [2022-12-06 01:32:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:22,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 01:32:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 01:32:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 01:32:22,591 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:22,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 2477 transitions, 89957 flow. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:22,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:22,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:22,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:30,196 INFO L130 PetriNetUnfolder]: 8117/16043 cut-off events. [2022-12-06 01:32:30,196 INFO L131 PetriNetUnfolder]: For 1668/1668 co-relation queries the response was YES. [2022-12-06 01:32:30,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293404 conditions, 16043 events. 8117/16043 cut-off events. For 1668/1668 co-relation queries the response was YES. Maximal size of possible extension queue 1517. Compared 155642 event pairs, 60 based on Foata normal form. 0/9749 useless extension candidates. Maximal degree in co-relation 237809. Up to 10513 conditions per place. [2022-12-06 01:32:30,242 INFO L137 encePairwiseOnDemand]: 15/37 looper letters, 314 selfloop transitions, 57 changer transitions 2092/2464 dead transitions. [2022-12-06 01:32:30,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 2464 transitions, 94409 flow [2022-12-06 01:32:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 01:32:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 01:32:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 154 transitions. [2022-12-06 01:32:30,243 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4624624624624625 [2022-12-06 01:32:30,244 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 171 predicate places. [2022-12-06 01:32:30,244 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:30,244 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 2464 transitions, 94409 flow [2022-12-06 01:32:30,532 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 2464 transitions, 94409 flow [2022-12-06 01:32:30,532 INFO L188 LiptonReduction]: Number of co-enabled transitions 1870 [2022-12-06 01:32:30,537 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:30,538 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 294 [2022-12-06 01:32:30,538 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 2464 transitions, 94409 flow [2022-12-06 01:32:30,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:30,538 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:30,538 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:30,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 01:32:30,539 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:30,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2061007341, now seen corresponding path program 3 times [2022-12-06 01:32:30,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:30,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355651564] [2022-12-06 01:32:30,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:30,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:31,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355651564] [2022-12-06 01:32:31,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355651564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:31,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:31,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:32:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146939720] [2022-12-06 01:32:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:31,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:32:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:32:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:32:31,088 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:31,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 2464 transitions, 94409 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:31,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:31,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:31,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:38,737 INFO L130 PetriNetUnfolder]: 8008/15775 cut-off events. [2022-12-06 01:32:38,738 INFO L131 PetriNetUnfolder]: For 1659/1659 co-relation queries the response was YES. [2022-12-06 01:32:38,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303903 conditions, 15775 events. 8008/15775 cut-off events. For 1659/1659 co-relation queries the response was YES. Maximal size of possible extension queue 1487. Compared 152156 event pairs, 50 based on Foata normal form. 0/9551 useless extension candidates. Maximal degree in co-relation 246478. Up to 10463 conditions per place. [2022-12-06 01:32:38,787 INFO L137 encePairwiseOnDemand]: 13/37 looper letters, 299 selfloop transitions, 59 changer transitions 2083/2442 dead transitions. [2022-12-06 01:32:38,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 2442 transitions, 98446 flow [2022-12-06 01:32:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 01:32:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 01:32:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 199 transitions. [2022-12-06 01:32:38,789 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.44819819819819817 [2022-12-06 01:32:38,789 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 182 predicate places. [2022-12-06 01:32:38,789 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:38,790 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 2442 transitions, 98446 flow [2022-12-06 01:32:38,948 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 2442 transitions, 98446 flow [2022-12-06 01:32:38,948 INFO L188 LiptonReduction]: Number of co-enabled transitions 1842 [2022-12-06 01:32:38,954 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:38,955 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 166 [2022-12-06 01:32:38,955 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 2442 transitions, 98446 flow [2022-12-06 01:32:38,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:38,955 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:38,955 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:38,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 01:32:38,955 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1763030678, now seen corresponding path program 4 times [2022-12-06 01:32:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:38,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510781310] [2022-12-06 01:32:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:38,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:39,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510781310] [2022-12-06 01:32:39,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510781310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:39,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:39,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:32:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372126035] [2022-12-06 01:32:39,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:39,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:32:39,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:39,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:32:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:32:39,709 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:39,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 2442 transitions, 98446 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:39,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:39,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:39,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:47,544 INFO L130 PetriNetUnfolder]: 8168/16125 cut-off events. [2022-12-06 01:32:47,544 INFO L131 PetriNetUnfolder]: For 1630/1630 co-relation queries the response was YES. [2022-12-06 01:32:47,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324868 conditions, 16125 events. 8168/16125 cut-off events. For 1630/1630 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 156369 event pairs, 50 based on Foata normal form. 0/9775 useless extension candidates. Maximal degree in co-relation 263545. Up to 10638 conditions per place. [2022-12-06 01:32:47,592 INFO L137 encePairwiseOnDemand]: 13/37 looper letters, 307 selfloop transitions, 64 changer transitions 2162/2534 dead transitions. [2022-12-06 01:32:47,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 2534 transitions, 107222 flow [2022-12-06 01:32:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 01:32:47,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 01:32:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 230 transitions. [2022-12-06 01:32:47,593 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4781704781704782 [2022-12-06 01:32:47,594 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 194 predicate places. [2022-12-06 01:32:47,594 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:47,594 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 2534 transitions, 107222 flow [2022-12-06 01:32:47,754 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 2534 transitions, 107222 flow [2022-12-06 01:32:47,755 INFO L188 LiptonReduction]: Number of co-enabled transitions 1882 [2022-12-06 01:32:47,760 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:47,761 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 167 [2022-12-06 01:32:47,761 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 2534 transitions, 107222 flow [2022-12-06 01:32:47,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:47,761 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:47,761 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:47,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 01:32:47,761 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1716861335, now seen corresponding path program 4 times [2022-12-06 01:32:47,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:47,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838887552] [2022-12-06 01:32:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:47,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:48,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:48,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838887552] [2022-12-06 01:32:48,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838887552] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:48,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:48,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 01:32:48,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725698886] [2022-12-06 01:32:48,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:48,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 01:32:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:48,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 01:32:48,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 01:32:48,234 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:48,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 2534 transitions, 107222 flow. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:48,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:48,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:48,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:32:57,803 INFO L130 PetriNetUnfolder]: 8942/17760 cut-off events. [2022-12-06 01:32:57,803 INFO L131 PetriNetUnfolder]: For 1875/1875 co-relation queries the response was YES. [2022-12-06 01:32:57,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375465 conditions, 17760 events. 8942/17760 cut-off events. For 1875/1875 co-relation queries the response was YES. Maximal size of possible extension queue 1676. Compared 176248 event pairs, 60 based on Foata normal form. 0/10852 useless extension candidates. Maximal degree in co-relation 303861. Up to 11676 conditions per place. [2022-12-06 01:32:57,860 INFO L137 encePairwiseOnDemand]: 19/37 looper letters, 339 selfloop transitions, 73 changer transitions 2389/2802 dead transitions. [2022-12-06 01:32:57,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 2802 transitions, 124176 flow [2022-12-06 01:32:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 01:32:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 01:32:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 183 transitions. [2022-12-06 01:32:57,861 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4945945945945946 [2022-12-06 01:32:57,861 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 203 predicate places. [2022-12-06 01:32:57,862 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:32:57,862 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 2802 transitions, 124176 flow [2022-12-06 01:32:58,126 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 2802 transitions, 124176 flow [2022-12-06 01:32:58,127 INFO L188 LiptonReduction]: Number of co-enabled transitions 2090 [2022-12-06 01:32:58,132 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:32:58,133 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 272 [2022-12-06 01:32:58,133 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 2802 transitions, 124176 flow [2022-12-06 01:32:58,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:58,133 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:32:58,133 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:32:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 01:32:58,133 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:32:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:32:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1732054745, now seen corresponding path program 5 times [2022-12-06 01:32:58,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:32:58,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034172720] [2022-12-06 01:32:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:32:58,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:32:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:32:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:32:58,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:32:58,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034172720] [2022-12-06 01:32:58,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034172720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:32:58,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:32:58,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:32:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668572541] [2022-12-06 01:32:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:32:58,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 01:32:58,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:32:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 01:32:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 01:32:58,965 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:32:58,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 2802 transitions, 124176 flow. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:32:58,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:32:58,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:32:58,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:33:09,500 INFO L130 PetriNetUnfolder]: 9335/18561 cut-off events. [2022-12-06 01:33:09,500 INFO L131 PetriNetUnfolder]: For 1979/1979 co-relation queries the response was YES. [2022-12-06 01:33:09,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410260 conditions, 18561 events. 9335/18561 cut-off events. For 1979/1979 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 185656 event pairs, 78 based on Foata normal form. 0/11373 useless extension candidates. Maximal degree in co-relation 331579. Up to 12136 conditions per place. [2022-12-06 01:33:09,565 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 360 selfloop transitions, 81 changer transitions 2487/2929 dead transitions. [2022-12-06 01:33:09,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 2929 transitions, 135665 flow [2022-12-06 01:33:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 01:33:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 01:33:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 248 transitions. [2022-12-06 01:33:09,567 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47876447876447875 [2022-12-06 01:33:09,567 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 216 predicate places. [2022-12-06 01:33:09,567 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:33:09,568 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 2929 transitions, 135665 flow [2022-12-06 01:33:09,765 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 2929 transitions, 135665 flow [2022-12-06 01:33:09,766 INFO L188 LiptonReduction]: Number of co-enabled transitions 2198 [2022-12-06 01:33:09,773 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:33:09,774 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 207 [2022-12-06 01:33:09,774 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 2929 transitions, 135665 flow [2022-12-06 01:33:09,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:09,774 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:33:09,774 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:33:09,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 01:33:09,775 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:33:09,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:33:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1732286366, now seen corresponding path program 2 times [2022-12-06 01:33:09,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:33:09,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748089283] [2022-12-06 01:33:09,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:33:09,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:33:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:33:10,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:10,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:33:10,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748089283] [2022-12-06 01:33:10,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748089283] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:33:10,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269676735] [2022-12-06 01:33:10,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 01:33:10,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:33:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:33:10,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:33:10,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 01:33:11,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 01:33:11,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 01:33:11,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-06 01:33:11,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 01:33:11,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 01:33:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:11,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 01:33:11,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-12-06 01:33:11,888 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-06 01:33:11,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-06 01:33:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:11,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269676735] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 01:33:11,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 01:33:11,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-12-06 01:33:11,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532074820] [2022-12-06 01:33:11,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 01:33:11,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 01:33:11,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:33:11,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 01:33:11,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-06 01:33:11,957 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:33:11,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 2929 transitions, 135665 flow. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:11,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:33:11,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:33:11,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:33:26,076 INFO L130 PetriNetUnfolder]: 9430/19294 cut-off events. [2022-12-06 01:33:26,077 INFO L131 PetriNetUnfolder]: For 2102/2102 co-relation queries the response was YES. [2022-12-06 01:33:26,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443612 conditions, 19294 events. 9430/19294 cut-off events. For 2102/2102 co-relation queries the response was YES. Maximal size of possible extension queue 1881. Compared 200027 event pairs, 78 based on Foata normal form. 0/12080 useless extension candidates. Maximal degree in co-relation 357927. Up to 12717 conditions per place. [2022-12-06 01:33:26,136 INFO L137 encePairwiseOnDemand]: 10/37 looper letters, 336 selfloop transitions, 111 changer transitions 2605/3053 dead transitions. [2022-12-06 01:33:26,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 3053 transitions, 147545 flow [2022-12-06 01:33:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-06 01:33:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-06 01:33:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 483 transitions. [2022-12-06 01:33:26,139 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32635135135135135 [2022-12-06 01:33:26,139 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 255 predicate places. [2022-12-06 01:33:26,139 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:33:26,140 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 3053 transitions, 147545 flow [2022-12-06 01:33:26,349 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 3053 transitions, 147545 flow [2022-12-06 01:33:26,350 INFO L188 LiptonReduction]: Number of co-enabled transitions 2252 [2022-12-06 01:33:26,357 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:33:26,357 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 218 [2022-12-06 01:33:26,358 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 3053 transitions, 147545 flow [2022-12-06 01:33:26,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:26,358 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:33:26,358 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:33:26,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 01:33:26,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:33:26,559 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:33:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:33:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1733537588, now seen corresponding path program 5 times [2022-12-06 01:33:26,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:33:26,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158842288] [2022-12-06 01:33:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:33:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:33:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:33:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:27,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:33:27,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158842288] [2022-12-06 01:33:27,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158842288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:33:27,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:33:27,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:33:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784363189] [2022-12-06 01:33:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:33:27,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:33:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:33:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:33:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:33:27,111 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:33:27,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 3053 transitions, 147545 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:27,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:33:27,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:33:27,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:33:39,941 INFO L130 PetriNetUnfolder]: 9580/19560 cut-off events. [2022-12-06 01:33:39,941 INFO L131 PetriNetUnfolder]: For 2147/2147 co-relation queries the response was YES. [2022-12-06 01:33:39,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468915 conditions, 19560 events. 9580/19560 cut-off events. For 2147/2147 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 202773 event pairs, 78 based on Foata normal form. 0/12216 useless extension candidates. Maximal degree in co-relation 378640. Up to 12862 conditions per place. [2022-12-06 01:33:40,005 INFO L137 encePairwiseOnDemand]: 14/37 looper letters, 397 selfloop transitions, 56 changer transitions 2648/3102 dead transitions. [2022-12-06 01:33:40,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 3102 transitions, 156111 flow [2022-12-06 01:33:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 01:33:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 01:33:40,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 237 transitions. [2022-12-06 01:33:40,007 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49272349272349275 [2022-12-06 01:33:40,007 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 267 predicate places. [2022-12-06 01:33:40,008 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:33:40,008 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 3102 transitions, 156111 flow [2022-12-06 01:33:40,231 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 3102 transitions, 156111 flow [2022-12-06 01:33:40,232 INFO L188 LiptonReduction]: Number of co-enabled transitions 2280 [2022-12-06 01:33:40,241 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:33:40,241 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 233 [2022-12-06 01:33:40,241 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 3102 transitions, 156111 flow [2022-12-06 01:33:40,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:40,242 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:33:40,242 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:33:40,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-06 01:33:40,242 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:33:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:33:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1732124918, now seen corresponding path program 6 times [2022-12-06 01:33:40,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:33:40,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454304598] [2022-12-06 01:33:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:33:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:33:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:33:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:40,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:33:40,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454304598] [2022-12-06 01:33:40,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454304598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:33:40,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:33:40,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:33:40,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369091327] [2022-12-06 01:33:40,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:33:40,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:33:40,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:33:40,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:33:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:33:40,685 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:33:40,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 3102 transitions, 156111 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:40,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:33:40,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:33:40,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:33:53,388 INFO L130 PetriNetUnfolder]: 9520/19490 cut-off events. [2022-12-06 01:33:53,389 INFO L131 PetriNetUnfolder]: For 2103/2103 co-relation queries the response was YES. [2022-12-06 01:33:53,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485117 conditions, 19490 events. 9520/19490 cut-off events. For 2103/2103 co-relation queries the response was YES. Maximal size of possible extension queue 1904. Compared 202328 event pairs, 80 based on Foata normal form. 0/12196 useless extension candidates. Maximal degree in co-relation 392109. Up to 12751 conditions per place. [2022-12-06 01:33:53,452 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 397 selfloop transitions, 55 changer transitions 2636/3089 dead transitions. [2022-12-06 01:33:53,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 3089 transitions, 161631 flow [2022-12-06 01:33:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 01:33:53,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 01:33:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2022-12-06 01:33:53,453 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5165165165165165 [2022-12-06 01:33:53,454 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 273 predicate places. [2022-12-06 01:33:53,454 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:33:53,454 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 3089 transitions, 161631 flow [2022-12-06 01:33:53,688 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 3089 transitions, 161631 flow [2022-12-06 01:33:53,689 INFO L188 LiptonReduction]: Number of co-enabled transitions 2256 [2022-12-06 01:33:53,696 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:33:53,696 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 242 [2022-12-06 01:33:53,697 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 3089 transitions, 161631 flow [2022-12-06 01:33:53,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:53,697 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:33:53,697 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:33:53,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-06 01:33:53,697 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:33:53,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:33:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1307289364, now seen corresponding path program 3 times [2022-12-06 01:33:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:33:53,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520279810] [2022-12-06 01:33:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:33:53,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:33:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:33:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:54,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:33:54,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520279810] [2022-12-06 01:33:54,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520279810] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:33:54,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87292576] [2022-12-06 01:33:54,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 01:33:54,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:33:54,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:33:54,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:33:54,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 01:33:55,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 01:33:55,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 01:33:55,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-06 01:33:55,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 01:33:55,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 01:33:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:55,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 01:33:55,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-12-06 01:33:55,991 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-06 01:33:55,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2022-12-06 01:33:56,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:33:56,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87292576] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 01:33:56,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 01:33:56,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-12-06 01:33:56,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19205272] [2022-12-06 01:33:56,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 01:33:56,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 01:33:56,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:33:56,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 01:33:56,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-12-06 01:33:56,066 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:33:56,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 3089 transitions, 161631 flow. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:33:56,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:33:56,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:33:56,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:34:11,072 INFO L130 PetriNetUnfolder]: 9730/19840 cut-off events. [2022-12-06 01:34:11,073 INFO L131 PetriNetUnfolder]: For 2142/2142 co-relation queries the response was YES. [2022-12-06 01:34:11,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512804 conditions, 19840 events. 9730/19840 cut-off events. For 2142/2142 co-relation queries the response was YES. Maximal size of possible extension queue 1920. Compared 205605 event pairs, 80 based on Foata normal form. 0/12388 useless extension candidates. Maximal degree in co-relation 413916. Up to 13075 conditions per place. [2022-12-06 01:34:11,146 INFO L137 encePairwiseOnDemand]: 12/37 looper letters, 355 selfloop transitions, 103 changer transitions 2698/3157 dead transitions. [2022-12-06 01:34:11,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 3157 transitions, 171503 flow [2022-12-06 01:34:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 01:34:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 01:34:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 362 transitions. [2022-12-06 01:34:11,147 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3762993762993763 [2022-12-06 01:34:11,148 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 298 predicate places. [2022-12-06 01:34:11,148 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:34:11,148 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 3157 transitions, 171503 flow [2022-12-06 01:34:11,571 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 3157 transitions, 171503 flow [2022-12-06 01:34:11,571 INFO L188 LiptonReduction]: Number of co-enabled transitions 2320 [2022-12-06 01:34:11,579 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:34:11,580 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 432 [2022-12-06 01:34:11,580 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 3157 transitions, 171503 flow [2022-12-06 01:34:11,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:11,580 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:34:11,580 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:34:11,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 01:34:11,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-06 01:34:11,786 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:34:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:34:11,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1203260173, now seen corresponding path program 2 times [2022-12-06 01:34:11,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:34:11,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570764491] [2022-12-06 01:34:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:34:11,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:34:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:34:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:34:12,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:34:12,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570764491] [2022-12-06 01:34:12,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570764491] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:34:12,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405669031] [2022-12-06 01:34:12,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 01:34:12,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:34:12,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:34:12,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:34:12,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 01:34:13,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 01:34:13,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 01:34:13,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-06 01:34:13,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 01:34:13,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 01:34:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:34:13,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 01:34:13,630 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-06 01:34:13,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-12-06 01:34:13,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-12-06 01:34:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:34:13,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405669031] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 01:34:13,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 01:34:13,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-12-06 01:34:13,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475897972] [2022-12-06 01:34:13,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 01:34:13,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 01:34:13,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:34:13,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 01:34:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-12-06 01:34:13,683 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:34:13,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 3157 transitions, 171503 flow. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:13,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:34:13,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:34:13,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:34:29,802 INFO L130 PetriNetUnfolder]: 9972/20494 cut-off events. [2022-12-06 01:34:29,802 INFO L131 PetriNetUnfolder]: For 2241/2241 co-relation queries the response was YES. [2022-12-06 01:34:29,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548947 conditions, 20494 events. 9972/20494 cut-off events. For 2241/2241 co-relation queries the response was YES. Maximal size of possible extension queue 2028. Compared 215250 event pairs, 84 based on Foata normal form. 0/12860 useless extension candidates. Maximal degree in co-relation 442131. Up to 13300 conditions per place. [2022-12-06 01:34:29,872 INFO L137 encePairwiseOnDemand]: 10/37 looper letters, 402 selfloop transitions, 63 changer transitions 2814/3280 dead transitions. [2022-12-06 01:34:29,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 3280 transitions, 184763 flow [2022-12-06 01:34:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 01:34:29,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-06 01:34:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 425 transitions. [2022-12-06 01:34:29,874 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.37053182214472535 [2022-12-06 01:34:29,874 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 328 predicate places. [2022-12-06 01:34:29,874 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:34:29,875 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 366 places, 3280 transitions, 184763 flow [2022-12-06 01:34:30,138 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 366 places, 3280 transitions, 184763 flow [2022-12-06 01:34:30,138 INFO L188 LiptonReduction]: Number of co-enabled transitions 2418 [2022-12-06 01:34:30,146 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:34:30,147 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 273 [2022-12-06 01:34:30,147 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 3280 transitions, 184763 flow [2022-12-06 01:34:30,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:30,147 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:34:30,147 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:34:30,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 01:34:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-06 01:34:30,348 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:34:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:34:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1204671862, now seen corresponding path program 7 times [2022-12-06 01:34:30,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:34:30,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759655909] [2022-12-06 01:34:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:34:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:34:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:34:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:34:30,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:34:30,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759655909] [2022-12-06 01:34:30,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759655909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:34:30,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:34:30,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:34:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433378650] [2022-12-06 01:34:30,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:34:30,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:34:30,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:34:30,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:34:30,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:34:30,803 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:34:30,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 3280 transitions, 184763 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:30,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:34:30,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:34:30,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:34:45,545 INFO L130 PetriNetUnfolder]: 9987/20588 cut-off events. [2022-12-06 01:34:45,545 INFO L131 PetriNetUnfolder]: For 2227/2227 co-relation queries the response was YES. [2022-12-06 01:34:45,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570676 conditions, 20588 events. 9987/20588 cut-off events. For 2227/2227 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 217124 event pairs, 92 based on Foata normal form. 0/12952 useless extension candidates. Maximal degree in co-relation 460078. Up to 13239 conditions per place. [2022-12-06 01:34:45,615 INFO L137 encePairwiseOnDemand]: 17/37 looper letters, 426 selfloop transitions, 48 changer transitions 2826/3301 dead transitions. [2022-12-06 01:34:45,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 3301 transitions, 192545 flow [2022-12-06 01:34:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 01:34:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 01:34:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2022-12-06 01:34:45,616 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5337837837837838 [2022-12-06 01:34:45,617 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 335 predicate places. [2022-12-06 01:34:45,617 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:34:45,617 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 3301 transitions, 192545 flow [2022-12-06 01:34:45,880 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 3301 transitions, 192545 flow [2022-12-06 01:34:45,880 INFO L188 LiptonReduction]: Number of co-enabled transitions 2412 [2022-12-06 01:34:45,888 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:34:45,888 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 271 [2022-12-06 01:34:45,888 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 3301 transitions, 192545 flow [2022-12-06 01:34:45,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:45,889 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:34:45,889 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:34:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-06 01:34:45,889 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:34:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:34:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1204511395, now seen corresponding path program 6 times [2022-12-06 01:34:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:34:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719242234] [2022-12-06 01:34:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:34:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:34:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:34:46,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:34:46,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:34:46,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719242234] [2022-12-06 01:34:46,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719242234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:34:46,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:34:46,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:34:46,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435666727] [2022-12-06 01:34:46,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:34:46,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:34:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:34:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:34:46,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:34:46,414 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:34:46,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 3301 transitions, 192545 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:34:46,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:34:46,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:34:46,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:35:01,764 INFO L130 PetriNetUnfolder]: 10052/20784 cut-off events. [2022-12-06 01:35:01,764 INFO L131 PetriNetUnfolder]: For 2246/2246 co-relation queries the response was YES. [2022-12-06 01:35:01,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595855 conditions, 20784 events. 10052/20784 cut-off events. For 2246/2246 co-relation queries the response was YES. Maximal size of possible extension queue 2052. Compared 219709 event pairs, 92 based on Foata normal form. 0/13096 useless extension candidates. Maximal degree in co-relation 480447. Up to 13436 conditions per place. [2022-12-06 01:35:01,835 INFO L137 encePairwiseOnDemand]: 14/37 looper letters, 411 selfloop transitions, 64 changer transitions 2853/3329 dead transitions. [2022-12-06 01:35:01,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 3329 transitions, 200837 flow [2022-12-06 01:35:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 01:35:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 01:35:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 260 transitions. [2022-12-06 01:35:01,836 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4391891891891892 [2022-12-06 01:35:01,837 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 350 predicate places. [2022-12-06 01:35:01,837 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:35:01,837 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 3329 transitions, 200837 flow [2022-12-06 01:35:02,110 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 3329 transitions, 200837 flow [2022-12-06 01:35:02,111 INFO L188 LiptonReduction]: Number of co-enabled transitions 2428 [2022-12-06 01:35:02,118 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:35:02,119 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 282 [2022-12-06 01:35:02,119 INFO L495 AbstractCegarLoop]: Abstraction has has 388 places, 3329 transitions, 200837 flow [2022-12-06 01:35:02,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:35:02,119 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:35:02,119 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:35:02,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-06 01:35:02,120 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:35:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:35:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1204742035, now seen corresponding path program 7 times [2022-12-06 01:35:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:35:02,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105113409] [2022-12-06 01:35:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:35:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:35:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:35:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:35:02,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:35:02,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105113409] [2022-12-06 01:35:02,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105113409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:35:02,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:35:02,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 01:35:02,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422843753] [2022-12-06 01:35:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:35:02,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 01:35:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:35:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 01:35:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 01:35:02,667 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 37 [2022-12-06 01:35:02,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 3329 transitions, 200837 flow. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:35:02,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:35:02,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 37 [2022-12-06 01:35:02,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:35:19,091 INFO L130 PetriNetUnfolder]: 10030/20696 cut-off events. [2022-12-06 01:35:19,091 INFO L131 PetriNetUnfolder]: For 2284/2284 co-relation queries the response was YES. [2022-12-06 01:35:19,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613754 conditions, 20696 events. 10030/20696 cut-off events. For 2284/2284 co-relation queries the response was YES. Maximal size of possible extension queue 2027. Compared 218685 event pairs, 90 based on Foata normal form. 0/13032 useless extension candidates. Maximal degree in co-relation 494538. Up to 13471 conditions per place. [2022-12-06 01:35:19,165 INFO L137 encePairwiseOnDemand]: 18/37 looper letters, 407 selfloop transitions, 63 changer transitions 2847/3318 dead transitions. [2022-12-06 01:35:19,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 3318 transitions, 206808 flow [2022-12-06 01:35:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 01:35:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 01:35:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 200 transitions. [2022-12-06 01:35:19,166 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4914004914004914 [2022-12-06 01:35:19,166 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 358 predicate places. [2022-12-06 01:35:19,167 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:35:19,167 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 3318 transitions, 206808 flow [2022-12-06 01:35:19,442 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 3318 transitions, 206808 flow [2022-12-06 01:35:19,442 INFO L188 LiptonReduction]: Number of co-enabled transitions 2432 [2022-12-06 01:35:19,449 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 01:35:19,450 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 284 [2022-12-06 01:35:19,450 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 3318 transitions, 206808 flow [2022-12-06 01:35:19,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 01:35:19,450 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:35:19,450 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 01:35:19,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-06 01:35:19,451 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 01:35:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:35:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1228152542, now seen corresponding path program 4 times [2022-12-06 01:35:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:35:19,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132905463] [2022-12-06 01:35:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:35:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:35:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:35:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:35:20,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:35:20,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132905463] [2022-12-06 01:35:20,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132905463] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 01:35:20,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700672179] [2022-12-06 01:35:20,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-06 01:35:20,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 01:35:20,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:35:20,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 01:35:20,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 01:35:21,012 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-06 01:35:21,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 01:35:21,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-06 01:35:21,023 INFO L286 TraceCheckSpWp]: Computing forward predicates...