/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:18:41,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:18:41,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:18:41,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:18:41,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:18:41,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:18:41,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:18:41,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:18:41,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:18:41,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:18:41,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:18:41,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:18:41,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:18:41,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:18:41,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:18:41,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:18:41,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:18:41,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:18:41,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:18:41,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:18:41,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:18:41,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:18:41,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:18:41,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:18:41,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:18:41,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:18:41,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:18:41,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:18:41,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:18:41,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:18:41,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:18:41,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:18:41,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:18:41,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:18:41,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:18:41,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:18:41,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:18:41,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:18:41,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:18:41,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:18:41,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:18:41,604 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-NoLbe.epf [2022-12-12 12:18:41,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:18:41,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:18:41,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:18:41,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:18:41,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:18:41,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:18:41,628 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:18:41,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:18:41,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:18:41,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:18:41,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:18:41,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:18:41,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:18:41,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:18:41,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:18:41,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:18:41,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:18:41,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:18:41,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:18:41,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:18:42,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:18:42,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:18:42,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:18:42,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:18:42,168 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:18:42,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i [2022-12-12 12:18:44,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:18:45,089 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:18:45,090 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i [2022-12-12 12:18:45,260 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08fedd34b/c29c0a6a5aed42d5bba09c4e73292da6/FLAGf817a0f49 [2022-12-12 12:18:45,289 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08fedd34b/c29c0a6a5aed42d5bba09c4e73292da6 [2022-12-12 12:18:45,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:18:45,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:18:45,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:18:45,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:18:45,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:18:45,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:18:45" (1/1) ... [2022-12-12 12:18:45,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c748504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:45, skipping insertion in model container [2022-12-12 12:18:45,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:18:45" (1/1) ... [2022-12-12 12:18:45,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:18:45,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:18:46,134 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_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i[5469,5482] [2022-12-12 12:18:46,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:46,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:46,911 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 12:18:46,922 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:46,938 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:46,964 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:47,304 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 12:18:47,325 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 12:18:47,703 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 12:18:47,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:47,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:47,907 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:47,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:47,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:47,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:48,379 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 12:18:48,386 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 12:18:48,393 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 12:18:48,707 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 12:18:48,709 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 12:18:48,716 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 12:18:48,716 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 12:18:49,158 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 12:18:50,133 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 12:18:50,140 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 12:18:50,183 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 12:18:50,186 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 12:18:50,499 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 12:18:50,642 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 12:18:50,646 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 12:18:50,798 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 12:18:51,006 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 12:18:51,007 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 12:18:51,007 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 12:18:52,242 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 12:18:52,243 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:52,268 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:52,272 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:52,286 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:53,147 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 12:18:53,147 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 12:18:53,201 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-12 12:18:53,202 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-12 12:18:53,202 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-12 12:18:53,203 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 12:18:53,204 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-12 12:18:53,204 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-12 12:18:53,206 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 12:18:53,206 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-12 12:18:53,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:18:53,287 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:18:53,334 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_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i[5469,5482] [2022-12-12 12:18:53,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,341 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,342 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,343 WARN L623 FunctionHandler]: Unknown extern function cpu_relax [2022-12-12 12:18:53,343 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:53,343 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:53,344 WARN L623 FunctionHandler]: Unknown extern function smp_rmb [2022-12-12 12:18:53,347 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 12:18:53,350 WARN L623 FunctionHandler]: Unknown extern function set_normalized_timespec [2022-12-12 12:18:53,357 WARN L623 FunctionHandler]: Unknown extern function __iter_div_u64_rem [2022-12-12 12:18:53,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:18:53,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:18:53,402 WARN L623 FunctionHandler]: Unknown extern function bit_spin_lock [2022-12-12 12:18:53,403 WARN L623 FunctionHandler]: Unknown extern function __bit_spin_unlock [2022-12-12 12:18:53,403 WARN L623 FunctionHandler]: Unknown extern function bit_spin_is_locked [2022-12-12 12:18:53,406 WARN L623 FunctionHandler]: Unknown extern function d_instantiate [2022-12-12 12:18:53,407 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 12:18:53,407 WARN L623 FunctionHandler]: Unknown extern function d_instantiate_unique [2022-12-12 12:18:53,407 WARN L623 FunctionHandler]: Unknown extern function d_rehash [2022-12-12 12:18:53,414 WARN L623 FunctionHandler]: Unknown extern function timespec_trunc [2022-12-12 12:18:53,438 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 12:18:53,440 WARN L623 FunctionHandler]: Unknown extern function atomic_add_unless [2022-12-12 12:18:53,441 WARN L623 FunctionHandler]: Unknown extern function kobject_get [2022-12-12 12:18:53,442 WARN L623 FunctionHandler]: Unknown extern function kobject_put [2022-12-12 12:18:53,462 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-12 12:18:53,467 WARN L623 FunctionHandler]: Unknown extern function llist_add_batch [2022-12-12 12:18:53,468 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-12 12:18:53,472 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-12 12:18:53,489 WARN L623 FunctionHandler]: Unknown extern function tty_unlock [2022-12-12 12:18:53,489 WARN L623 FunctionHandler]: Unknown extern function tty_wait_until_sent [2022-12-12 12:18:53,490 WARN L623 FunctionHandler]: Unknown extern function tty_lock [2022-12-12 12:18:53,557 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-12-12 12:18:53,557 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:53,559 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:53,561 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:53,564 WARN L623 FunctionHandler]: Unknown extern function ____ilog2_NaN [2022-12-12 12:18:53,598 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 12:18:53,599 WARN L1573 CHandler]: Possible shadowing of function iminor [2022-12-12 12:18:53,605 WARN L623 FunctionHandler]: Unknown extern function platform_device_alloc [2022-12-12 12:18:53,605 WARN L623 FunctionHandler]: Unknown extern function platform_device_add [2022-12-12 12:18:53,606 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-12 12:18:53,607 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 12:18:53,607 WARN L623 FunctionHandler]: Unknown extern function platform_device_del [2022-12-12 12:18:53,607 WARN L623 FunctionHandler]: Unknown extern function platform_device_put [2022-12-12 12:18:53,608 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-12 12:18:53,608 WARN L623 FunctionHandler]: Unknown extern function platform_device_unregister [2022-12-12 12:18:53,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:18:54,048 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:18:54,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54 WrapperNode [2022-12-12 12:18:54,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:18:54,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:18:54,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:18:54,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:18:54,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,213 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 49, statements flattened = 662 [2022-12-12 12:18:54,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:18:54,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:18:54,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:18:54,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:18:54,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:18:54,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:18:54,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:18:54,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:18:54,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (1/1) ... [2022-12-12 12:18:54,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:18:54,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:18:54,316 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) [2022-12-12 12:18:54,333 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 [2022-12-12 12:18:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:18:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-12 12:18:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-12 12:18:54,345 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_get [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-12 12:18:54,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:18:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:18:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-12 12:18:54,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:18:54,347 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:18:54,664 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:18:54,666 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:18:55,133 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:18:55,141 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:18:55,141 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2022-12-12 12:18:55,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:18:55 BoogieIcfgContainer [2022-12-12 12:18:55,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:18:55,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:18:55,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:18:55,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:18:55,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:18:45" (1/3) ... [2022-12-12 12:18:55,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42525524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:18:55, skipping insertion in model container [2022-12-12 12:18:55,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:18:54" (2/3) ... [2022-12-12 12:18:55,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42525524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:18:55, skipping insertion in model container [2022-12-12 12:18:55,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:18:55" (3/3) ... [2022-12-12 12:18:55,149 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_get.i [2022-12-12 12:18:55,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:18:55,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 12:18:55,164 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:18:55,242 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 12:18:55,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 681 places, 726 transitions, 1468 flow [2022-12-12 12:18:55,438 INFO L130 PetriNetUnfolder]: 52/724 cut-off events. [2022-12-12 12:18:55,439 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:18:55,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 724 events. 52/724 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1032 event pairs, 0 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 653. Up to 9 conditions per place. [2022-12-12 12:18:55,446 INFO L82 GeneralOperation]: Start removeDead. Operand has 681 places, 726 transitions, 1468 flow [2022-12-12 12:18:55,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 671 places, 716 transitions, 1441 flow [2022-12-12 12:18:55,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:18:55,464 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d494238, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:18:55,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-12 12:18:55,494 INFO L130 PetriNetUnfolder]: 10/336 cut-off events. [2022-12-12 12:18:55,494 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:18:55,495 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:18:55,495 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:18:55,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:18:55,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:18:55,500 INFO L85 PathProgramCache]: Analyzing trace with hash 295053358, now seen corresponding path program 1 times [2022-12-12 12:18:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:18:55,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109484673] [2022-12-12 12:18:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:18:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:18:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:18:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:18:56,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:18:56,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109484673] [2022-12-12 12:18:56,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109484673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:18:56,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:18:56,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-12 12:18:56,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416039401] [2022-12-12 12:18:56,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:18:56,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-12 12:18:56,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:18:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-12 12:18:56,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-12 12:18:56,585 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 726 [2022-12-12 12:18:56,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 716 transitions, 1441 flow. Second operand has 9 states, 9 states have (on average 664.0) internal successors, (5976), 9 states have internal predecessors, (5976), 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) [2022-12-12 12:18:56,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:18:56,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 726 [2022-12-12 12:18:56,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:18:57,026 INFO L130 PetriNetUnfolder]: 25/684 cut-off events. [2022-12-12 12:18:57,027 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-12-12 12:18:57,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 684 events. 25/684 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 928 event pairs, 0 based on Foata normal form. 17/673 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-12 12:18:57,034 INFO L137 encePairwiseOnDemand]: 683/726 looper letters, 18 selfloop transitions, 16 changer transitions 1/684 dead transitions. [2022-12-12 12:18:57,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 684 transitions, 1445 flow [2022-12-12 12:18:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 12:18:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 12:18:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 10653 transitions. [2022-12-12 12:18:57,063 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9170971074380165 [2022-12-12 12:18:57,066 INFO L295 CegarLoopForPetriNet]: 671 programPoint places, 10 predicate places. [2022-12-12 12:18:57,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 684 transitions, 1445 flow [2022-12-12 12:18:57,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 663 places, 684 transitions, 1372 flow, removed 18 selfloop flow, removed 18 redundant places. [2022-12-12 12:18:57,076 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 684 transitions, 1372 flow [2022-12-12 12:18:57,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 664.0) internal successors, (5976), 9 states have internal predecessors, (5976), 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) [2022-12-12 12:18:57,079 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:18:57,080 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:18:57,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:18:57,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:18:57,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:18:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash 664167957, now seen corresponding path program 1 times [2022-12-12 12:18:57,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:18:57,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68577445] [2022-12-12 12:18:57,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:18:57,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:18:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:18:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:18:57,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:18:57,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68577445] [2022-12-12 12:18:57,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68577445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:18:57,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:18:57,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 12:18:57,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784113773] [2022-12-12 12:18:57,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:18:57,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 12:18:57,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:18:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 12:18:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 12:18:57,546 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 726 [2022-12-12 12:18:57,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 684 transitions, 1372 flow. Second operand has 5 states, 5 states have (on average 675.2) internal successors, (3376), 5 states have internal predecessors, (3376), 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) [2022-12-12 12:18:57,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:18:57,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 726 [2022-12-12 12:18:57,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:18:57,754 INFO L130 PetriNetUnfolder]: 32/837 cut-off events. [2022-12-12 12:18:57,754 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-12-12 12:18:57,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 837 events. 32/837 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1397 event pairs, 0 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 258. Up to 13 conditions per place. [2022-12-12 12:18:57,759 INFO L137 encePairwiseOnDemand]: 719/726 looper letters, 24 selfloop transitions, 6 changer transitions 1/691 dead transitions. [2022-12-12 12:18:57,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 691 transitions, 1450 flow [2022-12-12 12:18:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 12:18:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 12:18:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4075 transitions. [2022-12-12 12:18:57,769 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9354912764003673 [2022-12-12 12:18:57,769 INFO L295 CegarLoopForPetriNet]: 671 programPoint places, -3 predicate places. [2022-12-12 12:18:57,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 691 transitions, 1450 flow [2022-12-12 12:18:57,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 691 transitions, 1426 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-12-12 12:18:57,779 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 691 transitions, 1426 flow [2022-12-12 12:18:57,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 675.2) internal successors, (3376), 5 states have internal predecessors, (3376), 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) [2022-12-12 12:18:57,781 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:18:57,781 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:18:57,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:18:57,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:18:57,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:18:57,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1189762214, now seen corresponding path program 1 times [2022-12-12 12:18:57,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:18:57,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455557512] [2022-12-12 12:18:57,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:18:57,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:18:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:18:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:18:58,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:18:58,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455557512] [2022-12-12 12:18:58,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455557512] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 12:18:58,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658910989] [2022-12-12 12:18:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:18:58,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:18:58,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:18:58,249 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) [2022-12-12 12:18:58,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 12:18:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:18:58,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-12 12:18:58,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 12:18:58,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-12 12:18:58,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 12:18:58,707 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 7 [2022-12-12 12:18:58,710 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 21 treesize of output 9 [2022-12-12 12:18:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 12:18:58,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 12:18:58,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658910989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:18:58,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 12:18:58,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-12-12 12:18:58,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491661592] [2022-12-12 12:18:58,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:18:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:18:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:18:58,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:18:58,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-12 12:18:58,743 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 652 out of 726 [2022-12-12 12:18:58,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 691 transitions, 1426 flow. Second operand has 6 states, 6 states have (on average 656.8333333333334) internal successors, (3941), 6 states have internal predecessors, (3941), 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) [2022-12-12 12:18:58,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:18:58,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 652 of 726 [2022-12-12 12:18:58,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:18:59,065 INFO L130 PetriNetUnfolder]: 93/1556 cut-off events. [2022-12-12 12:18:59,065 INFO L131 PetriNetUnfolder]: For 18/21 co-relation queries the response was YES. [2022-12-12 12:18:59,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 1556 events. 93/1556 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5158 event pairs, 18 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 295. Up to 49 conditions per place. [2022-12-12 12:18:59,073 INFO L137 encePairwiseOnDemand]: 716/726 looper letters, 54 selfloop transitions, 9 changer transitions 1/705 dead transitions. [2022-12-12 12:18:59,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 705 transitions, 1590 flow [2022-12-12 12:18:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 12:18:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 12:18:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5276 transitions. [2022-12-12 12:18:59,081 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9084022038567493 [2022-12-12 12:18:59,082 INFO L295 CegarLoopForPetriNet]: 671 programPoint places, 0 predicate places. [2022-12-12 12:18:59,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 671 places, 705 transitions, 1590 flow [2022-12-12 12:18:59,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 705 transitions, 1530 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-12-12 12:18:59,087 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 705 transitions, 1530 flow [2022-12-12 12:18:59,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 656.8333333333334) internal successors, (3941), 6 states have internal predecessors, (3941), 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) [2022-12-12 12:18:59,089 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:18:59,090 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:18:59,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 12:18:59,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 12:18:59,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:18:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:18:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2076573275, now seen corresponding path program 1 times [2022-12-12 12:18:59,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:18:59,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875509828] [2022-12-12 12:18:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:18:59,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:18:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:18:59,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 12:18:59,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:18:59,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875509828] [2022-12-12 12:18:59,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875509828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:18:59,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:18:59,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:18:59,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669319995] [2022-12-12 12:18:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:18:59,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:18:59,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:18:59,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:18:59,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:18:59,780 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 658 out of 726 [2022-12-12 12:18:59,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 705 transitions, 1530 flow. Second operand has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 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) [2022-12-12 12:18:59,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:18:59,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 658 of 726 [2022-12-12 12:18:59,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:19:00,287 INFO L130 PetriNetUnfolder]: 296/3292 cut-off events. [2022-12-12 12:19:00,287 INFO L131 PetriNetUnfolder]: For 250/256 co-relation queries the response was YES. [2022-12-12 12:19:00,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3292 events. 296/3292 cut-off events. For 250/256 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 19079 event pairs, 27 based on Foata normal form. 0/3077 useless extension candidates. Maximal degree in co-relation 306. Up to 125 conditions per place. [2022-12-12 12:19:00,299 INFO L137 encePairwiseOnDemand]: 718/726 looper letters, 55 selfloop transitions, 5 changer transitions 58/767 dead transitions. [2022-12-12 12:19:00,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 678 places, 767 transitions, 2130 flow [2022-12-12 12:19:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 12:19:00,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 12:19:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 7967 transitions. [2022-12-12 12:19:00,310 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.914485766758494 [2022-12-12 12:19:00,311 INFO L295 CegarLoopForPetriNet]: 671 programPoint places, 7 predicate places. [2022-12-12 12:19:00,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 678 places, 767 transitions, 2130 flow [2022-12-12 12:19:00,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 678 places, 767 transitions, 2064 flow, removed 33 selfloop flow, removed 0 redundant places. [2022-12-12 12:19:00,316 INFO L495 AbstractCegarLoop]: Abstraction has has 678 places, 767 transitions, 2064 flow [2022-12-12 12:19:00,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 662.6666666666666) internal successors, (3976), 6 states have internal predecessors, (3976), 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) [2022-12-12 12:19:00,318 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:19:00,318 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:19:00,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:19:00,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 12:19:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:19:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1949219657, now seen corresponding path program 1 times [2022-12-12 12:19:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:19:00,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615390155] [2022-12-12 12:19:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:19:00,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:19:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:19:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 12:19:01,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:19:01,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615390155] [2022-12-12 12:19:01,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615390155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:19:01,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:19:01,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-12 12:19:01,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096929471] [2022-12-12 12:19:01,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:19:01,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-12 12:19:01,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:19:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-12 12:19:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-12 12:19:01,342 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 726 [2022-12-12 12:19:01,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 678 places, 767 transitions, 2064 flow. Second operand has 12 states, 12 states have (on average 628.0) internal successors, (7536), 12 states have internal predecessors, (7536), 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) [2022-12-12 12:19:01,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:19:01,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 726 [2022-12-12 12:19:01,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:19:02,010 INFO L130 PetriNetUnfolder]: 260/2825 cut-off events. [2022-12-12 12:19:02,010 INFO L131 PetriNetUnfolder]: For 365/374 co-relation queries the response was YES. [2022-12-12 12:19:02,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3970 conditions, 2825 events. 260/2825 cut-off events. For 365/374 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14678 event pairs, 0 based on Foata normal form. 0/2658 useless extension candidates. Maximal degree in co-relation 856. Up to 127 conditions per place. [2022-12-12 12:19:02,023 INFO L137 encePairwiseOnDemand]: 714/726 looper letters, 0 selfloop transitions, 0 changer transitions 790/790 dead transitions. [2022-12-12 12:19:02,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 790 transitions, 2640 flow [2022-12-12 12:19:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:19:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:19:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 8185 transitions. [2022-12-12 12:19:02,035 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8672388217842764 [2022-12-12 12:19:02,037 INFO L295 CegarLoopForPetriNet]: 671 programPoint places, 17 predicate places. [2022-12-12 12:19:02,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 790 transitions, 2640 flow [2022-12-12 12:19:02,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 790 transitions, 2395 flow, removed 111 selfloop flow, removed 6 redundant places. [2022-12-12 12:19:02,043 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 790 transitions, 2395 flow [2022-12-12 12:19:02,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 628.0) internal successors, (7536), 12 states have internal predecessors, (7536), 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) [2022-12-12 12:19:02,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-12 12:19:02,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-12 12:19:02,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-12 12:19:02,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-12 12:19:02,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-12 12:19:02,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:19:02,052 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-12 12:19:02,056 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:19:02,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:19:02,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:19:02 BasicIcfg [2022-12-12 12:19:02,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:19:02,060 INFO L158 Benchmark]: Toolchain (without parser) took 16764.88ms. Allocated memory was 172.0MB in the beginning and 428.9MB in the end (delta: 256.9MB). Free memory was 136.1MB in the beginning and 137.3MB in the end (delta: -1.2MB). Peak memory consumption was 256.8MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,061 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:19:02,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 8752.80ms. Allocated memory was 172.0MB in the beginning and 242.2MB in the end (delta: 70.3MB). Free memory was 136.1MB in the beginning and 101.0MB in the end (delta: 35.1MB). Peak memory consumption was 115.3MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 161.98ms. Allocated memory is still 242.2MB. Free memory was 101.0MB in the beginning and 181.1MB in the end (delta: -80.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,065 INFO L158 Benchmark]: Boogie Preprocessor took 51.75ms. Allocated memory is still 242.2MB. Free memory was 181.1MB in the beginning and 175.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,065 INFO L158 Benchmark]: RCFGBuilder took 877.49ms. Allocated memory is still 242.2MB. Free memory was 175.9MB in the beginning and 115.0MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,065 INFO L158 Benchmark]: TraceAbstraction took 6914.35ms. Allocated memory was 242.2MB in the beginning and 428.9MB in the end (delta: 186.6MB). Free memory was 114.0MB in the beginning and 137.3MB in the end (delta: -23.2MB). Peak memory consumption was 162.9MB. Max. memory is 8.0GB. [2022-12-12 12:19:02,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 172.0MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 8752.80ms. Allocated memory was 172.0MB in the beginning and 242.2MB in the end (delta: 70.3MB). Free memory was 136.1MB in the beginning and 101.0MB in the end (delta: 35.1MB). Peak memory consumption was 115.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 161.98ms. Allocated memory is still 242.2MB. Free memory was 101.0MB in the beginning and 181.1MB in the end (delta: -80.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.75ms. Allocated memory is still 242.2MB. Free memory was 181.1MB in the beginning and 175.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 877.49ms. Allocated memory is still 242.2MB. Free memory was 175.9MB in the beginning and 115.0MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. * TraceAbstraction took 6914.35ms. Allocated memory was 242.2MB in the beginning and 428.9MB in the end (delta: 186.6MB). Free memory was 114.0MB in the beginning and 137.3MB in the end (delta: -23.2MB). Peak memory consumption was 162.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 783 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 627 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 496 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 786 IncrementalHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 131 mSDtfsCounter, 786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2395occurred in iteration=5, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 468 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1457 NumberOfCodeBlocks, 1457 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1451 ConstructedInterpolants, 0 QuantifiedInterpolants, 2289 SizeOfPredicates, 15 NumberOfNonLiveVariables, 903 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 12:19:02,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...