./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-2755261-m [2024-01-26 15:17:05,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:17:05,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:17:05,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:17:05,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:17:05,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:17:05,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:17:05,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:17:05,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:17:05,628 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:17:05,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:17:05,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:17:05,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:17:05,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:17:05,631 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:17:05,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:17:05,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:17:05,632 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:17:05,632 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:17:05,632 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:17:05,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:17:05,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:17:05,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:17:05,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:17:05,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:17:05,635 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:17:05,635 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:17:05,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:17:05,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:17:05,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:17:05,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:17:05,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:17:05,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:17:05,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:17:05,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:17:05,638 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:17:05,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:17:05,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:17:05,639 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:17:05,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:17:05,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:17:05,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:17:05,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:17:05,854 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:17:05,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-01-26 15:17:07,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:17:07,327 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:17:07,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-01-26 15:17:07,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56626f93c/bd4542fb515844b483e3ee6a45d845d3/FLAG6011e0703 [2024-01-26 15:17:07,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56626f93c/bd4542fb515844b483e3ee6a45d845d3 [2024-01-26 15:17:07,367 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:17:07,368 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:17:07,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml [2024-01-26 15:17:07,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:17:07,488 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:17:07,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:17:07,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:17:07,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:17:07,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:17:07" (1/2) ... [2024-01-26 15:17:07,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497caed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:17:07, skipping insertion in model container [2024-01-26 15:17:07,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:17:07" (1/2) ... [2024-01-26 15:17:07,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41158527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:17:07, skipping insertion in model container [2024-01-26 15:17:07,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:17:07" (2/2) ... [2024-01-26 15:17:07,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497caed0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:07, skipping insertion in model container [2024-01-26 15:17:07,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:17:07" (2/2) ... [2024-01-26 15:17:07,498 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:17:07,616 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:17:07,618 INFO L98 nessWitnessExtractor]: Location invariant before [L1756-L1761] (unsigned long )arg == 0UL [2024-01-26 15:17:07,618 INFO L98 nessWitnessExtractor]: Location invariant before [L1706-L1706] (unsigned long )arg == 0UL [2024-01-26 15:17:07,618 INFO L98 nessWitnessExtractor]: Location invariant before [L1793-L1793] (unsigned long )status == 0UL [2024-01-26 15:17:07,618 INFO L98 nessWitnessExtractor]: Location invariant before [L1776-L1776] pdev == 0 [2024-01-26 15:17:07,618 INFO L98 nessWitnessExtractor]: Location invariant before [L1776-L1776] ldv_usb_state == 0 [2024-01-26 15:17:07,619 INFO L98 nessWitnessExtractor]: Location invariant before [L1792-L1792] (unsigned long )status == 0UL [2024-01-26 15:17:07,619 INFO L98 nessWitnessExtractor]: Location invariant before [L1746-L1768] (unsigned long )arg == 0UL [2024-01-26 15:17:07,619 INFO L98 nessWitnessExtractor]: Location invariant before [L1749-L1749] (unsigned long )arg == 0UL [2024-01-26 15:17:07,619 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1711] (unsigned long )arg == 0UL [2024-01-26 15:17:07,619 INFO L98 nessWitnessExtractor]: Location invariant before [L1757-L1757] (unsigned long )arg == 0UL [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1734-L1734] error == 0 [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret <= 127 [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] -128 <= probe_ret [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] (unsigned long )arg == 0UL [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret <= 0 [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] -1 <= probe_ret [2024-01-26 15:17:07,620 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret == -1 || probe_ret == 0 [2024-01-26 15:17:07,621 INFO L98 nessWitnessExtractor]: Location invariant after [L1735-L1736] error == -1 [2024-01-26 15:17:07,621 INFO L98 nessWitnessExtractor]: Location invariant before [L1786-L1786] ldv_usb_state == 0 [2024-01-26 15:17:07,621 INFO L98 nessWitnessExtractor]: Location invariant before [L1786-L1786] pdev == 3 [2024-01-26 15:17:07,621 INFO L98 nessWitnessExtractor]: Location invariant before [L1726-L1726] (unsigned long )status == 0UL [2024-01-26 15:17:07,621 INFO L98 nessWitnessExtractor]: Location invariant before [L1743-L1743] (unsigned long )arg == 0UL [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant before [L1760-L1760] (unsigned long )arg == 0UL [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant before [L1752-L1752] probe_ret == 0 [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant before [L1752-L1752] (unsigned long )arg == 0UL [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] (unsigned long )arg == 0UL [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant after [L1770-L1771] (unsigned long )arg == 0UL [2024-01-26 15:17:07,622 INFO L98 nessWitnessExtractor]: Location invariant before [L1748-L1753] (unsigned long )arg == 0UL [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant before [L1780-L1780] pdev == 1 [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant before [L1780-L1780] ldv_usb_state == 0 [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Loop invariant at [L1745-L1769] (unsigned long )arg == 0UL [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] ((((((((((0 <= pdev && 1 <= pdev) && pdev <= 3) && pdev <= 127) && expression == 1) && ldv_usb_state == 0) && pdev % 2 == 1) && pdev != 0) && (pdev == 1 || pdev == 3)) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1)) [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 0 [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 1 [2024-01-26 15:17:07,623 INFO L98 nessWitnessExtractor]: Location invariant after [L1713-L1714] (unsigned long )arg == 0UL [2024-01-26 15:17:07,624 INFO L98 nessWitnessExtractor]: Location invariant before [L1777-L1777] pdev == 0 [2024-01-26 15:17:07,624 INFO L98 nessWitnessExtractor]: Location invariant before [L1777-L1777] ldv_usb_state == 0 [2024-01-26 15:17:07,624 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] -1 <= error [2024-01-26 15:17:07,625 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] -128 <= error [2024-01-26 15:17:07,625 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error <= 0 [2024-01-26 15:17:07,625 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error <= 127 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error == -1 || error == 0 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1779-L1782] ldv_usb_state == 0 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1779-L1782] pdev == 1 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1784-L1784] pdev == 3 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1784-L1784] ldv_usb_state == 0 [2024-01-26 15:17:07,626 INFO L98 nessWitnessExtractor]: Location invariant before [L1778-L1778] pdev == 1 [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant before [L1778-L1778] ldv_usb_state == 0 [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant before [L1772-L1772] (unsigned long )arg == 0UL [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant before [L1707-L1707] (unsigned long )arg == 0UL [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant before [L1763-L1763] (unsigned long )arg == 0UL [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant before [L1758-L1758] (unsigned long )arg == 0UL [2024-01-26 15:17:07,627 INFO L98 nessWitnessExtractor]: Location invariant after [L1788-L1794] (unsigned long )status == 0UL [2024-01-26 15:17:07,628 INFO L98 nessWitnessExtractor]: Location invariant before [L1791-L1791] (unsigned long )status == 0UL [2024-01-26 15:17:07,628 INFO L98 nessWitnessExtractor]: Location invariant before [L1764-L1766] (unsigned long )arg == 0UL [2024-01-26 15:17:07,629 INFO L98 nessWitnessExtractor]: Location invariant before [L1759-L1759] (unsigned long )arg == 0UL [2024-01-26 15:17:07,629 INFO L98 nessWitnessExtractor]: Location invariant before [L1785-L1785] pdev == 3 [2024-01-26 15:17:07,629 INFO L98 nessWitnessExtractor]: Location invariant before [L1785-L1785] ldv_usb_state == 0 [2024-01-26 15:17:07,629 INFO L98 nessWitnessExtractor]: Loop invariant at [L1704-L1712] (unsigned long )arg == 0UL [2024-01-26 15:17:07,630 INFO L98 nessWitnessExtractor]: Location invariant before [L1755-L1755] (unsigned long )arg == 0UL [2024-01-26 15:17:07,630 INFO L98 nessWitnessExtractor]: Location invariant before [L1783-L1783] pdev == 1 [2024-01-26 15:17:07,630 INFO L98 nessWitnessExtractor]: Location invariant before [L1783-L1783] ldv_usb_state == 0 [2024-01-26 15:17:07,630 INFO L98 nessWitnessExtractor]: Location invariant before [L1747-L1747] (unsigned long )arg == 0UL [2024-01-26 15:17:07,630 INFO L98 nessWitnessExtractor]: Location invariant before [L1773-L1773] (unsigned long )arg == 0UL [2024-01-26 15:17:07,678 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:17:08,188 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-01-26 15:17:08,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:17:08,255 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:17:08,382 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-01-26 15:17:08,383 WARN L424 MainDispatcher]: Unable to annotate void ldv_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();}}; return; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:17:08,495 WARN L424 MainDispatcher]: Unable to annotate void module_exit() { void *status; pthread_join(t1, &status); pthread_mutex_destroy(&mutex); pdev = 5; ldv_assert(pdev==5); } with a witness entry [2024-01-26 15:17:08,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:17:08,623 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:17:08,624 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08 WrapperNode [2024-01-26 15:17:08,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:17:08,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:17:08,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:17:08,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:17:08,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,676 INFO L138 Inliner]: procedures = 487, calls = 48, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 285 [2024-01-26 15:17:08,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:17:08,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:17:08,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:17:08,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:17:08,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,704 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 3, 2, 5, 4]. 26 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 1, 0, 5, 0]. The 4 writes are split as follows [0, 1, 1, 1, 0, 1]. [2024-01-26 15:17:08,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:17:08,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:17:08,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:17:08,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:17:08,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (1/1) ... [2024-01-26 15:17:08,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:17:08,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:17:08,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-26 15:17:08,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-26 15:17:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-01-26 15:17:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-01-26 15:17:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-01-26 15:17:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-01-26 15:17:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-01-26 15:17:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:17:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-01-26 15:17:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:17:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:17:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:17:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:17:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-26 15:17:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-26 15:17:08,800 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:17:09,039 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:17:09,040 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:17:09,387 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:17:09,387 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:17:09,539 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:17:09,540 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-26 15:17:09,541 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:17:09 BoogieIcfgContainer [2024-01-26 15:17:09,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:17:09,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:17:09,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:17:09,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:17:09,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:17:07" (1/4) ... [2024-01-26 15:17:09,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66361ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:17:09, skipping insertion in model container [2024-01-26 15:17:09,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:17:07" (2/4) ... [2024-01-26 15:17:09,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66361ee3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:17:09, skipping insertion in model container [2024-01-26 15:17:09,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:17:08" (3/4) ... [2024-01-26 15:17:09,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66361ee3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:17:09, skipping insertion in model container [2024-01-26 15:17:09,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:17:09" (4/4) ... [2024-01-26 15:17:09,549 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-01-26 15:17:09,562 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:17:09,563 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-26 15:17:09,563 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:17:09,639 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-01-26 15:17:09,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 308 transitions, 643 flow [2024-01-26 15:17:09,750 INFO L124 PetriNetUnfolderBase]: 30/306 cut-off events. [2024-01-26 15:17:09,750 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-26 15:17:09,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 306 events. 30/306 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 990 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 229. Up to 11 conditions per place. [2024-01-26 15:17:09,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 308 transitions, 643 flow [2024-01-26 15:17:09,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 204 transitions, 424 flow [2024-01-26 15:17:09,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:17:09,782 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=LoopHeads, 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;@76d36bf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:17:09,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2024-01-26 15:17:09,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:17:09,784 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:17:09,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:17:09,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:09,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:17:09,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:09,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:09,790 INFO L85 PathProgramCache]: Analyzing trace with hash 22942, now seen corresponding path program 1 times [2024-01-26 15:17:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:09,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906170971] [2024-01-26 15:17:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:09,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:10,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:10,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906170971] [2024-01-26 15:17:10,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906170971] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:10,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:10,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:17:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384957660] [2024-01-26 15:17:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:10,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:10,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:10,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 308 [2024-01-26 15:17:10,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 204 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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) [2024-01-26 15:17:10,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:10,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 308 [2024-01-26 15:17:10,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:11,137 INFO L124 PetriNetUnfolderBase]: 3383/8786 cut-off events. [2024-01-26 15:17:11,137 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-01-26 15:17:11,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13713 conditions, 8786 events. 3383/8786 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 77762 event pairs, 1502 based on Foata normal form. 539/7319 useless extension candidates. Maximal degree in co-relation 13197. Up to 2921 conditions per place. [2024-01-26 15:17:11,188 INFO L140 encePairwiseOnDemand]: 283/308 looper letters, 93 selfloop transitions, 5 changer transitions 1/210 dead transitions. [2024-01-26 15:17:11,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 210 transitions, 632 flow [2024-01-26 15:17:11,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-01-26 15:17:11,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7153679653679653 [2024-01-26 15:17:11,206 INFO L175 Difference]: Start difference. First operand has 190 places, 204 transitions, 424 flow. Second operand 3 states and 661 transitions. [2024-01-26 15:17:11,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 210 transitions, 632 flow [2024-01-26 15:17:11,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 210 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:11,216 INFO L231 Difference]: Finished difference. Result has 183 places, 188 transitions, 418 flow [2024-01-26 15:17:11,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=183, PETRI_TRANSITIONS=188} [2024-01-26 15:17:11,222 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -7 predicate places. [2024-01-26 15:17:11,222 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 188 transitions, 418 flow [2024-01-26 15:17:11,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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) [2024-01-26 15:17:11,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:11,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-26 15:17:11,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:17:11,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:11,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash 711948, now seen corresponding path program 1 times [2024-01-26 15:17:11,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:11,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754562531] [2024-01-26 15:17:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:11,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754562531] [2024-01-26 15:17:11,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754562531] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:11,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:11,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:17:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588375739] [2024-01-26 15:17:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:11,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:11,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:11,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-26 15:17:11,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 188 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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) [2024-01-26 15:17:11,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:11,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-26 15:17:11,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:11,999 INFO L124 PetriNetUnfolderBase]: 3030/7884 cut-off events. [2024-01-26 15:17:12,000 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-01-26 15:17:12,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12754 conditions, 7884 events. 3030/7884 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 69762 event pairs, 2380 based on Foata normal form. 0/6212 useless extension candidates. Maximal degree in co-relation 6459. Up to 4321 conditions per place. [2024-01-26 15:17:12,044 INFO L140 encePairwiseOnDemand]: 304/308 looper letters, 64 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-01-26 15:17:12,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 186 transitions, 546 flow [2024-01-26 15:17:12,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 665 transitions. [2024-01-26 15:17:12,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7196969696969697 [2024-01-26 15:17:12,047 INFO L175 Difference]: Start difference. First operand has 183 places, 188 transitions, 418 flow. Second operand 3 states and 665 transitions. [2024-01-26 15:17:12,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 186 transitions, 546 flow [2024-01-26 15:17:12,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 186 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:12,056 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 408 flow [2024-01-26 15:17:12,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-01-26 15:17:12,057 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2024-01-26 15:17:12,057 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 408 flow [2024-01-26 15:17:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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) [2024-01-26 15:17:12,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:12,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:12,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:17:12,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:12,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash 389849544, now seen corresponding path program 1 times [2024-01-26 15:17:12,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:12,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127737828] [2024-01-26 15:17:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:12,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127737828] [2024-01-26 15:17:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127737828] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:12,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:17:12,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353285020] [2024-01-26 15:17:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:12,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:12,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:12,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:12,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 308 [2024-01-26 15:17:12,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2024-01-26 15:17:12,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:12,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 308 [2024-01-26 15:17:12,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:13,066 INFO L124 PetriNetUnfolderBase]: 4637/11959 cut-off events. [2024-01-26 15:17:13,067 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-01-26 15:17:13,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19073 conditions, 11959 events. 4637/11959 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 104914 event pairs, 1321 based on Foata normal form. 0/9437 useless extension candidates. Maximal degree in co-relation 19057. Up to 4354 conditions per place. [2024-01-26 15:17:13,111 INFO L140 encePairwiseOnDemand]: 299/308 looper letters, 97 selfloop transitions, 5 changer transitions 0/218 dead transitions. [2024-01-26 15:17:13,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 218 transitions, 689 flow [2024-01-26 15:17:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:13,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-01-26 15:17:13,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7543290043290043 [2024-01-26 15:17:13,114 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 408 flow. Second operand 3 states and 697 transitions. [2024-01-26 15:17:13,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 218 transitions, 689 flow [2024-01-26 15:17:13,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 218 transitions, 685 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:13,121 INFO L231 Difference]: Finished difference. Result has 177 places, 185 transitions, 423 flow [2024-01-26 15:17:13,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=423, PETRI_PLACES=177, PETRI_TRANSITIONS=185} [2024-01-26 15:17:13,123 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -13 predicate places. [2024-01-26 15:17:13,127 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 185 transitions, 423 flow [2024-01-26 15:17:13,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2024-01-26 15:17:13,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:13,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:13,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:17:13,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:13,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash 983284175, now seen corresponding path program 1 times [2024-01-26 15:17:13,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:13,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882786327] [2024-01-26 15:17:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:13,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:13,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:13,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882786327] [2024-01-26 15:17:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882786327] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:13,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:13,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:13,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895122563] [2024-01-26 15:17:13,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:13,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:13,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:13,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:13,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 308 [2024-01-26 15:17:13,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 185 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 192.25) internal successors, (769), 4 states have internal predecessors, (769), 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) [2024-01-26 15:17:13,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:13,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 308 [2024-01-26 15:17:13,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:14,166 INFO L124 PetriNetUnfolderBase]: 4663/11992 cut-off events. [2024-01-26 15:17:14,166 INFO L125 PetriNetUnfolderBase]: For 311/347 co-relation queries the response was YES. [2024-01-26 15:17:14,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19651 conditions, 11992 events. 4663/11992 cut-off events. For 311/347 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 105259 event pairs, 1325 based on Foata normal form. 12/9479 useless extension candidates. Maximal degree in co-relation 7595. Up to 4379 conditions per place. [2024-01-26 15:17:14,240 INFO L140 encePairwiseOnDemand]: 295/308 looper letters, 105 selfloop transitions, 11 changer transitions 1/225 dead transitions. [2024-01-26 15:17:14,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 225 transitions, 752 flow [2024-01-26 15:17:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1074 transitions. [2024-01-26 15:17:14,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6974025974025974 [2024-01-26 15:17:14,243 INFO L175 Difference]: Start difference. First operand has 177 places, 185 transitions, 423 flow. Second operand 5 states and 1074 transitions. [2024-01-26 15:17:14,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 225 transitions, 752 flow [2024-01-26 15:17:14,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 225 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:17:14,248 INFO L231 Difference]: Finished difference. Result has 176 places, 181 transitions, 432 flow [2024-01-26 15:17:14,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=176, PETRI_TRANSITIONS=181} [2024-01-26 15:17:14,249 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2024-01-26 15:17:14,250 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 181 transitions, 432 flow [2024-01-26 15:17:14,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.25) internal successors, (769), 4 states have internal predecessors, (769), 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) [2024-01-26 15:17:14,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:14,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:14,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:17:14,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:14,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash -179782835, now seen corresponding path program 1 times [2024-01-26 15:17:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:14,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566742933] [2024-01-26 15:17:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:14,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566742933] [2024-01-26 15:17:14,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566742933] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:14,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:14,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:17:14,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614297234] [2024-01-26 15:17:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:14,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:14,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:14,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-26 15:17:14,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 181 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2024-01-26 15:17:14,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:14,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-26 15:17:14,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:15,041 INFO L124 PetriNetUnfolderBase]: 4637/11910 cut-off events. [2024-01-26 15:17:15,041 INFO L125 PetriNetUnfolderBase]: For 500/536 co-relation queries the response was YES. [2024-01-26 15:17:15,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19540 conditions, 11910 events. 4637/11910 cut-off events. For 500/536 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 104318 event pairs, 3621 based on Foata normal form. 2/9389 useless extension candidates. Maximal degree in co-relation 7596. Up to 6586 conditions per place. [2024-01-26 15:17:15,112 INFO L140 encePairwiseOnDemand]: 304/308 looper letters, 64 selfloop transitions, 0 changer transitions 9/178 dead transitions. [2024-01-26 15:17:15,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 178 transitions, 564 flow [2024-01-26 15:17:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2024-01-26 15:17:15,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175324675324676 [2024-01-26 15:17:15,114 INFO L175 Difference]: Start difference. First operand has 176 places, 181 transitions, 432 flow. Second operand 3 states and 663 transitions. [2024-01-26 15:17:15,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 178 transitions, 564 flow [2024-01-26 15:17:15,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 178 transitions, 544 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:17:15,118 INFO L231 Difference]: Finished difference. Result has 171 places, 169 transitions, 386 flow [2024-01-26 15:17:15,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=171, PETRI_TRANSITIONS=169} [2024-01-26 15:17:15,120 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -19 predicate places. [2024-01-26 15:17:15,120 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 169 transitions, 386 flow [2024-01-26 15:17:15,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2024-01-26 15:17:15,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:15,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:15,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:17:15,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:15,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1243568967, now seen corresponding path program 1 times [2024-01-26 15:17:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:15,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968551494] [2024-01-26 15:17:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:15,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:15,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:15,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968551494] [2024-01-26 15:17:15,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968551494] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:15,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:15,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:15,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557859187] [2024-01-26 15:17:15,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:15,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:15,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:15,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:15,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:15,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 308 [2024-01-26 15:17:15,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 169 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 187.75) internal successors, (751), 4 states have internal predecessors, (751), 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) [2024-01-26 15:17:15,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:15,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 308 [2024-01-26 15:17:15,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:15,963 INFO L124 PetriNetUnfolderBase]: 4489/10765 cut-off events. [2024-01-26 15:17:15,964 INFO L125 PetriNetUnfolderBase]: For 164/170 co-relation queries the response was YES. [2024-01-26 15:17:15,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17932 conditions, 10765 events. 4489/10765 cut-off events. For 164/170 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 88286 event pairs, 1679 based on Foata normal form. 900/9620 useless extension candidates. Maximal degree in co-relation 17926. Up to 6350 conditions per place. [2024-01-26 15:17:16,009 INFO L140 encePairwiseOnDemand]: 286/308 looper letters, 65 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-26 15:17:16,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 154 transitions, 490 flow [2024-01-26 15:17:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 825 transitions. [2024-01-26 15:17:16,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-01-26 15:17:16,011 INFO L175 Difference]: Start difference. First operand has 171 places, 169 transitions, 386 flow. Second operand 4 states and 825 transitions. [2024-01-26 15:17:16,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 154 transitions, 490 flow [2024-01-26 15:17:16,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 154 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-26 15:17:16,014 INFO L231 Difference]: Finished difference. Result has 144 places, 149 transitions, 350 flow [2024-01-26 15:17:16,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=144, PETRI_TRANSITIONS=149} [2024-01-26 15:17:16,015 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -46 predicate places. [2024-01-26 15:17:16,015 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 149 transitions, 350 flow [2024-01-26 15:17:16,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.75) internal successors, (751), 4 states have internal predecessors, (751), 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) [2024-01-26 15:17:16,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:16,015 INFO L208 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] [2024-01-26 15:17:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:17:16,016 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:16,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash -225870301, now seen corresponding path program 1 times [2024-01-26 15:17:16,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:16,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497148932] [2024-01-26 15:17:16,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:16,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:16,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:16,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497148932] [2024-01-26 15:17:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497148932] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:16,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014751314] [2024-01-26 15:17:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:16,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:16,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 308 [2024-01-26 15:17:16,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 149 transitions, 350 flow. Second operand has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2024-01-26 15:17:16,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:16,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 308 [2024-01-26 15:17:16,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:17,788 INFO L124 PetriNetUnfolderBase]: 9612/23573 cut-off events. [2024-01-26 15:17:17,788 INFO L125 PetriNetUnfolderBase]: For 540/540 co-relation queries the response was YES. [2024-01-26 15:17:17,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38789 conditions, 23573 events. 9612/23573 cut-off events. For 540/540 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 220402 event pairs, 4772 based on Foata normal form. 660/20091 useless extension candidates. Maximal degree in co-relation 38782. Up to 8157 conditions per place. [2024-01-26 15:17:17,885 INFO L140 encePairwiseOnDemand]: 298/308 looper letters, 126 selfloop transitions, 4 changer transitions 0/212 dead transitions. [2024-01-26 15:17:17,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 212 transitions, 759 flow [2024-01-26 15:17:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 931 transitions. [2024-01-26 15:17:17,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7556818181818182 [2024-01-26 15:17:17,887 INFO L175 Difference]: Start difference. First operand has 144 places, 149 transitions, 350 flow. Second operand 4 states and 931 transitions. [2024-01-26 15:17:17,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 212 transitions, 759 flow [2024-01-26 15:17:17,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 212 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:17,892 INFO L231 Difference]: Finished difference. Result has 147 places, 152 transitions, 385 flow [2024-01-26 15:17:17,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=385, PETRI_PLACES=147, PETRI_TRANSITIONS=152} [2024-01-26 15:17:17,893 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -43 predicate places. [2024-01-26 15:17:17,893 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 152 transitions, 385 flow [2024-01-26 15:17:17,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2024-01-26 15:17:17,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:17,894 INFO L208 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] [2024-01-26 15:17:17,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:17:17,894 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:17,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:17,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1588042865, now seen corresponding path program 1 times [2024-01-26 15:17:17,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:17,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742085916] [2024-01-26 15:17:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:17,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:17,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742085916] [2024-01-26 15:17:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742085916] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:17,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622211747] [2024-01-26 15:17:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:17,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:17,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:18,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-26 15:17:18,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 152 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 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) [2024-01-26 15:17:18,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:18,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-26 15:17:18,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:19,884 INFO L124 PetriNetUnfolderBase]: 9348/23173 cut-off events. [2024-01-26 15:17:19,885 INFO L125 PetriNetUnfolderBase]: For 1262/1262 co-relation queries the response was YES. [2024-01-26 15:17:19,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39380 conditions, 23173 events. 9348/23173 cut-off events. For 1262/1262 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 209082 event pairs, 3035 based on Foata normal form. 700/19935 useless extension candidates. Maximal degree in co-relation 39371. Up to 11275 conditions per place. [2024-01-26 15:17:19,979 INFO L140 encePairwiseOnDemand]: 300/308 looper letters, 121 selfloop transitions, 3 changer transitions 2/207 dead transitions. [2024-01-26 15:17:19,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 207 transitions, 792 flow [2024-01-26 15:17:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 919 transitions. [2024-01-26 15:17:19,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7459415584415584 [2024-01-26 15:17:19,982 INFO L175 Difference]: Start difference. First operand has 147 places, 152 transitions, 385 flow. Second operand 4 states and 919 transitions. [2024-01-26 15:17:19,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 207 transitions, 792 flow [2024-01-26 15:17:19,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 207 transitions, 786 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:17:19,992 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 382 flow [2024-01-26 15:17:19,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=382, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2024-01-26 15:17:19,992 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -47 predicate places. [2024-01-26 15:17:19,993 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 382 flow [2024-01-26 15:17:19,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.25) internal successors, (813), 4 states have internal predecessors, (813), 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) [2024-01-26 15:17:19,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:19,993 INFO L208 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] [2024-01-26 15:17:19,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 15:17:19,994 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:19,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1984774510, now seen corresponding path program 1 times [2024-01-26 15:17:19,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:19,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417317365] [2024-01-26 15:17:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:19,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417317365] [2024-01-26 15:17:20,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417317365] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:20,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877270727] [2024-01-26 15:17:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:20,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:20,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:20,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:20,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-26 15:17:20,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 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) [2024-01-26 15:17:20,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:20,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-26 15:17:20,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:21,507 INFO L124 PetriNetUnfolderBase]: 8247/20179 cut-off events. [2024-01-26 15:17:21,508 INFO L125 PetriNetUnfolderBase]: For 2091/2097 co-relation queries the response was YES. [2024-01-26 15:17:21,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34771 conditions, 20179 events. 8247/20179 cut-off events. For 2091/2097 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 180668 event pairs, 3664 based on Foata normal form. 720/17524 useless extension candidates. Maximal degree in co-relation 34762. Up to 6319 conditions per place. [2024-01-26 15:17:21,727 INFO L140 encePairwiseOnDemand]: 297/308 looper letters, 122 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2024-01-26 15:17:21,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 201 transitions, 757 flow [2024-01-26 15:17:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:21,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 922 transitions. [2024-01-26 15:17:21,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7483766233766234 [2024-01-26 15:17:21,730 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 382 flow. Second operand 4 states and 922 transitions. [2024-01-26 15:17:21,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 201 transitions, 757 flow [2024-01-26 15:17:21,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 201 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:17:21,739 INFO L231 Difference]: Finished difference. Result has 141 places, 142 transitions, 379 flow [2024-01-26 15:17:21,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=141, PETRI_TRANSITIONS=142} [2024-01-26 15:17:21,739 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -49 predicate places. [2024-01-26 15:17:21,740 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 142 transitions, 379 flow [2024-01-26 15:17:21,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 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) [2024-01-26 15:17:21,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:21,740 INFO L208 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] [2024-01-26 15:17:21,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-26 15:17:21,741 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:21,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash 492841806, now seen corresponding path program 1 times [2024-01-26 15:17:21,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891837297] [2024-01-26 15:17:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:21,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891837297] [2024-01-26 15:17:21,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891837297] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:21,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:21,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:21,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845837861] [2024-01-26 15:17:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:21,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:21,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:21,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 308 [2024-01-26 15:17:21,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 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) [2024-01-26 15:17:21,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:21,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 308 [2024-01-26 15:17:21,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:23,762 INFO L124 PetriNetUnfolderBase]: 10286/22369 cut-off events. [2024-01-26 15:17:23,762 INFO L125 PetriNetUnfolderBase]: For 3548/3548 co-relation queries the response was YES. [2024-01-26 15:17:23,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41182 conditions, 22369 events. 10286/22369 cut-off events. For 3548/3548 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 188933 event pairs, 6298 based on Foata normal form. 0/18865 useless extension candidates. Maximal degree in co-relation 41170. Up to 11451 conditions per place. [2024-01-26 15:17:23,860 INFO L140 encePairwiseOnDemand]: 299/308 looper letters, 119 selfloop transitions, 11 changer transitions 0/199 dead transitions. [2024-01-26 15:17:23,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 199 transitions, 760 flow [2024-01-26 15:17:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1109 transitions. [2024-01-26 15:17:23,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7201298701298702 [2024-01-26 15:17:23,863 INFO L175 Difference]: Start difference. First operand has 141 places, 142 transitions, 379 flow. Second operand 5 states and 1109 transitions. [2024-01-26 15:17:23,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 199 transitions, 760 flow [2024-01-26 15:17:23,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 199 transitions, 754 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-26 15:17:23,870 INFO L231 Difference]: Finished difference. Result has 148 places, 148 transitions, 447 flow [2024-01-26 15:17:23,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=447, PETRI_PLACES=148, PETRI_TRANSITIONS=148} [2024-01-26 15:17:23,870 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -42 predicate places. [2024-01-26 15:17:23,871 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 148 transitions, 447 flow [2024-01-26 15:17:23,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.5) internal successors, (806), 4 states have internal predecessors, (806), 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) [2024-01-26 15:17:23,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:23,871 INFO L208 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] [2024-01-26 15:17:23,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-26 15:17:23,872 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:23,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:23,872 INFO L85 PathProgramCache]: Analyzing trace with hash -913197212, now seen corresponding path program 1 times [2024-01-26 15:17:23,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:23,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198294726] [2024-01-26 15:17:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:23,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:23,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:23,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198294726] [2024-01-26 15:17:23,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198294726] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:23,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:23,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:23,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470091130] [2024-01-26 15:17:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:23,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:23,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:23,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 308 [2024-01-26 15:17:23,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 148 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 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) [2024-01-26 15:17:23,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:23,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 308 [2024-01-26 15:17:23,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:25,547 INFO L124 PetriNetUnfolderBase]: 8268/18194 cut-off events. [2024-01-26 15:17:25,547 INFO L125 PetriNetUnfolderBase]: For 5572/5728 co-relation queries the response was YES. [2024-01-26 15:17:25,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36477 conditions, 18194 events. 8268/18194 cut-off events. For 5572/5728 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 154506 event pairs, 5683 based on Foata normal form. 804/17154 useless extension candidates. Maximal degree in co-relation 36462. Up to 9625 conditions per place. [2024-01-26 15:17:25,629 INFO L140 encePairwiseOnDemand]: 300/308 looper letters, 122 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-01-26 15:17:25,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 195 transitions, 836 flow [2024-01-26 15:17:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 913 transitions. [2024-01-26 15:17:25,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7410714285714286 [2024-01-26 15:17:25,635 INFO L175 Difference]: Start difference. First operand has 148 places, 148 transitions, 447 flow. Second operand 4 states and 913 transitions. [2024-01-26 15:17:25,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 195 transitions, 836 flow [2024-01-26 15:17:25,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 195 transitions, 823 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-01-26 15:17:25,700 INFO L231 Difference]: Finished difference. Result has 151 places, 147 transitions, 451 flow [2024-01-26 15:17:25,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=151, PETRI_TRANSITIONS=147} [2024-01-26 15:17:25,710 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -39 predicate places. [2024-01-26 15:17:25,711 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 147 transitions, 451 flow [2024-01-26 15:17:25,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 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) [2024-01-26 15:17:25,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:25,711 INFO L208 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] [2024-01-26 15:17:25,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-26 15:17:25,712 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:25,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:25,712 INFO L85 PathProgramCache]: Analyzing trace with hash 167905438, now seen corresponding path program 1 times [2024-01-26 15:17:25,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:25,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504076275] [2024-01-26 15:17:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:25,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:25,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504076275] [2024-01-26 15:17:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504076275] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842471023] [2024-01-26 15:17:25,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:25,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:25,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:25,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:25,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:25,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-26 15:17:25,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 147 transitions, 451 flow. Second operand has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2024-01-26 15:17:25,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:25,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-26 15:17:25,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:27,321 INFO L124 PetriNetUnfolderBase]: 8010/18305 cut-off events. [2024-01-26 15:17:27,321 INFO L125 PetriNetUnfolderBase]: For 6320/6554 co-relation queries the response was YES. [2024-01-26 15:17:27,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36747 conditions, 18305 events. 8010/18305 cut-off events. For 6320/6554 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 155624 event pairs, 2170 based on Foata normal form. 936/17253 useless extension candidates. Maximal degree in co-relation 36731. Up to 5370 conditions per place. [2024-01-26 15:17:27,409 INFO L140 encePairwiseOnDemand]: 298/308 looper letters, 146 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2024-01-26 15:17:27,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 220 transitions, 968 flow [2024-01-26 15:17:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:27,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1131 transitions. [2024-01-26 15:17:27,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7344155844155844 [2024-01-26 15:17:27,412 INFO L175 Difference]: Start difference. First operand has 151 places, 147 transitions, 451 flow. Second operand 5 states and 1131 transitions. [2024-01-26 15:17:27,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 220 transitions, 968 flow [2024-01-26 15:17:27,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 220 transitions, 962 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:27,448 INFO L231 Difference]: Finished difference. Result has 150 places, 144 transitions, 467 flow [2024-01-26 15:17:27,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=467, PETRI_PLACES=150, PETRI_TRANSITIONS=144} [2024-01-26 15:17:27,449 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -40 predicate places. [2024-01-26 15:17:27,449 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 144 transitions, 467 flow [2024-01-26 15:17:27,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2024-01-26 15:17:27,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:27,450 INFO L208 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] [2024-01-26 15:17:27,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-26 15:17:27,450 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:27,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1476709696, now seen corresponding path program 1 times [2024-01-26 15:17:27,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:27,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655608528] [2024-01-26 15:17:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:27,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:27,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:27,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655608528] [2024-01-26 15:17:27,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655608528] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:27,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:27,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:27,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440594004] [2024-01-26 15:17:27,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:27,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:27,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:27,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:27,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:27,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-26 15:17:27,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 144 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2024-01-26 15:17:27,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:27,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-26 15:17:27,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:29,149 INFO L124 PetriNetUnfolderBase]: 7828/16830 cut-off events. [2024-01-26 15:17:29,149 INFO L125 PetriNetUnfolderBase]: For 9094/9280 co-relation queries the response was YES. [2024-01-26 15:17:29,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35849 conditions, 16830 events. 7828/16830 cut-off events. For 9094/9280 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 135841 event pairs, 5532 based on Foata normal form. 36/15006 useless extension candidates. Maximal degree in co-relation 35830. Up to 10150 conditions per place. [2024-01-26 15:17:29,216 INFO L140 encePairwiseOnDemand]: 305/308 looper letters, 103 selfloop transitions, 5 changer transitions 2/178 dead transitions. [2024-01-26 15:17:29,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 178 transitions, 829 flow [2024-01-26 15:17:29,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-01-26 15:17:29,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2024-01-26 15:17:29,231 INFO L175 Difference]: Start difference. First operand has 150 places, 144 transitions, 467 flow. Second operand 3 states and 702 transitions. [2024-01-26 15:17:29,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 178 transitions, 829 flow [2024-01-26 15:17:29,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 178 transitions, 825 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-01-26 15:17:29,262 INFO L231 Difference]: Finished difference. Result has 150 places, 141 transitions, 469 flow [2024-01-26 15:17:29,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=150, PETRI_TRANSITIONS=141} [2024-01-26 15:17:29,263 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -40 predicate places. [2024-01-26 15:17:29,263 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 141 transitions, 469 flow [2024-01-26 15:17:29,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2024-01-26 15:17:29,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:29,263 INFO L208 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] [2024-01-26 15:17:29,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-26 15:17:29,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:29,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1385237596, now seen corresponding path program 1 times [2024-01-26 15:17:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:29,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852765076] [2024-01-26 15:17:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:29,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852765076] [2024-01-26 15:17:29,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852765076] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:29,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:29,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:29,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268787303] [2024-01-26 15:17:29,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:29,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-26 15:17:29,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:29,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-26 15:17:29,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-26 15:17:29,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 308 [2024-01-26 15:17:29,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 141 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 209.6) internal successors, (1048), 5 states have internal predecessors, (1048), 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) [2024-01-26 15:17:29,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:29,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 308 [2024-01-26 15:17:29,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:30,991 INFO L124 PetriNetUnfolderBase]: 7348/16529 cut-off events. [2024-01-26 15:17:30,991 INFO L125 PetriNetUnfolderBase]: For 9204/9378 co-relation queries the response was YES. [2024-01-26 15:17:31,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35451 conditions, 16529 events. 7348/16529 cut-off events. For 9204/9378 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 138139 event pairs, 5268 based on Foata normal form. 36/14803 useless extension candidates. Maximal degree in co-relation 35431. Up to 9588 conditions per place. [2024-01-26 15:17:31,069 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 108 selfloop transitions, 4 changer transitions 1/181 dead transitions. [2024-01-26 15:17:31,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 181 transitions, 823 flow [2024-01-26 15:17:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1122 transitions. [2024-01-26 15:17:31,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-01-26 15:17:31,072 INFO L175 Difference]: Start difference. First operand has 150 places, 141 transitions, 469 flow. Second operand 5 states and 1122 transitions. [2024-01-26 15:17:31,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 181 transitions, 823 flow [2024-01-26 15:17:31,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 181 transitions, 795 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:17:31,113 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 465 flow [2024-01-26 15:17:31,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=465, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2024-01-26 15:17:31,114 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -39 predicate places. [2024-01-26 15:17:31,114 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 465 flow [2024-01-26 15:17:31,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 209.6) internal successors, (1048), 5 states have internal predecessors, (1048), 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) [2024-01-26 15:17:31,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:31,115 INFO L208 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] [2024-01-26 15:17:31,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-26 15:17:31,115 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:31,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash -7306655, now seen corresponding path program 1 times [2024-01-26 15:17:31,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:31,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146818097] [2024-01-26 15:17:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:31,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:31,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:31,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146818097] [2024-01-26 15:17:31,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146818097] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:31,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-26 15:17:31,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255267804] [2024-01-26 15:17:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:31,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 15:17:31,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:31,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 15:17:31,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-26 15:17:31,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-26 15:17:31,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 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) [2024-01-26 15:17:31,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:31,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-26 15:17:31,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:33,242 INFO L124 PetriNetUnfolderBase]: 7348/16479 cut-off events. [2024-01-26 15:17:33,242 INFO L125 PetriNetUnfolderBase]: For 8094/8268 co-relation queries the response was YES. [2024-01-26 15:17:33,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35225 conditions, 16479 events. 7348/16479 cut-off events. For 8094/8268 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 137244 event pairs, 5268 based on Foata normal form. 86/14803 useless extension candidates. Maximal degree in co-relation 35205. Up to 9588 conditions per place. [2024-01-26 15:17:33,329 INFO L140 encePairwiseOnDemand]: 302/308 looper letters, 118 selfloop transitions, 6 changer transitions 1/192 dead transitions. [2024-01-26 15:17:33,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 192 transitions, 859 flow [2024-01-26 15:17:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-26 15:17:33,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-26 15:17:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1332 transitions. [2024-01-26 15:17:33,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7207792207792207 [2024-01-26 15:17:33,332 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 465 flow. Second operand 6 states and 1332 transitions. [2024-01-26 15:17:33,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 192 transitions, 859 flow [2024-01-26 15:17:33,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 192 transitions, 851 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:17:33,379 INFO L231 Difference]: Finished difference. Result has 151 places, 139 transitions, 467 flow [2024-01-26 15:17:33,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=151, PETRI_TRANSITIONS=139} [2024-01-26 15:17:33,380 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -39 predicate places. [2024-01-26 15:17:33,380 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 139 transitions, 467 flow [2024-01-26 15:17:33,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 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) [2024-01-26 15:17:33,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:33,381 INFO L208 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] [2024-01-26 15:17:33,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-26 15:17:33,381 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:33,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash -226505603, now seen corresponding path program 1 times [2024-01-26 15:17:33,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347902532] [2024-01-26 15:17:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:33,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347902532] [2024-01-26 15:17:33,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347902532] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:33,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:33,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 15:17:33,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134300779] [2024-01-26 15:17:33,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:33,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 15:17:33,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:33,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 15:17:33,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-26 15:17:33,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-26 15:17:33,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 139 transitions, 467 flow. Second operand has 7 states, 7 states have (on average 207.57142857142858) internal successors, (1453), 7 states have internal predecessors, (1453), 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) [2024-01-26 15:17:33,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:33,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-26 15:17:33,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:35,366 INFO L124 PetriNetUnfolderBase]: 7348/16457 cut-off events. [2024-01-26 15:17:35,366 INFO L125 PetriNetUnfolderBase]: For 8094/8268 co-relation queries the response was YES. [2024-01-26 15:17:35,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35253 conditions, 16457 events. 7348/16457 cut-off events. For 8094/8268 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 136845 event pairs, 5266 based on Foata normal form. 36/14729 useless extension candidates. Maximal degree in co-relation 35233. Up to 9588 conditions per place. [2024-01-26 15:17:35,433 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 128 selfloop transitions, 7 changer transitions 1/202 dead transitions. [2024-01-26 15:17:35,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 202 transitions, 911 flow [2024-01-26 15:17:35,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 15:17:35,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-26 15:17:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1547 transitions. [2024-01-26 15:17:35,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175324675324676 [2024-01-26 15:17:35,436 INFO L175 Difference]: Start difference. First operand has 151 places, 139 transitions, 467 flow. Second operand 7 states and 1547 transitions. [2024-01-26 15:17:35,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 202 transitions, 911 flow [2024-01-26 15:17:35,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 202 transitions, 899 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-26 15:17:35,486 INFO L231 Difference]: Finished difference. Result has 151 places, 138 transitions, 467 flow [2024-01-26 15:17:35,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=467, PETRI_PLACES=151, PETRI_TRANSITIONS=138} [2024-01-26 15:17:35,487 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -39 predicate places. [2024-01-26 15:17:35,487 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 138 transitions, 467 flow [2024-01-26 15:17:35,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 207.57142857142858) internal successors, (1453), 7 states have internal predecessors, (1453), 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) [2024-01-26 15:17:35,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:35,488 INFO L208 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] [2024-01-26 15:17:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-26 15:17:35,488 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:35,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:35,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1371473325, now seen corresponding path program 1 times [2024-01-26 15:17:35,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:35,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765693541] [2024-01-26 15:17:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:35,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:35,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:35,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765693541] [2024-01-26 15:17:35,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765693541] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:35,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:35,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759036521] [2024-01-26 15:17:35,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:35,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:35,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:35,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:35,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 308 [2024-01-26 15:17:35,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 138 transitions, 467 flow. Second operand has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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) [2024-01-26 15:17:35,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:35,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 308 [2024-01-26 15:17:35,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:37,409 INFO L124 PetriNetUnfolderBase]: 7762/17091 cut-off events. [2024-01-26 15:17:37,410 INFO L125 PetriNetUnfolderBase]: For 9107/9239 co-relation queries the response was YES. [2024-01-26 15:17:37,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36793 conditions, 17091 events. 7762/17091 cut-off events. For 9107/9239 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 141237 event pairs, 6194 based on Foata normal form. 0/15265 useless extension candidates. Maximal degree in co-relation 36773. Up to 11332 conditions per place. [2024-01-26 15:17:37,501 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 102 selfloop transitions, 8 changer transitions 4/174 dead transitions. [2024-01-26 15:17:37,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 174 transitions, 787 flow [2024-01-26 15:17:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:37,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:37,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1076 transitions. [2024-01-26 15:17:37,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6987012987012987 [2024-01-26 15:17:37,504 INFO L175 Difference]: Start difference. First operand has 151 places, 138 transitions, 467 flow. Second operand 5 states and 1076 transitions. [2024-01-26 15:17:37,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 174 transitions, 787 flow [2024-01-26 15:17:37,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 174 transitions, 771 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-26 15:17:37,565 INFO L231 Difference]: Finished difference. Result has 153 places, 141 transitions, 508 flow [2024-01-26 15:17:37,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=508, PETRI_PLACES=153, PETRI_TRANSITIONS=141} [2024-01-26 15:17:37,566 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -37 predicate places. [2024-01-26 15:17:37,566 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 141 transitions, 508 flow [2024-01-26 15:17:37,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 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) [2024-01-26 15:17:37,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:37,567 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:37,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-26 15:17:37,567 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:37,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash 191793384, now seen corresponding path program 1 times [2024-01-26 15:17:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:37,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626019130] [2024-01-26 15:17:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:37,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:37,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626019130] [2024-01-26 15:17:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626019130] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:37,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:37,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:17:37,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3290241] [2024-01-26 15:17:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:37,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:17:37,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:17:37,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:17:37,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 308 [2024-01-26 15:17:37,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 141 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2024-01-26 15:17:37,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:37,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 308 [2024-01-26 15:17:37,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:38,653 INFO L124 PetriNetUnfolderBase]: 3961/8758 cut-off events. [2024-01-26 15:17:38,653 INFO L125 PetriNetUnfolderBase]: For 4914/4914 co-relation queries the response was YES. [2024-01-26 15:17:38,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17508 conditions, 8758 events. 3961/8758 cut-off events. For 4914/4914 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 62061 event pairs, 1517 based on Foata normal form. 360/8041 useless extension candidates. Maximal degree in co-relation 17485. Up to 2846 conditions per place. [2024-01-26 15:17:38,697 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 81 selfloop transitions, 2 changer transitions 19/146 dead transitions. [2024-01-26 15:17:38,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 659 flow [2024-01-26 15:17:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:17:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:17:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2024-01-26 15:17:38,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175324675324676 [2024-01-26 15:17:38,699 INFO L175 Difference]: Start difference. First operand has 153 places, 141 transitions, 508 flow. Second operand 3 states and 663 transitions. [2024-01-26 15:17:38,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 659 flow [2024-01-26 15:17:38,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 146 transitions, 585 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-01-26 15:17:38,712 INFO L231 Difference]: Finished difference. Result has 133 places, 105 transitions, 292 flow [2024-01-26 15:17:38,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=133, PETRI_TRANSITIONS=105} [2024-01-26 15:17:38,713 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -57 predicate places. [2024-01-26 15:17:38,713 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 105 transitions, 292 flow [2024-01-26 15:17:38,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 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) [2024-01-26 15:17:38,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:38,714 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:38,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-01-26 15:17:38,714 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:38,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash 239914524, now seen corresponding path program 1 times [2024-01-26 15:17:38,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:38,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775722302] [2024-01-26 15:17:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:38,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:17:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:38,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775722302] [2024-01-26 15:17:38,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775722302] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:38,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:38,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:38,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624263927] [2024-01-26 15:17:38,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:38,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-26 15:17:38,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:38,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-26 15:17:38,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-26 15:17:38,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 308 [2024-01-26 15:17:38,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 105 transitions, 292 flow. Second operand has 5 states, 5 states have (on average 211.4) internal successors, (1057), 5 states have internal predecessors, (1057), 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) [2024-01-26 15:17:38,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:38,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 308 [2024-01-26 15:17:38,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:39,868 INFO L124 PetriNetUnfolderBase]: 3492/7497 cut-off events. [2024-01-26 15:17:39,868 INFO L125 PetriNetUnfolderBase]: For 3650/3650 co-relation queries the response was YES. [2024-01-26 15:17:39,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14808 conditions, 7497 events. 3492/7497 cut-off events. For 3650/3650 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 51878 event pairs, 2518 based on Foata normal form. 0/6557 useless extension candidates. Maximal degree in co-relation 14793. Up to 4380 conditions per place. [2024-01-26 15:17:39,908 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 77 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-01-26 15:17:39,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 547 flow [2024-01-26 15:17:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:17:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:17:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1103 transitions. [2024-01-26 15:17:39,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7162337662337662 [2024-01-26 15:17:39,910 INFO L175 Difference]: Start difference. First operand has 133 places, 105 transitions, 292 flow. Second operand 5 states and 1103 transitions. [2024-01-26 15:17:39,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 133 transitions, 547 flow [2024-01-26 15:17:39,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 133 transitions, 516 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-01-26 15:17:39,916 INFO L231 Difference]: Finished difference. Result has 112 places, 104 transitions, 283 flow [2024-01-26 15:17:39,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=112, PETRI_TRANSITIONS=104} [2024-01-26 15:17:39,917 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -78 predicate places. [2024-01-26 15:17:39,917 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 104 transitions, 283 flow [2024-01-26 15:17:39,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 211.4) internal successors, (1057), 5 states have internal predecessors, (1057), 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) [2024-01-26 15:17:39,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:17:39,918 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:39,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-01-26 15:17:39,918 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-26 15:17:39,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:17:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1477883387, now seen corresponding path program 1 times [2024-01-26 15:17:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:17:39,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682533698] [2024-01-26 15:17:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:17:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:17:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:17:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 15:17:40,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:17:40,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682533698] [2024-01-26 15:17:40,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682533698] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:17:40,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:17:40,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:17:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885386068] [2024-01-26 15:17:40,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:17:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:17:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:17:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:17:40,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:17:40,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 308 [2024-01-26 15:17:40,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 104 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 205.75) internal successors, (823), 4 states have internal predecessors, (823), 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) [2024-01-26 15:17:40,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:17:40,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 308 [2024-01-26 15:17:40,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:17:41,099 INFO L124 PetriNetUnfolderBase]: 4671/10302 cut-off events. [2024-01-26 15:17:41,099 INFO L125 PetriNetUnfolderBase]: For 2330/2330 co-relation queries the response was YES. [2024-01-26 15:17:41,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19365 conditions, 10302 events. 4671/10302 cut-off events. For 2330/2330 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 74836 event pairs, 3270 based on Foata normal form. 0/9041 useless extension candidates. Maximal degree in co-relation 19354. Up to 4863 conditions per place. [2024-01-26 15:17:41,147 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2024-01-26 15:17:41,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 567 flow [2024-01-26 15:17:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:17:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:17:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 877 transitions. [2024-01-26 15:17:41,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7118506493506493 [2024-01-26 15:17:41,151 INFO L175 Difference]: Start difference. First operand has 112 places, 104 transitions, 283 flow. Second operand 4 states and 877 transitions. [2024-01-26 15:17:41,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 567 flow [2024-01-26 15:17:41,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 138 transitions, 552 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:17:41,163 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2024-01-26 15:17:41,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2024-01-26 15:17:41,163 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -81 predicate places. [2024-01-26 15:17:41,164 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2024-01-26 15:17:41,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.75) internal successors, (823), 4 states have internal predecessors, (823), 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) [2024-01-26 15:17:41,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 111 remaining) [2024-01-26 15:17:41,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 111 remaining) [2024-01-26 15:17:41,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 111 remaining) [2024-01-26 15:17:41,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 111 remaining) [2024-01-26 15:17:41,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 111 remaining) [2024-01-26 15:17:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 111 remaining) [2024-01-26 15:17:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (104 of 111 remaining) [2024-01-26 15:17:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 111 remaining) [2024-01-26 15:17:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 111 remaining) [2024-01-26 15:17:41,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 111 remaining) [2024-01-26 15:17:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 111 remaining) [2024-01-26 15:17:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 111 remaining) [2024-01-26 15:17:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 111 remaining) [2024-01-26 15:17:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (97 of 111 remaining) [2024-01-26 15:17:41,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 111 remaining) [2024-01-26 15:17:41,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (88 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 111 remaining) [2024-01-26 15:17:41,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (80 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 111 remaining) [2024-01-26 15:17:41,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 111 remaining) [2024-01-26 15:17:41,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 111 remaining) [2024-01-26 15:17:41,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 111 remaining) [2024-01-26 15:17:41,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 111 remaining) [2024-01-26 15:17:41,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr31ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 111 remaining) [2024-01-26 15:17:41,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr32ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION (70 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 111 remaining) [2024-01-26 15:17:41,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr28ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr34ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr30ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr29ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 111 remaining) [2024-01-26 15:17:41,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 111 remaining) [2024-01-26 15:17:41,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr25ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr26ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION (51 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 111 remaining) [2024-01-26 15:17:41,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 111 remaining) [2024-01-26 15:17:41,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 111 remaining) [2024-01-26 15:17:41,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 111 remaining) [2024-01-26 15:17:41,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 111 remaining) [2024-01-26 15:17:41,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 111 remaining) [2024-01-26 15:17:41,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 111 remaining) [2024-01-26 15:17:41,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 111 remaining) [2024-01-26 15:17:41,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 111 remaining) [2024-01-26 15:17:41,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (36 of 111 remaining) [2024-01-26 15:17:41,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 111 remaining) [2024-01-26 15:17:41,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 111 remaining) [2024-01-26 15:17:41,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr31ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr32ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 111 remaining) [2024-01-26 15:17:41,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION (27 of 111 remaining) [2024-01-26 15:17:41,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 111 remaining) [2024-01-26 15:17:41,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 111 remaining) [2024-01-26 15:17:41,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr28ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 111 remaining) [2024-01-26 15:17:41,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr34ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 111 remaining) [2024-01-26 15:17:41,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr30ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr29ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 111 remaining) [2024-01-26 15:17:41,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 111 remaining) [2024-01-26 15:17:41,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 111 remaining) [2024-01-26 15:17:41,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 111 remaining) [2024-01-26 15:17:41,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 111 remaining) [2024-01-26 15:17:41,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr25ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 111 remaining) [2024-01-26 15:17:41,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr26ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION (8 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 111 remaining) [2024-01-26 15:17:41,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 111 remaining) [2024-01-26 15:17:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 111 remaining) [2024-01-26 15:17:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 111 remaining) [2024-01-26 15:17:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 111 remaining) [2024-01-26 15:17:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 111 remaining) [2024-01-26 15:17:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 111 remaining) [2024-01-26 15:17:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-01-26 15:17:41,188 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:17:41,194 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:17:41,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:17:41,199 INFO L503 ceAbstractionStarter]: Automizer considered 60 witness invariants [2024-01-26 15:17:41,199 INFO L504 ceAbstractionStarter]: WitnessConsidered=60 [2024-01-26 15:17:41,201 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:17:41 BasicIcfg [2024-01-26 15:17:41,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:17:41,201 INFO L158 Benchmark]: Toolchain (without parser) took 33713.81ms. Allocated memory was 197.1MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 135.0MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2024-01-26 15:17:41,202 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:17:41,202 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:17:41,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1135.04ms. Allocated memory is still 197.1MB. Free memory was 134.8MB in the beginning and 126.3MB in the end (delta: 8.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-01-26 15:17:41,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.42ms. Allocated memory is still 197.1MB. Free memory was 126.3MB in the beginning and 122.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-26 15:17:41,203 INFO L158 Benchmark]: Boogie Preprocessor took 51.83ms. Allocated memory is still 197.1MB. Free memory was 122.1MB in the beginning and 117.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-26 15:17:41,203 INFO L158 Benchmark]: RCFGBuilder took 812.36ms. Allocated memory is still 197.1MB. Free memory was 117.4MB in the beginning and 153.4MB in the end (delta: -36.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-01-26 15:17:41,203 INFO L158 Benchmark]: TraceAbstraction took 31656.76ms. Allocated memory was 197.1MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 152.3MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2024-01-26 15:17:41,204 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1135.04ms. Allocated memory is still 197.1MB. Free memory was 134.8MB in the beginning and 126.3MB in the end (delta: 8.5MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.42ms. Allocated memory is still 197.1MB. Free memory was 126.3MB in the beginning and 122.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.83ms. Allocated memory is still 197.1MB. Free memory was 122.1MB in the beginning and 117.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 812.36ms. Allocated memory is still 197.1MB. Free memory was 117.4MB in the beginning and 153.4MB in the end (delta: -36.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * TraceAbstraction took 31656.76ms. Allocated memory was 197.1MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 152.3MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1706]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1776]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1776]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1777]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1777]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1778]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1778]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1779]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1779]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1780]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1780]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1784]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1784]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1785]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1785]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1791]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1786]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1792]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1786]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1793]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1743]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1746]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1747]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1770]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1772]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1748]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1755]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1749]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1756]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1763]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1773]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1757]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1764]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1732]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1732]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1732]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1726]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1732]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1758]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1732]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1759]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1760]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1734]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1750]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1752]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1752]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 309 locations, 111 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: 31.5s, OverallIterations: 20, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1638 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1335 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4785 IncrementalHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 62 mSDtfsCounter, 4785 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=508occurred in iteration=17, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 652 NumberOfCodeBlocks, 652 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 1003 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 17/17 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 66 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-26 15:17:41,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE