./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:15:43,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:15:43,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:15:43,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:15:43,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:15:43,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:15:43,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:15:43,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:15:43,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:15:43,792 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:15:43,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:15:43,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:15:43,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:15:43,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:15:43,794 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:15:43,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:15:43,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:15:43,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:15:43,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:15:43,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:15:43,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:15:43,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:15:43,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:15:43,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:15:43,796 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:15:43,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:15:43,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:15:43,797 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:15:43,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:15:43,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:15:43,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:15:43,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:15:43,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:15:43,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:15:43,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:15:43,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:15:43,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:15:43,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:15:43,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:15:43,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:15:43,800 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:15:43,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:15:43,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:15:43,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:15:44,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:15:44,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:15:44,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:15:44,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:15:44,051 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:15:44,052 INFO L431 ainManager$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 [2024-01-29 14:15:45,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:15:45,407 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:15:45,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-01-29 14:15:45,427 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d612e1fcf/1bc75e426e754565a4a2175ffc4a969b/FLAG441953f42 [2024-01-29 14:15:45,440 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d612e1fcf/1bc75e426e754565a4a2175ffc4a969b [2024-01-29 14:15:45,442 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:15:45,442 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:15:45,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml [2024-01-29 14:15:45,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:15:45,538 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:15:45,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:15:45,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:15:45,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:15:45,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:15:45" (1/2) ... [2024-01-29 14:15:45,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1912a19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:15:45, skipping insertion in model container [2024-01-29 14:15:45,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:15:45" (1/2) ... [2024-01-29 14:15:45,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6da711d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:15:45, skipping insertion in model container [2024-01-29 14:15:45,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:15:45" (2/2) ... [2024-01-29 14:15:45,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1912a19f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:45, skipping insertion in model container [2024-01-29 14:15:45,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:15:45" (2/2) ... [2024-01-29 14:15:45,546 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:15:45,650 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:15:45,651 INFO L98 nessWitnessExtractor]: Location invariant before [L1757-L1757] (unsigned long )arg == 0UL [2024-01-29 14:15:45,651 INFO L98 nessWitnessExtractor]: Location invariant before [L1793-L1793] (unsigned long )status == 0UL [2024-01-29 14:15:45,651 INFO L98 nessWitnessExtractor]: Location invariant before [L1707-L1707] (unsigned long )arg == 0UL [2024-01-29 14:15:45,651 INFO L98 nessWitnessExtractor]: Location invariant before [L1756-L1761] (unsigned long )arg == 0UL [2024-01-29 14:15:45,651 INFO L98 nessWitnessExtractor]: Location invariant before [L1777-L1777] pdev == 0 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1777-L1777] ldv_usb_state == 0 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1779-L1782] pdev == 1 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1779-L1782] ldv_usb_state == 0 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1783-L1783] ldv_usb_state == 0 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1783-L1783] pdev == 1 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1746-L1768] (unsigned long )arg == 0UL [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1778-L1778] pdev == 1 [2024-01-29 14:15:45,652 INFO L98 nessWitnessExtractor]: Location invariant before [L1778-L1778] ldv_usb_state == 0 [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1752-L1752] probe_ret == 0 [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1752-L1752] (unsigned long )arg == 0UL [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1706-L1706] (unsigned long )arg == 0UL [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Loop invariant at [L1704-L1712] (unsigned long )arg == 0UL [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1791-L1791] (unsigned long )status == 0UL [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1747-L1747] (unsigned long )arg == 0UL [2024-01-29 14:15:45,653 INFO L98 nessWitnessExtractor]: Location invariant before [L1763-L1763] (unsigned long )arg == 0UL [2024-01-29 14:15:45,654 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] -128 <= probe_ret [2024-01-29 14:15:45,654 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret <= 127 [2024-01-29 14:15:45,654 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret <= 0 [2024-01-29 14:15:45,654 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] (unsigned long )arg == 0UL [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] probe_ret == -1 || probe_ret == 0 [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1750-L1751] -1 <= probe_ret [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1755-L1755] (unsigned long )arg == 0UL [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1726-L1726] (unsigned long )status == 0UL [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1734-L1734] error == 0 [2024-01-29 14:15:45,655 INFO L98 nessWitnessExtractor]: Location invariant before [L1743-L1743] (unsigned long )arg == 0UL [2024-01-29 14:15:45,656 INFO L98 nessWitnessExtractor]: Location invariant before [L1749-L1749] (unsigned long )arg == 0UL [2024-01-29 14:15:45,656 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)) [2024-01-29 14:15:45,656 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 0 [2024-01-29 14:15:45,656 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 1 [2024-01-29 14:15:45,656 INFO L98 nessWitnessExtractor]: Location invariant before [L1773-L1773] (unsigned long )arg == 0UL [2024-01-29 14:15:45,657 INFO L98 nessWitnessExtractor]: Location invariant before [L1785-L1785] ldv_usb_state == 0 [2024-01-29 14:15:45,657 INFO L98 nessWitnessExtractor]: Location invariant before [L1785-L1785] pdev == 3 [2024-01-29 14:15:45,657 INFO L98 nessWitnessExtractor]: Location invariant before [L1772-L1772] (unsigned long )arg == 0UL [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Location invariant after [L1788-L1794] (unsigned long )status == 0UL [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Location invariant before [L1759-L1759] (unsigned long )arg == 0UL [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Location invariant before [L1792-L1792] (unsigned long )status == 0UL [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Location invariant before [L1784-L1784] pdev == 3 [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Location invariant before [L1784-L1784] ldv_usb_state == 0 [2024-01-29 14:15:45,658 INFO L98 nessWitnessExtractor]: Loop invariant at [L1745-L1769] (unsigned long )arg == 0UL [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant before [L1748-L1753] (unsigned long )arg == 0UL [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant before [L1764-L1766] (unsigned long )arg == 0UL [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] (unsigned long )arg == 0UL [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant before [L1760-L1760] (unsigned long )arg == 0UL [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant after [L1735-L1736] error == -1 [2024-01-29 14:15:45,659 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1711] (unsigned long )arg == 0UL [2024-01-29 14:15:45,660 INFO L98 nessWitnessExtractor]: Location invariant before [L1776-L1776] pdev == 0 [2024-01-29 14:15:45,660 INFO L98 nessWitnessExtractor]: Location invariant before [L1776-L1776] ldv_usb_state == 0 [2024-01-29 14:15:45,660 INFO L98 nessWitnessExtractor]: Location invariant after [L1713-L1714] (unsigned long )arg == 0UL [2024-01-29 14:15:45,660 INFO L98 nessWitnessExtractor]: Location invariant before [L1758-L1758] (unsigned long )arg == 0UL [2024-01-29 14:15:45,660 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] -1 <= error [2024-01-29 14:15:45,661 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error == -1 || error == 0 [2024-01-29 14:15:45,661 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error <= 127 [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] error <= 0 [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] -128 <= error [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant after [L1770-L1771] (unsigned long )arg == 0UL [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1786-L1786] pdev == 3 [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1786-L1786] ldv_usb_state == 0 [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1780-L1780] pdev == 1 [2024-01-29 14:15:45,662 INFO L98 nessWitnessExtractor]: Location invariant before [L1780-L1780] ldv_usb_state == 0 [2024-01-29 14:15:45,708 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:15:46,202 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] [2024-01-29 14:15:46,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:15:46,265 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:15:46,301 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] [2024-01-29 14:15:46,310 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 [2024-01-29 14:15:46,386 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 [2024-01-29 14:15:46,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:15:46,484 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:15:46,486 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46 WrapperNode [2024-01-29 14:15:46,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:15:46,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:15:46,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:15:46,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:15:46,492 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 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,536 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 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,581 INFO L138 Inliner]: procedures = 487, calls = 48, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 285 [2024-01-29 14:15:46,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:15:46,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:15:46,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:15:46,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:15:46,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,637 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 4, 3, 3, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 1, 1, 5, 0]. The 4 writes are split as follows [0, 1, 1, 1, 0, 1]. [2024-01-29 14:15:46,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:15:46,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:15:46,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:15:46,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:15:46,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (1/1) ... [2024-01-29 14:15:46,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:15:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:15:46,706 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) [2024-01-29 14:15:46,720 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 [2024-01-29 14:15:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-01-29 14:15:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 14:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-01-29 14:15:46,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-01-29 14:15:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:15:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:15:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-29 14:15:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-29 14:15:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-29 14:15:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-29 14:15:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:15:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 14:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:15:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:15:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:15:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 14:15:46,750 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:15:46,954 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:15:46,956 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:15:47,297 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:15:47,298 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:15:47,444 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:15:47,445 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 14:15:47,445 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:15:47 BoogieIcfgContainer [2024-01-29 14:15:47,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:15:47,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:15:47,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:15:47,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:15:47,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:15:45" (1/4) ... [2024-01-29 14:15:47,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1f3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:15:47, skipping insertion in model container [2024-01-29 14:15:47,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:15:45" (2/4) ... [2024-01-29 14:15:47,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1f3a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:15:47, skipping insertion in model container [2024-01-29 14:15:47,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:15:46" (3/4) ... [2024-01-29 14:15:47,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1f3a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:15:47, skipping insertion in model container [2024-01-29 14:15:47,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:15:47" (4/4) ... [2024-01-29 14:15:47,454 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-01-29 14:15:47,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:15:47,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-29 14:15:47,469 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:15:47,554 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-01-29 14:15:47,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 308 transitions, 643 flow [2024-01-29 14:15:47,689 INFO L124 PetriNetUnfolderBase]: 30/306 cut-off events. [2024-01-29 14:15:47,690 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:15:47,698 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. [2024-01-29 14:15:47,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 308 transitions, 643 flow [2024-01-29 14:15:47,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 204 transitions, 424 flow [2024-01-29 14:15:47,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:15:47,766 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;@4df00295, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:15:47,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2024-01-29 14:15:47,768 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:15:47,769 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:15:47,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:15:47,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:47,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:15:47,770 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)] === [2024-01-29 14:15:47,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:47,776 INFO L85 PathProgramCache]: Analyzing trace with hash 22942, now seen corresponding path program 1 times [2024-01-29 14:15:47,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:47,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098690499] [2024-01-29 14:15:47,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:48,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:48,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098690499] [2024-01-29 14:15:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098690499] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:48,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:48,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:15:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856475734] [2024-01-29 14:15:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:48,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:15:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:48,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:15:48,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:15:48,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 308 [2024-01-29 14:15:48,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 204 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2024-01-29 14:15:48,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:48,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 308 [2024-01-29 14:15:48,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:48,994 INFO L124 PetriNetUnfolderBase]: 3383/8786 cut-off events. [2024-01-29 14:15:48,994 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-01-29 14:15:49,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13714 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 77763 event pairs, 1502 based on Foata normal form. 538/7319 useless extension candidates. Maximal degree in co-relation 13197. Up to 2922 conditions per place. [2024-01-29 14:15:49,053 INFO L140 encePairwiseOnDemand]: 283/308 looper letters, 94 selfloop transitions, 5 changer transitions 0/210 dead transitions. [2024-01-29 14:15:49,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 210 transitions, 634 flow [2024-01-29 14:15:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:15:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:15:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 659 transitions. [2024-01-29 14:15:49,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132034632034632 [2024-01-29 14:15:49,070 INFO L175 Difference]: Start difference. First operand has 190 places, 204 transitions, 424 flow. Second operand 3 states and 659 transitions. [2024-01-29 14:15:49,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 210 transitions, 634 flow [2024-01-29 14:15:49,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 210 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:15:49,081 INFO L231 Difference]: Finished difference. Result has 183 places, 189 transitions, 420 flow [2024-01-29 14:15:49,083 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=420, PETRI_PLACES=183, PETRI_TRANSITIONS=189} [2024-01-29 14:15:49,086 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -7 predicate places. [2024-01-29 14:15:49,086 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 189 transitions, 420 flow [2024-01-29 14:15:49,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2024-01-29 14:15:49,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:49,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:15:49,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:15:49,087 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)] === [2024-01-29 14:15:49,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash 711948, now seen corresponding path program 1 times [2024-01-29 14:15:49,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:49,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364410941] [2024-01-29 14:15:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:49,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:49,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:49,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364410941] [2024-01-29 14:15:49,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364410941] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:49,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:49,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:15:49,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113847517] [2024-01-29 14:15:49,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:49,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:15:49,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:49,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:15:49,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:15:49,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 308 [2024-01-29 14:15:49,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 189 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2024-01-29 14:15:49,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:49,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 308 [2024-01-29 14:15:49,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:49,862 INFO L124 PetriNetUnfolderBase]: 3030/7885 cut-off events. [2024-01-29 14:15:49,862 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-01-29 14:15:49,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12755 conditions, 7885 events. 3030/7885 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 69773 event pairs, 2380 based on Foata normal form. 0/6213 useless extension candidates. Maximal degree in co-relation 6460. Up to 4321 conditions per place. [2024-01-29 14:15:49,909 INFO L140 encePairwiseOnDemand]: 304/308 looper letters, 64 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-01-29 14:15:49,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 187 transitions, 548 flow [2024-01-29 14:15:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:15:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:15:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-01-29 14:15:49,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7229437229437229 [2024-01-29 14:15:49,911 INFO L175 Difference]: Start difference. First operand has 183 places, 189 transitions, 420 flow. Second operand 3 states and 668 transitions. [2024-01-29 14:15:49,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 187 transitions, 548 flow [2024-01-29 14:15:49,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 187 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:15:49,921 INFO L231 Difference]: Finished difference. Result has 181 places, 187 transitions, 410 flow [2024-01-29 14:15:49,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=181, PETRI_TRANSITIONS=187} [2024-01-29 14:15:49,922 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -9 predicate places. [2024-01-29 14:15:49,922 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 187 transitions, 410 flow [2024-01-29 14:15:49,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2024-01-29 14:15:49,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:49,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:15:49,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:15:49,923 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)] === [2024-01-29 14:15:49,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash 389849544, now seen corresponding path program 1 times [2024-01-29 14:15:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317837396] [2024-01-29 14:15:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:49,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317837396] [2024-01-29 14:15:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317837396] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:49,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:49,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:15:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847918889] [2024-01-29 14:15:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:15:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:15:49,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:15:49,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-29 14:15:49,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 187 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2024-01-29 14:15:49,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:49,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-29 14:15:49,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:50,897 INFO L124 PetriNetUnfolderBase]: 4637/11960 cut-off events. [2024-01-29 14:15:50,898 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-01-29 14:15:50,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19074 conditions, 11960 events. 4637/11960 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 104912 event pairs, 1321 based on Foata normal form. 0/9438 useless extension candidates. Maximal degree in co-relation 19058. Up to 4354 conditions per place. [2024-01-29 14:15:50,961 INFO L140 encePairwiseOnDemand]: 299/308 looper letters, 97 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2024-01-29 14:15:50,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 219 transitions, 691 flow [2024-01-29 14:15:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:15:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:15:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2024-01-29 14:15:50,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-01-29 14:15:50,964 INFO L175 Difference]: Start difference. First operand has 181 places, 187 transitions, 410 flow. Second operand 3 states and 700 transitions. [2024-01-29 14:15:50,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 219 transitions, 691 flow [2024-01-29 14:15:50,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 219 transitions, 687 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:15:50,974 INFO L231 Difference]: Finished difference. Result has 178 places, 186 transitions, 425 flow [2024-01-29 14:15:50,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=178, PETRI_TRANSITIONS=186} [2024-01-29 14:15:50,975 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2024-01-29 14:15:50,978 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 186 transitions, 425 flow [2024-01-29 14:15:50,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2024-01-29 14:15:50,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:50,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:15:50,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:15:50,979 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)] === [2024-01-29 14:15:50,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash 983284175, now seen corresponding path program 1 times [2024-01-29 14:15:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:50,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585601496] [2024-01-29 14:15:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:51,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:51,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585601496] [2024-01-29 14:15:51,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585601496] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:51,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:51,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:15:51,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366552306] [2024-01-29 14:15:51,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:51,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:15:51,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:15:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:15:51,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 308 [2024-01-29 14:15:51,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 186 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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) [2024-01-29 14:15:51,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:51,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 308 [2024-01-29 14:15:51,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:52,025 INFO L124 PetriNetUnfolderBase]: 4663/11993 cut-off events. [2024-01-29 14:15:52,025 INFO L125 PetriNetUnfolderBase]: For 310/346 co-relation queries the response was YES. [2024-01-29 14:15:52,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19652 conditions, 11993 events. 4663/11993 cut-off events. For 310/346 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 105052 event pairs, 1325 based on Foata normal form. 12/9480 useless extension candidates. Maximal degree in co-relation 7595. Up to 4379 conditions per place. [2024-01-29 14:15:52,094 INFO L140 encePairwiseOnDemand]: 295/308 looper letters, 105 selfloop transitions, 11 changer transitions 1/226 dead transitions. [2024-01-29 14:15:52,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 226 transitions, 754 flow [2024-01-29 14:15:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:15:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:15:52,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1079 transitions. [2024-01-29 14:15:52,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7006493506493506 [2024-01-29 14:15:52,097 INFO L175 Difference]: Start difference. First operand has 178 places, 186 transitions, 425 flow. Second operand 5 states and 1079 transitions. [2024-01-29 14:15:52,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 226 transitions, 754 flow [2024-01-29 14:15:52,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 226 transitions, 749 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:15:52,102 INFO L231 Difference]: Finished difference. Result has 177 places, 182 transitions, 434 flow [2024-01-29 14:15:52,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=434, PETRI_PLACES=177, PETRI_TRANSITIONS=182} [2024-01-29 14:15:52,104 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -13 predicate places. [2024-01-29 14:15:52,104 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 182 transitions, 434 flow [2024-01-29 14:15:52,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 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) [2024-01-29 14:15:52,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:52,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:15:52,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:15:52,105 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)] === [2024-01-29 14:15:52,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash -179782835, now seen corresponding path program 1 times [2024-01-29 14:15:52,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:52,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493112223] [2024-01-29 14:15:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:52,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493112223] [2024-01-29 14:15:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493112223] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:52,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:52,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:15:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216185500] [2024-01-29 14:15:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:52,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:15:52,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:52,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:15:52,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:15:52,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-29 14:15:52,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 182 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2024-01-29 14:15:52,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:52,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-29 14:15:52,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:53,084 INFO L124 PetriNetUnfolderBase]: 4637/11911 cut-off events. [2024-01-29 14:15:53,085 INFO L125 PetriNetUnfolderBase]: For 498/534 co-relation queries the response was YES. [2024-01-29 14:15:53,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19541 conditions, 11911 events. 4637/11911 cut-off events. For 498/534 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 104105 event pairs, 3621 based on Foata normal form. 2/9390 useless extension candidates. Maximal degree in co-relation 7596. Up to 6586 conditions per place. [2024-01-29 14:15:53,133 INFO L140 encePairwiseOnDemand]: 304/308 looper letters, 63 selfloop transitions, 0 changer transitions 10/179 dead transitions. [2024-01-29 14:15:53,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 179 transitions, 566 flow [2024-01-29 14:15:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:15:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:15:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2024-01-29 14:15:53,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7207792207792207 [2024-01-29 14:15:53,135 INFO L175 Difference]: Start difference. First operand has 177 places, 182 transitions, 434 flow. Second operand 3 states and 666 transitions. [2024-01-29 14:15:53,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 179 transitions, 566 flow [2024-01-29 14:15:53,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 179 transitions, 546 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:15:53,138 INFO L231 Difference]: Finished difference. Result has 172 places, 169 transitions, 386 flow [2024-01-29 14:15:53,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=172, PETRI_TRANSITIONS=169} [2024-01-29 14:15:53,139 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2024-01-29 14:15:53,139 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 169 transitions, 386 flow [2024-01-29 14:15:53,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2024-01-29 14:15:53,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:53,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:15:53,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:15:53,140 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)] === [2024-01-29 14:15:53,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:53,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1243568967, now seen corresponding path program 1 times [2024-01-29 14:15:53,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:53,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920346338] [2024-01-29 14:15:53,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:53,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:53,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:53,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920346338] [2024-01-29 14:15:53,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920346338] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:53,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:53,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:15:53,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090158065] [2024-01-29 14:15:53,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:53,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:15:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:53,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:15:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:15:53,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 308 [2024-01-29 14:15:53,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 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) [2024-01-29 14:15:53,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:53,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 308 [2024-01-29 14:15:53,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:54,069 INFO L124 PetriNetUnfolderBase]: 4489/10765 cut-off events. [2024-01-29 14:15:54,069 INFO L125 PetriNetUnfolderBase]: For 164/170 co-relation queries the response was YES. [2024-01-29 14:15:54,087 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 88155 event pairs, 1679 based on Foata normal form. 906/9626 useless extension candidates. Maximal degree in co-relation 17926. Up to 6350 conditions per place. [2024-01-29 14:15:54,123 INFO L140 encePairwiseOnDemand]: 286/308 looper letters, 65 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-29 14:15:54,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 154 transitions, 490 flow [2024-01-29 14:15:54,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:15:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:15:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 825 transitions. [2024-01-29 14:15:54,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6696428571428571 [2024-01-29 14:15:54,126 INFO L175 Difference]: Start difference. First operand has 172 places, 169 transitions, 386 flow. Second operand 4 states and 825 transitions. [2024-01-29 14:15:54,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 154 transitions, 490 flow [2024-01-29 14:15:54,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 154 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:15:54,129 INFO L231 Difference]: Finished difference. Result has 144 places, 149 transitions, 350 flow [2024-01-29 14:15:54,130 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} [2024-01-29 14:15:54,130 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -46 predicate places. [2024-01-29 14:15:54,130 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 149 transitions, 350 flow [2024-01-29 14:15:54,131 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) [2024-01-29 14:15:54,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:54,131 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] [2024-01-29 14:15:54,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:15:54,131 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)] === [2024-01-29 14:15:54,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash -225870301, now seen corresponding path program 1 times [2024-01-29 14:15:54,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:54,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367169792] [2024-01-29 14:15:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:54,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:54,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:54,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367169792] [2024-01-29 14:15:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367169792] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:54,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:54,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:15:54,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761264013] [2024-01-29 14:15:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:54,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:15:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:54,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:15:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:15:54,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-29 14:15:54,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 149 transitions, 350 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) [2024-01-29 14:15:54,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:54,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-29 14:15:54,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:55,050 INFO L124 PetriNetUnfolderBase]: 5998/13863 cut-off events. [2024-01-29 14:15:55,051 INFO L125 PetriNetUnfolderBase]: For 247/283 co-relation queries the response was YES. [2024-01-29 14:15:55,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23406 conditions, 13863 events. 5998/13863 cut-off events. For 247/283 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 114925 event pairs, 2013 based on Foata normal form. 132/11514 useless extension candidates. Maximal degree in co-relation 23399. Up to 4486 conditions per place. [2024-01-29 14:15:55,121 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 109 selfloop transitions, 5 changer transitions 1/196 dead transitions. [2024-01-29 14:15:55,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 196 transitions, 683 flow [2024-01-29 14:15:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:15:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:15:55,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 909 transitions. [2024-01-29 14:15:55,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7378246753246753 [2024-01-29 14:15:55,123 INFO L175 Difference]: Start difference. First operand has 144 places, 149 transitions, 350 flow. Second operand 4 states and 909 transitions. [2024-01-29 14:15:55,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 196 transitions, 683 flow [2024-01-29 14:15:55,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 196 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:15:55,127 INFO L231 Difference]: Finished difference. Result has 144 places, 148 transitions, 362 flow [2024-01-29 14:15:55,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=144, PETRI_TRANSITIONS=148} [2024-01-29 14:15:55,128 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -46 predicate places. [2024-01-29 14:15:55,128 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 148 transitions, 362 flow [2024-01-29 14:15:55,128 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) [2024-01-29 14:15:55,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:55,129 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] [2024-01-29 14:15:55,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:15:55,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:15:55,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1587956216, now seen corresponding path program 1 times [2024-01-29 14:15:55,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:55,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079247217] [2024-01-29 14:15:55,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:55,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:55,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:55,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079247217] [2024-01-29 14:15:55,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079247217] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:55,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:55,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:15:55,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454221030] [2024-01-29 14:15:55,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:55,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:15:55,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:55,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:15:55,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:15:55,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 308 [2024-01-29 14:15:55,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 148 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2024-01-29 14:15:55,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:55,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 308 [2024-01-29 14:15:55,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:56,911 INFO L124 PetriNetUnfolderBase]: 8943/22341 cut-off events. [2024-01-29 14:15:56,911 INFO L125 PetriNetUnfolderBase]: For 1896/1896 co-relation queries the response was YES. [2024-01-29 14:15:56,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38071 conditions, 22341 events. 8943/22341 cut-off events. For 1896/1896 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 207798 event pairs, 4163 based on Foata normal form. 264/18645 useless extension candidates. Maximal degree in co-relation 38063. Up to 7177 conditions per place. [2024-01-29 14:15:57,000 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 124 selfloop transitions, 4 changer transitions 0/211 dead transitions. [2024-01-29 14:15:57,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 211 transitions, 776 flow [2024-01-29 14:15:57,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:15:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:15:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 929 transitions. [2024-01-29 14:15:57,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7540584415584416 [2024-01-29 14:15:57,002 INFO L175 Difference]: Start difference. First operand has 144 places, 148 transitions, 362 flow. Second operand 4 states and 929 transitions. [2024-01-29 14:15:57,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 211 transitions, 776 flow [2024-01-29 14:15:57,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 211 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:15:57,009 INFO L231 Difference]: Finished difference. Result has 147 places, 151 transitions, 395 flow [2024-01-29 14:15:57,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=395, PETRI_PLACES=147, PETRI_TRANSITIONS=151} [2024-01-29 14:15:57,009 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -43 predicate places. [2024-01-29 14:15:57,009 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 151 transitions, 395 flow [2024-01-29 14:15:57,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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) [2024-01-29 14:15:57,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:57,010 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] [2024-01-29 14:15:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:15:57,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:15:57,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1588042865, now seen corresponding path program 1 times [2024-01-29 14:15:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191764785] [2024-01-29 14:15:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:57,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:57,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:57,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191764785] [2024-01-29 14:15:57,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191764785] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:57,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:57,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:15:57,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606578258] [2024-01-29 14:15:57,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:57,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:15:57,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:57,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:15:57,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:15:57,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-29 14:15:57,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 151 transitions, 395 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) [2024-01-29 14:15:57,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:57,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-29 14:15:57,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:58,357 INFO L124 PetriNetUnfolderBase]: 8414/17331 cut-off events. [2024-01-29 14:15:58,358 INFO L125 PetriNetUnfolderBase]: For 4278/4350 co-relation queries the response was YES. [2024-01-29 14:15:58,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33139 conditions, 17331 events. 8414/17331 cut-off events. For 4278/4350 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 137636 event pairs, 125 based on Foata normal form. 724/15663 useless extension candidates. Maximal degree in co-relation 33129. Up to 11217 conditions per place. [2024-01-29 14:15:58,412 INFO L140 encePairwiseOnDemand]: 300/308 looper letters, 121 selfloop transitions, 3 changer transitions 2/205 dead transitions. [2024-01-29 14:15:58,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 205 transitions, 822 flow [2024-01-29 14:15:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:15:58,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:15:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 919 transitions. [2024-01-29 14:15:58,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7459415584415584 [2024-01-29 14:15:58,415 INFO L175 Difference]: Start difference. First operand has 147 places, 151 transitions, 395 flow. Second operand 4 states and 919 transitions. [2024-01-29 14:15:58,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 205 transitions, 822 flow [2024-01-29 14:15:58,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 205 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:15:58,421 INFO L231 Difference]: Finished difference. Result has 143 places, 146 transitions, 392 flow [2024-01-29 14:15:58,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=143, PETRI_TRANSITIONS=146} [2024-01-29 14:15:58,421 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -47 predicate places. [2024-01-29 14:15:58,421 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 146 transitions, 392 flow [2024-01-29 14:15:58,422 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) [2024-01-29 14:15:58,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:15:58,422 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] [2024-01-29 14:15:58,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:15:58,422 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:15:58,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:15:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1312564156, now seen corresponding path program 1 times [2024-01-29 14:15:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:15:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530200283] [2024-01-29 14:15:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:15:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:15:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:15:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:15:58,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:15:58,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530200283] [2024-01-29 14:15:58,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530200283] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:15:58,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:15:58,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:15:58,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061611188] [2024-01-29 14:15:58,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:15:58,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:15:58,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:15:58,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:15:58,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:15:58,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 308 [2024-01-29 14:15:58,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 146 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 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) [2024-01-29 14:15:58,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:15:58,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 308 [2024-01-29 14:15:58,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:15:59,956 INFO L124 PetriNetUnfolderBase]: 10323/22936 cut-off events. [2024-01-29 14:15:59,956 INFO L125 PetriNetUnfolderBase]: For 2940/2976 co-relation queries the response was YES. [2024-01-29 14:16:00,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41867 conditions, 22936 events. 10323/22936 cut-off events. For 2940/2976 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 195520 event pairs, 1953 based on Foata normal form. 120/19581 useless extension candidates. Maximal degree in co-relation 41857. Up to 8555 conditions per place. [2024-01-29 14:16:00,086 INFO L140 encePairwiseOnDemand]: 300/308 looper letters, 126 selfloop transitions, 9 changer transitions 1/209 dead transitions. [2024-01-29 14:16:00,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 209 transitions, 801 flow [2024-01-29 14:16:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1114 transitions. [2024-01-29 14:16:00,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7233766233766233 [2024-01-29 14:16:00,089 INFO L175 Difference]: Start difference. First operand has 143 places, 146 transitions, 392 flow. Second operand 5 states and 1114 transitions. [2024-01-29 14:16:00,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 209 transitions, 801 flow [2024-01-29 14:16:00,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 209 transitions, 798 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:00,102 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 401 flow [2024-01-29 14:16:00,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2024-01-29 14:16:00,103 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -46 predicate places. [2024-01-29 14:16:00,103 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 401 flow [2024-01-29 14:16:00,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 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) [2024-01-29 14:16:00,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:00,104 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] [2024-01-29 14:16:00,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:16:00,104 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:00,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1398468621, now seen corresponding path program 1 times [2024-01-29 14:16:00,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:00,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026273969] [2024-01-29 14:16:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:00,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:00,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026273969] [2024-01-29 14:16:00,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026273969] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:00,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:00,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:00,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576033263] [2024-01-29 14:16:00,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:00,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:00,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-29 14:16:00,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 401 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) [2024-01-29 14:16:00,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:00,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-29 14:16:00,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:01,714 INFO L124 PetriNetUnfolderBase]: 8453/19629 cut-off events. [2024-01-29 14:16:01,714 INFO L125 PetriNetUnfolderBase]: For 6478/6520 co-relation queries the response was YES. [2024-01-29 14:16:01,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36595 conditions, 19629 events. 8453/19629 cut-off events. For 6478/6520 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 167727 event pairs, 4407 based on Foata normal form. 234/16471 useless extension candidates. Maximal degree in co-relation 36584. Up to 6319 conditions per place. [2024-01-29 14:16:01,831 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 122 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2024-01-29 14:16:01,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 201 transitions, 788 flow [2024-01-29 14:16:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 918 transitions. [2024-01-29 14:16:01,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7451298701298701 [2024-01-29 14:16:01,833 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 401 flow. Second operand 4 states and 918 transitions. [2024-01-29 14:16:01,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 201 transitions, 788 flow [2024-01-29 14:16:01,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 201 transitions, 770 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:16:01,843 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 389 flow [2024-01-29 14:16:01,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=389, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2024-01-29 14:16:01,844 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -48 predicate places. [2024-01-29 14:16:01,844 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 389 flow [2024-01-29 14:16:01,845 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) [2024-01-29 14:16:01,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:01,845 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] [2024-01-29 14:16:01,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 14:16:01,845 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:01,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash 492841806, now seen corresponding path program 1 times [2024-01-29 14:16:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:01,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526228231] [2024-01-29 14:16:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:01,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:01,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526228231] [2024-01-29 14:16:01,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526228231] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:01,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:01,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:01,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875622659] [2024-01-29 14:16:01,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:01,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:01,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:01,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-29 14:16:01,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 389 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) [2024-01-29 14:16:01,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:01,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-29 14:16:01,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:03,785 INFO L124 PetriNetUnfolderBase]: 10298/22417 cut-off events. [2024-01-29 14:16:03,785 INFO L125 PetriNetUnfolderBase]: For 5162/5162 co-relation queries the response was YES. [2024-01-29 14:16:03,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41991 conditions, 22417 events. 10298/22417 cut-off events. For 5162/5162 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 189139 event pairs, 6298 based on Foata normal form. 0/18871 useless extension candidates. Maximal degree in co-relation 41979. Up to 11450 conditions per place. [2024-01-29 14:16:03,928 INFO L140 encePairwiseOnDemand]: 299/308 looper letters, 118 selfloop transitions, 11 changer transitions 0/199 dead transitions. [2024-01-29 14:16:03,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 199 transitions, 768 flow [2024-01-29 14:16:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1113 transitions. [2024-01-29 14:16:03,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7227272727272728 [2024-01-29 14:16:03,931 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 389 flow. Second operand 5 states and 1113 transitions. [2024-01-29 14:16:03,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 199 transitions, 768 flow [2024-01-29 14:16:03,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 199 transitions, 750 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-01-29 14:16:03,941 INFO L231 Difference]: Finished difference. Result has 147 places, 148 transitions, 445 flow [2024-01-29 14:16:03,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=139, 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=445, PETRI_PLACES=147, PETRI_TRANSITIONS=148} [2024-01-29 14:16:03,942 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -43 predicate places. [2024-01-29 14:16:03,942 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 445 flow [2024-01-29 14:16:03,943 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) [2024-01-29 14:16:03,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:03,943 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] [2024-01-29 14:16:03,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 14:16:03,943 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:03,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:03,944 INFO L85 PathProgramCache]: Analyzing trace with hash -913197212, now seen corresponding path program 1 times [2024-01-29 14:16:03,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:03,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452917097] [2024-01-29 14:16:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:03,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:03,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:03,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452917097] [2024-01-29 14:16:03,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452917097] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:03,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195669044] [2024-01-29 14:16:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:03,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:03,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:04,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 308 [2024-01-29 14:16:04,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 148 transitions, 445 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) [2024-01-29 14:16:04,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:04,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 308 [2024-01-29 14:16:04,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:05,859 INFO L124 PetriNetUnfolderBase]: 12787/27762 cut-off events. [2024-01-29 14:16:05,859 INFO L125 PetriNetUnfolderBase]: For 7422/7554 co-relation queries the response was YES. [2024-01-29 14:16:05,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54151 conditions, 27762 events. 12787/27762 cut-off events. For 7422/7554 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 242655 event pairs, 1130 based on Foata normal form. 252/25103 useless extension candidates. Maximal degree in co-relation 54137. Up to 13982 conditions per place. [2024-01-29 14:16:06,027 INFO L140 encePairwiseOnDemand]: 302/308 looper letters, 142 selfloop transitions, 8 changer transitions 1/221 dead transitions. [2024-01-29 14:16:06,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 221 transitions, 958 flow [2024-01-29 14:16:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1132 transitions. [2024-01-29 14:16:06,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7350649350649351 [2024-01-29 14:16:06,031 INFO L175 Difference]: Start difference. First operand has 147 places, 148 transitions, 445 flow. Second operand 5 states and 1132 transitions. [2024-01-29 14:16:06,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 221 transitions, 958 flow [2024-01-29 14:16:06,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 221 transitions, 954 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:06,088 INFO L231 Difference]: Finished difference. Result has 150 places, 150 transitions, 481 flow [2024-01-29 14:16:06,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=481, PETRI_PLACES=150, PETRI_TRANSITIONS=150} [2024-01-29 14:16:06,089 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -40 predicate places. [2024-01-29 14:16:06,089 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 150 transitions, 481 flow [2024-01-29 14:16:06,090 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) [2024-01-29 14:16:06,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:06,090 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] [2024-01-29 14:16:06,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 14:16:06,090 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:06,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1755658484, now seen corresponding path program 1 times [2024-01-29 14:16:06,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:06,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787143409] [2024-01-29 14:16:06,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:06,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787143409] [2024-01-29 14:16:06,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787143409] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:06,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761645690] [2024-01-29 14:16:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:06,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:06,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-29 14:16:06,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 150 transitions, 481 flow. Second operand has 5 states, 5 states have (on average 201.8) internal successors, (1009), 5 states have internal predecessors, (1009), 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) [2024-01-29 14:16:06,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:06,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-29 14:16:06,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:07,527 INFO L124 PetriNetUnfolderBase]: 9342/19628 cut-off events. [2024-01-29 14:16:07,527 INFO L125 PetriNetUnfolderBase]: For 8134/8302 co-relation queries the response was YES. [2024-01-29 14:16:07,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40780 conditions, 19628 events. 9342/19628 cut-off events. For 8134/8302 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 160412 event pairs, 6063 based on Foata normal form. 426/17928 useless extension candidates. Maximal degree in co-relation 40764. Up to 10455 conditions per place. [2024-01-29 14:16:07,647 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 142 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2024-01-29 14:16:07,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 216 transitions, 956 flow [2024-01-29 14:16:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1119 transitions. [2024-01-29 14:16:07,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7266233766233766 [2024-01-29 14:16:07,649 INFO L175 Difference]: Start difference. First operand has 150 places, 150 transitions, 481 flow. Second operand 5 states and 1119 transitions. [2024-01-29 14:16:07,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 216 transitions, 956 flow [2024-01-29 14:16:07,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 216 transitions, 956 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:07,700 INFO L231 Difference]: Finished difference. Result has 156 places, 150 transitions, 501 flow [2024-01-29 14:16:07,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=501, PETRI_PLACES=156, PETRI_TRANSITIONS=150} [2024-01-29 14:16:07,700 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -34 predicate places. [2024-01-29 14:16:07,700 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 150 transitions, 501 flow [2024-01-29 14:16:07,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.8) internal successors, (1009), 5 states have internal predecessors, (1009), 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) [2024-01-29 14:16:07,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:07,701 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] [2024-01-29 14:16:07,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-29 14:16:07,701 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:07,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1476709696, now seen corresponding path program 1 times [2024-01-29 14:16:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081556202] [2024-01-29 14:16:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:07,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:07,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081556202] [2024-01-29 14:16:07,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081556202] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:07,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:07,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331825552] [2024-01-29 14:16:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:07,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:07,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:07,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:07,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-29 14:16:07,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 150 transitions, 501 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) [2024-01-29 14:16:07,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:07,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-29 14:16:07,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:09,028 INFO L124 PetriNetUnfolderBase]: 7888/17130 cut-off events. [2024-01-29 14:16:09,028 INFO L125 PetriNetUnfolderBase]: For 9820/9994 co-relation queries the response was YES. [2024-01-29 14:16:09,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36599 conditions, 17130 events. 7888/17130 cut-off events. For 9820/9994 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 139525 event pairs, 5532 based on Foata normal form. 24/15420 useless extension candidates. Maximal degree in co-relation 36580. Up to 10150 conditions per place. [2024-01-29 14:16:09,108 INFO L140 encePairwiseOnDemand]: 305/308 looper letters, 104 selfloop transitions, 5 changer transitions 2/184 dead transitions. [2024-01-29 14:16:09,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 184 transitions, 867 flow [2024-01-29 14:16:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-01-29 14:16:09,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2024-01-29 14:16:09,110 INFO L175 Difference]: Start difference. First operand has 156 places, 150 transitions, 501 flow. Second operand 3 states and 702 transitions. [2024-01-29 14:16:09,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 184 transitions, 867 flow [2024-01-29 14:16:09,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 184 transitions, 859 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:09,144 INFO L231 Difference]: Finished difference. Result has 154 places, 147 transitions, 500 flow [2024-01-29 14:16:09,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=154, PETRI_TRANSITIONS=147} [2024-01-29 14:16:09,145 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -36 predicate places. [2024-01-29 14:16:09,145 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 147 transitions, 500 flow [2024-01-29 14:16:09,145 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) [2024-01-29 14:16:09,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:09,146 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] [2024-01-29 14:16:09,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-29 14:16:09,146 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:09,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:09,146 INFO L85 PathProgramCache]: Analyzing trace with hash 910102266, now seen corresponding path program 1 times [2024-01-29 14:16:09,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:09,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102170872] [2024-01-29 14:16:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:09,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:09,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:09,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102170872] [2024-01-29 14:16:09,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102170872] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:09,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:09,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:09,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207723764] [2024-01-29 14:16:09,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:09,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:09,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:09,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:09,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-29 14:16:09,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 147 transitions, 500 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) [2024-01-29 14:16:09,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:09,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-29 14:16:09,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:10,511 INFO L124 PetriNetUnfolderBase]: 7958/17997 cut-off events. [2024-01-29 14:16:10,512 INFO L125 PetriNetUnfolderBase]: For 8872/9424 co-relation queries the response was YES. [2024-01-29 14:16:10,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38040 conditions, 17997 events. 7958/17997 cut-off events. For 8872/9424 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 151080 event pairs, 2140 based on Foata normal form. 1014/17248 useless extension candidates. Maximal degree in co-relation 38021. Up to 5318 conditions per place. [2024-01-29 14:16:10,622 INFO L140 encePairwiseOnDemand]: 300/308 looper letters, 144 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-01-29 14:16:10,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 217 transitions, 1018 flow [2024-01-29 14:16:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1127 transitions. [2024-01-29 14:16:10,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7318181818181818 [2024-01-29 14:16:10,624 INFO L175 Difference]: Start difference. First operand has 154 places, 147 transitions, 500 flow. Second operand 5 states and 1127 transitions. [2024-01-29 14:16:10,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 217 transitions, 1018 flow [2024-01-29 14:16:10,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 217 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:10,666 INFO L231 Difference]: Finished difference. Result has 153 places, 143 transitions, 491 flow [2024-01-29 14:16:10,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=491, PETRI_PLACES=153, PETRI_TRANSITIONS=143} [2024-01-29 14:16:10,666 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -37 predicate places. [2024-01-29 14:16:10,666 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 143 transitions, 491 flow [2024-01-29 14:16:10,667 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) [2024-01-29 14:16:10,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:10,667 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] [2024-01-29 14:16:10,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-29 14:16:10,667 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:10,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1385237596, now seen corresponding path program 1 times [2024-01-29 14:16:10,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:10,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706371290] [2024-01-29 14:16:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:10,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706371290] [2024-01-29 14:16:10,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706371290] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:10,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:10,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:10,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698559036] [2024-01-29 14:16:10,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:10,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:10,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:10,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 308 [2024-01-29 14:16:10,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 143 transitions, 491 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) [2024-01-29 14:16:10,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:10,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 308 [2024-01-29 14:16:10,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:12,179 INFO L124 PetriNetUnfolderBase]: 7348/16529 cut-off events. [2024-01-29 14:16:12,179 INFO L125 PetriNetUnfolderBase]: For 10944/11118 co-relation queries the response was YES. [2024-01-29 14:16:12,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35893 conditions, 16529 events. 7348/16529 cut-off events. For 10944/11118 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 137935 event pairs, 5268 based on Foata normal form. 36/14923 useless extension candidates. Maximal degree in co-relation 35873. Up to 9588 conditions per place. [2024-01-29 14:16:12,279 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 109 selfloop transitions, 4 changer transitions 1/183 dead transitions. [2024-01-29 14:16:12,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 183 transitions, 829 flow [2024-01-29 14:16:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:12,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1122 transitions. [2024-01-29 14:16:12,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-01-29 14:16:12,281 INFO L175 Difference]: Start difference. First operand has 153 places, 143 transitions, 491 flow. Second operand 5 states and 1122 transitions. [2024-01-29 14:16:12,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 183 transitions, 829 flow [2024-01-29 14:16:12,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 183 transitions, 818 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:12,330 INFO L231 Difference]: Finished difference. Result has 154 places, 142 transitions, 486 flow [2024-01-29 14:16:12,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=486, PETRI_PLACES=154, PETRI_TRANSITIONS=142} [2024-01-29 14:16:12,330 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -36 predicate places. [2024-01-29 14:16:12,331 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 142 transitions, 486 flow [2024-01-29 14:16:12,331 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) [2024-01-29 14:16:12,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:12,331 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] [2024-01-29 14:16:12,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-29 14:16:12,331 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:12,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash -7306655, now seen corresponding path program 1 times [2024-01-29 14:16:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:12,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734680780] [2024-01-29 14:16:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:12,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:12,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734680780] [2024-01-29 14:16:12,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734680780] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:12,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:12,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:16:12,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741742061] [2024-01-29 14:16:12,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:12,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 14:16:12,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:12,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 14:16:12,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-29 14:16:12,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-29 14:16:12,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 142 transitions, 486 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) [2024-01-29 14:16:12,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:12,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-29 14:16:12,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:13,880 INFO L124 PetriNetUnfolderBase]: 7348/16479 cut-off events. [2024-01-29 14:16:13,880 INFO L125 PetriNetUnfolderBase]: For 9234/9408 co-relation queries the response was YES. [2024-01-29 14:16:13,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35615 conditions, 16479 events. 7348/16479 cut-off events. For 9234/9408 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 137204 event pairs, 5268 based on Foata normal form. 86/14923 useless extension candidates. Maximal degree in co-relation 35595. Up to 9588 conditions per place. [2024-01-29 14:16:13,971 INFO L140 encePairwiseOnDemand]: 302/308 looper letters, 119 selfloop transitions, 6 changer transitions 1/194 dead transitions. [2024-01-29 14:16:13,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 194 transitions, 882 flow [2024-01-29 14:16:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 14:16:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 14:16:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1332 transitions. [2024-01-29 14:16:13,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7207792207792207 [2024-01-29 14:16:13,973 INFO L175 Difference]: Start difference. First operand has 154 places, 142 transitions, 486 flow. Second operand 6 states and 1332 transitions. [2024-01-29 14:16:13,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 194 transitions, 882 flow [2024-01-29 14:16:14,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 194 transitions, 874 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:16:14,029 INFO L231 Difference]: Finished difference. Result has 154 places, 141 transitions, 488 flow [2024-01-29 14:16:14,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=488, PETRI_PLACES=154, PETRI_TRANSITIONS=141} [2024-01-29 14:16:14,030 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -36 predicate places. [2024-01-29 14:16:14,030 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 141 transitions, 488 flow [2024-01-29 14:16:14,030 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) [2024-01-29 14:16:14,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:14,030 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] [2024-01-29 14:16:14,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-01-29 14:16:14,031 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:14,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash -226505603, now seen corresponding path program 1 times [2024-01-29 14:16:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:14,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827726332] [2024-01-29 14:16:14,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:14,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:14,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:14,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827726332] [2024-01-29 14:16:14,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827726332] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:14,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:14,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-29 14:16:14,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835249007] [2024-01-29 14:16:14,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:14,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 14:16:14,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:14,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 14:16:14,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-29 14:16:14,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 308 [2024-01-29 14:16:14,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 141 transitions, 488 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) [2024-01-29 14:16:14,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:14,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 308 [2024-01-29 14:16:14,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:15,710 INFO L124 PetriNetUnfolderBase]: 7348/16457 cut-off events. [2024-01-29 14:16:15,710 INFO L125 PetriNetUnfolderBase]: For 9234/9408 co-relation queries the response was YES. [2024-01-29 14:16:15,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35643 conditions, 16457 events. 7348/16457 cut-off events. For 9234/9408 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 136881 event pairs, 5266 based on Foata normal form. 36/14849 useless extension candidates. Maximal degree in co-relation 35623. Up to 9588 conditions per place. [2024-01-29 14:16:15,807 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 129 selfloop transitions, 7 changer transitions 1/204 dead transitions. [2024-01-29 14:16:15,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 204 transitions, 934 flow [2024-01-29 14:16:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-29 14:16:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-29 14:16:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1547 transitions. [2024-01-29 14:16:15,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175324675324676 [2024-01-29 14:16:15,810 INFO L175 Difference]: Start difference. First operand has 154 places, 141 transitions, 488 flow. Second operand 7 states and 1547 transitions. [2024-01-29 14:16:15,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 204 transitions, 934 flow [2024-01-29 14:16:15,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 204 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-29 14:16:15,866 INFO L231 Difference]: Finished difference. Result has 154 places, 140 transitions, 488 flow [2024-01-29 14:16:15,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=488, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2024-01-29 14:16:15,867 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -36 predicate places. [2024-01-29 14:16:15,867 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 488 flow [2024-01-29 14:16:15,868 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) [2024-01-29 14:16:15,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:15,868 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] [2024-01-29 14:16:15,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-01-29 14:16:15,868 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:15,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1371473325, now seen corresponding path program 1 times [2024-01-29 14:16:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187893138] [2024-01-29 14:16:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:15,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:15,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187893138] [2024-01-29 14:16:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187893138] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593678155] [2024-01-29 14:16:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:15,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:15,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:15,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:15,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 308 [2024-01-29 14:16:15,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 488 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) [2024-01-29 14:16:15,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:15,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 308 [2024-01-29 14:16:15,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:17,268 INFO L124 PetriNetUnfolderBase]: 7762/17091 cut-off events. [2024-01-29 14:16:17,268 INFO L125 PetriNetUnfolderBase]: For 10253/10385 co-relation queries the response was YES. [2024-01-29 14:16:17,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37182 conditions, 17091 events. 7762/17091 cut-off events. For 10253/10385 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 140847 event pairs, 6194 based on Foata normal form. 0/15385 useless extension candidates. Maximal degree in co-relation 37162. Up to 11331 conditions per place. [2024-01-29 14:16:17,333 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 101 selfloop transitions, 8 changer transitions 5/176 dead transitions. [2024-01-29 14:16:17,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 808 flow [2024-01-29 14:16:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:17,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1080 transitions. [2024-01-29 14:16:17,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2024-01-29 14:16:17,335 INFO L175 Difference]: Start difference. First operand has 154 places, 140 transitions, 488 flow. Second operand 5 states and 1080 transitions. [2024-01-29 14:16:17,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 808 flow [2024-01-29 14:16:17,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 176 transitions, 792 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 14:16:17,382 INFO L231 Difference]: Finished difference. Result has 156 places, 142 transitions, 520 flow [2024-01-29 14:16:17,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=520, PETRI_PLACES=156, PETRI_TRANSITIONS=142} [2024-01-29 14:16:17,382 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -34 predicate places. [2024-01-29 14:16:17,382 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 142 transitions, 520 flow [2024-01-29 14:16:17,383 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) [2024-01-29 14:16:17,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:17,383 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] [2024-01-29 14:16:17,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-01-29 14:16:17,383 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:17,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash 191793384, now seen corresponding path program 1 times [2024-01-29 14:16:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:17,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283814140] [2024-01-29 14:16:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:17,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:17,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:17,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:17,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283814140] [2024-01-29 14:16:17,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283814140] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:17,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:17,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:17,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207266399] [2024-01-29 14:16:17,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:17,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:17,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:17,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:17,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:17,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 308 [2024-01-29 14:16:17,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 142 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2024-01-29 14:16:17,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:17,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 308 [2024-01-29 14:16:17,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:18,064 INFO L124 PetriNetUnfolderBase]: 3956/8747 cut-off events. [2024-01-29 14:16:18,064 INFO L125 PetriNetUnfolderBase]: For 5628/5628 co-relation queries the response was YES. [2024-01-29 14:16:18,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17607 conditions, 8747 events. 3956/8747 cut-off events. For 5628/5628 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 62034 event pairs, 1512 based on Foata normal form. 360/8043 useless extension candidates. Maximal degree in co-relation 17584. Up to 2846 conditions per place. [2024-01-29 14:16:18,105 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 82 selfloop transitions, 2 changer transitions 20/147 dead transitions. [2024-01-29 14:16:18,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 673 flow [2024-01-29 14:16:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:18,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-01-29 14:16:18,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7153679653679653 [2024-01-29 14:16:18,106 INFO L175 Difference]: Start difference. First operand has 156 places, 142 transitions, 520 flow. Second operand 3 states and 661 transitions. [2024-01-29 14:16:18,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 673 flow [2024-01-29 14:16:18,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 147 transitions, 597 flow, removed 10 selfloop flow, removed 19 redundant places. [2024-01-29 14:16:18,120 INFO L231 Difference]: Finished difference. Result has 135 places, 105 transitions, 294 flow [2024-01-29 14:16:18,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=135, PETRI_TRANSITIONS=105} [2024-01-29 14:16:18,121 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -55 predicate places. [2024-01-29 14:16:18,121 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 105 transitions, 294 flow [2024-01-29 14:16:18,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2024-01-29 14:16:18,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:18,121 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] [2024-01-29 14:16:18,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-01-29 14:16:18,121 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:18,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 239914524, now seen corresponding path program 1 times [2024-01-29 14:16:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614921454] [2024-01-29 14:16:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:18,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614921454] [2024-01-29 14:16:18,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614921454] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:18,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:18,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:18,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812218747] [2024-01-29 14:16:18,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:18,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:18,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:18,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:18,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 308 [2024-01-29 14:16:18,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 105 transitions, 294 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) [2024-01-29 14:16:18,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:18,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 308 [2024-01-29 14:16:18,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:18,902 INFO L124 PetriNetUnfolderBase]: 3492/7497 cut-off events. [2024-01-29 14:16:18,903 INFO L125 PetriNetUnfolderBase]: For 3650/3650 co-relation queries the response was YES. [2024-01-29 14:16:18,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14869 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 51868 event pairs, 2518 based on Foata normal form. 0/6557 useless extension candidates. Maximal degree in co-relation 14853. Up to 4380 conditions per place. [2024-01-29 14:16:18,939 INFO L140 encePairwiseOnDemand]: 301/308 looper letters, 77 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-01-29 14:16:18,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 133 transitions, 549 flow [2024-01-29 14:16:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1103 transitions. [2024-01-29 14:16:18,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7162337662337662 [2024-01-29 14:16:18,941 INFO L175 Difference]: Start difference. First operand has 135 places, 105 transitions, 294 flow. Second operand 5 states and 1103 transitions. [2024-01-29 14:16:18,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 133 transitions, 549 flow [2024-01-29 14:16:18,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 133 transitions, 516 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-01-29 14:16:18,948 INFO L231 Difference]: Finished difference. Result has 112 places, 104 transitions, 283 flow [2024-01-29 14:16:18,948 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} [2024-01-29 14:16:18,949 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -78 predicate places. [2024-01-29 14:16:18,949 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 104 transitions, 283 flow [2024-01-29 14:16:18,949 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) [2024-01-29 14:16:18,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:18,950 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] [2024-01-29 14:16:18,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-01-29 14:16:18,951 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 108 more)] === [2024-01-29 14:16:18,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:18,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1585838317, now seen corresponding path program 1 times [2024-01-29 14:16:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:18,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136269512] [2024-01-29 14:16:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:18,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-29 14:16:19,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:19,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136269512] [2024-01-29 14:16:19,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136269512] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:19,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:19,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242225802] [2024-01-29 14:16:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:19,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 308 [2024-01-29 14:16:19,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 104 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 206.5) internal successors, (826), 4 states have internal predecessors, (826), 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) [2024-01-29 14:16:19,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:19,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 308 [2024-01-29 14:16:19,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:19,725 INFO L124 PetriNetUnfolderBase]: 4671/10302 cut-off events. [2024-01-29 14:16:19,725 INFO L125 PetriNetUnfolderBase]: For 2330/2330 co-relation queries the response was YES. [2024-01-29 14:16:19,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19364 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 74862 event pairs, 3270 based on Foata normal form. 0/9041 useless extension candidates. Maximal degree in co-relation 19353. Up to 4862 conditions per place. [2024-01-29 14:16:19,751 INFO L140 encePairwiseOnDemand]: 303/308 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2024-01-29 14:16:19,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 565 flow [2024-01-29 14:16:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 880 transitions. [2024-01-29 14:16:19,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-01-29 14:16:19,753 INFO L175 Difference]: Start difference. First operand has 112 places, 104 transitions, 283 flow. Second operand 4 states and 880 transitions. [2024-01-29 14:16:19,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 565 flow [2024-01-29 14:16:19,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 138 transitions, 550 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:16:19,760 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2024-01-29 14:16:19,761 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} [2024-01-29 14:16:19,761 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -81 predicate places. [2024-01-29 14:16:19,761 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2024-01-29 14:16:19,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 4 states have internal predecessors, (826), 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) [2024-01-29 14:16:19,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 111 remaining) [2024-01-29 14:16:19,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 111 remaining) [2024-01-29 14:16:19,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 111 remaining) [2024-01-29 14:16:19,764 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (104 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 111 remaining) [2024-01-29 14:16:19,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 111 remaining) [2024-01-29 14:16:19,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 111 remaining) [2024-01-29 14:16:19,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 111 remaining) [2024-01-29 14:16:19,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 111 remaining) [2024-01-29 14:16:19,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (97 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 111 remaining) [2024-01-29 14:16:19,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (88 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 111 remaining) [2024-01-29 14:16:19,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (80 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (79 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr31ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 111 remaining) [2024-01-29 14:16:19,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr32ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION (70 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr28ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr34ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 111 remaining) [2024-01-29 14:16:19,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr30ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr29ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 111 remaining) [2024-01-29 14:16:19,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr25ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr26ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION (51 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 111 remaining) [2024-01-29 14:16:19,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (36 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 111 remaining) [2024-01-29 14:16:19,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr31ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr32ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr33ASSERT_VIOLATIONERROR_FUNCTION (27 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr28ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr34ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr30ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr29ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 111 remaining) [2024-01-29 14:16:19,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr25ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr26ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr27ASSERT_VIOLATIONERROR_FUNCTION (8 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 111 remaining) [2024-01-29 14:16:19,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 111 remaining) [2024-01-29 14:16:19,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-01-29 14:16:19,777 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, 1, 1, 1] [2024-01-29 14:16:19,781 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:19,781 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:19,784 INFO L503 ceAbstractionStarter]: Automizer considered 60 witness invariants [2024-01-29 14:16:19,784 INFO L504 ceAbstractionStarter]: WitnessConsidered=60 [2024-01-29 14:16:19,785 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:19 BasicIcfg [2024-01-29 14:16:19,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:19,785 INFO L158 Benchmark]: Toolchain (without parser) took 34247.73ms. Allocated memory was 172.0MB in the beginning and 4.3GB in the end (delta: 4.1GB). Free memory was 137.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-01-29 14:16:19,785 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:19,785 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:19,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.57ms. Allocated memory is still 172.0MB. Free memory was 137.9MB in the beginning and 121.0MB in the end (delta: 16.8MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:19,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.61ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 116.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 14:16:19,786 INFO L158 Benchmark]: Boogie Preprocessor took 94.61ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 111.4MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-29 14:16:19,786 INFO L158 Benchmark]: RCFGBuilder took 767.71ms. Allocated memory is still 172.0MB. Free memory was 111.4MB in the beginning and 122.0MB in the end (delta: -10.6MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-01-29 14:16:19,787 INFO L158 Benchmark]: TraceAbstraction took 32336.91ms. Allocated memory was 172.0MB in the beginning and 4.3GB in the end (delta: 4.1GB). Free memory was 122.0MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-01-29 14:16:19,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.57ms. Allocated memory is still 172.0MB. Free memory was 137.9MB in the beginning and 121.0MB in the end (delta: 16.8MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.61ms. Allocated memory is still 172.0MB. Free memory was 121.0MB in the beginning and 116.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.61ms. Allocated memory is still 172.0MB. Free memory was 116.8MB in the beginning and 111.4MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 767.71ms. Allocated memory is still 172.0MB. Free memory was 111.4MB in the beginning and 122.0MB in the end (delta: -10.6MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * TraceAbstraction took 32336.91ms. Allocated memory was 172.0MB in the beginning and 4.3GB in the end (delta: 4.1GB). Free memory was 122.0MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 2.3GB. 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: 32.2s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1996 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1651 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5819 IncrementalHoareTripleChecker+Invalid, 6014 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 104 mSDtfsCounter, 5819 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=20, InterpolantAutomatonStates: 100, 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, 750 NumberOfCodeBlocks, 750 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 727 ConstructedInterpolants, 0 QuantifiedInterpolants, 1150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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! [2024-01-29 14:16:19,809 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