./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 59af5db6 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-59af5db-m [2024-02-02 09:15:59,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:15:59,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:15:59,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:15:59,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:15:59,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:15:59,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:15:59,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:15:59,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:15:59,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:15:59,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:15:59,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:15:59,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:15:59,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:15:59,859 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:15:59,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:15:59,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:15:59,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:15:59,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:15:59,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:15:59,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:15:59,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:15:59,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:15:59,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:15:59,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:15:59,863 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:15:59,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:15:59,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:15:59,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:15:59,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:15:59,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:15:59,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:15:59,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:15:59,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:15:59,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:15:59,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:15:59,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:15:59,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:15:59,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:15:59,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:15:59,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:15:59,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:15:59,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:15:59,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:16:00,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:16:00,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:16:00,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:16:00,173 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:16:00,174 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:16:00,175 INFO L431 ainManager$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 [2024-02-02 09:16:00,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:16:00,365 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:16:00,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-02 09:16:01,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:16:01,982 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:16:01,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-02 09:16:02,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8a87405/52a8ae6b7b8d476486fdc21a2482be4e/FLAG3a9db3855 [2024-02-02 09:16:02,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8a87405/52a8ae6b7b8d476486fdc21a2482be4e [2024-02-02 09:16:02,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:16:02,032 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:16:02,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:16:02,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:16:02,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:16:02,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:16:00" (1/2) ... [2024-02-02 09:16:02,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a08a15 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:16:02, skipping insertion in model container [2024-02-02 09:16:02,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:16:00" (1/2) ... [2024-02-02 09:16:02,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6155e31d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:16:02, skipping insertion in model container [2024-02-02 09:16:02,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:16:02" (2/2) ... [2024-02-02 09:16:02,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a08a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:02, skipping insertion in model container [2024-02-02 09:16:02,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:16:02" (2/2) ... [2024-02-02 09:16:02,045 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:16:02,180 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:16:02,181 INFO L101 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))) && (expression == 0)) && (expression == 1) [2024-02-02 09:16:02,182 INFO L101 nessWitnessExtractor]: Location invariant before [L1760-L1760] (unsigned long )arg == 0UL [2024-02-02 09:16:02,182 INFO L101 nessWitnessExtractor]: Location invariant before [L1776-L1776] (pdev == 0) && (ldv_usb_state == 0) [2024-02-02 09:16:02,182 INFO L101 nessWitnessExtractor]: Location invariant after [L1735-L1736] error == -1 [2024-02-02 09:16:02,182 INFO L101 nessWitnessExtractor]: Location invariant before [L1764-L1766] (unsigned long )arg == 0UL [2024-02-02 09:16:02,183 INFO L101 nessWitnessExtractor]: Location invariant before [L1749-L1749] (unsigned long )arg == 0UL [2024-02-02 09:16:02,183 INFO L101 nessWitnessExtractor]: Location invariant before [L1793-L1793] (unsigned long )status == 0UL [2024-02-02 09:16:02,183 INFO L101 nessWitnessExtractor]: Location invariant before [L1780-L1780] (pdev == 1) && (ldv_usb_state == 0) [2024-02-02 09:16:02,183 INFO L101 nessWitnessExtractor]: Location invariant before [L1748-L1753] (unsigned long )arg == 0UL [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Location invariant before [L1773-L1773] (unsigned long )arg == 0UL [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Location invariant before [L1783-L1783] (pdev == 1) && (ldv_usb_state == 0) [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Location invariant before [L1746-L1768] (unsigned long )arg == 0UL [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Loop invariant at [L1745-L1769] (unsigned long )arg == 0UL [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Location invariant before [L1786-L1786] (pdev == 3) && (ldv_usb_state == 0) [2024-02-02 09:16:02,184 INFO L101 nessWitnessExtractor]: Location invariant before [L1706-L1706] (unsigned long )arg == 0UL [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant before [L1752-L1752] (probe_ret == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant before [L1759-L1759] (unsigned long )arg == 0UL [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant before [L1791-L1791] (unsigned long )status == 0UL [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant after [L1788-L1794] (unsigned long )status == 0UL [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant before [L1707-L1707] (unsigned long )arg == 0UL [2024-02-02 09:16:02,185 INFO L101 nessWitnessExtractor]: Location invariant before [L1732-L1733] ((((-128 <= error) && (-1 <= error)) && (error <= 0)) && (error <= 127)) && (error == -1 || error == 0) [2024-02-02 09:16:02,186 INFO L101 nessWitnessExtractor]: Location invariant before [L1705-L1711] (unsigned long )arg == 0UL [2024-02-02 09:16:02,186 INFO L101 nessWitnessExtractor]: Location invariant after [L1713-L1714] (unsigned long )arg == 0UL [2024-02-02 09:16:02,186 INFO L101 nessWitnessExtractor]: Location invariant before [L1756-L1761] (unsigned long )arg == 0UL [2024-02-02 09:16:02,187 INFO L101 nessWitnessExtractor]: Location invariant before [L1755-L1755] (unsigned long )arg == 0UL [2024-02-02 09:16:02,187 INFO L101 nessWitnessExtractor]: Location invariant after [L1770-L1771] (unsigned long )arg == 0UL [2024-02-02 09:16:02,187 INFO L101 nessWitnessExtractor]: Location invariant before [L1777-L1777] (pdev == 0) && (ldv_usb_state == 0) [2024-02-02 09:16:02,187 INFO L101 nessWitnessExtractor]: Location invariant before [L1779-L1782] (pdev == 1) && (ldv_usb_state == 0) [2024-02-02 09:16:02,187 INFO L101 nessWitnessExtractor]: Location invariant before [L1750-L1751] (((((-128 <= probe_ret) && (-1 <= probe_ret)) && (probe_ret <= 0)) && (probe_ret <= 127)) && ((unsigned long )arg == 0UL)) && (probe_ret == -1 || probe_ret == 0) [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Location invariant before [L1743-L1743] (unsigned long )arg == 0UL [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Location invariant before [L1757-L1757] (unsigned long )arg == 0UL [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Location invariant before [L1778-L1778] (pdev == 1) && (ldv_usb_state == 0) [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Loop invariant at [L1704-L1712] (unsigned long )arg == 0UL [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Location invariant before [L1792-L1792] (unsigned long )status == 0UL [2024-02-02 09:16:02,188 INFO L101 nessWitnessExtractor]: Location invariant before [L1763-L1763] (unsigned long )arg == 0UL [2024-02-02 09:16:02,189 INFO L101 nessWitnessExtractor]: Location invariant before [L1785-L1785] (pdev == 3) && (ldv_usb_state == 0) [2024-02-02 09:16:02,189 INFO L101 nessWitnessExtractor]: Location invariant before [L1747-L1747] (unsigned long )arg == 0UL [2024-02-02 09:16:02,189 INFO L101 nessWitnessExtractor]: Location invariant before [L1758-L1758] (unsigned long )arg == 0UL [2024-02-02 09:16:02,190 INFO L101 nessWitnessExtractor]: Location invariant before [L1784-L1784] (pdev == 3) && (ldv_usb_state == 0) [2024-02-02 09:16:02,190 INFO L101 nessWitnessExtractor]: Location invariant before [L1709-L1709] (unsigned long )arg == 0UL [2024-02-02 09:16:02,191 INFO L101 nessWitnessExtractor]: Location invariant before [L1726-L1726] (unsigned long )status == 0UL [2024-02-02 09:16:02,191 INFO L101 nessWitnessExtractor]: Location invariant before [L1734-L1734] error == 0 [2024-02-02 09:16:02,191 INFO L101 nessWitnessExtractor]: Location invariant before [L1772-L1772] (unsigned long )arg == 0UL [2024-02-02 09:16:02,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:16:02,958 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] [2024-02-02 09:16:03,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:16:03,024 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:16:03,064 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] [2024-02-02 09:16:03,064 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 [2024-02-02 09:16:03,128 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 [2024-02-02 09:16:03,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:16:03,257 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:16:03,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03 WrapperNode [2024-02-02 09:16:03,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:16:03,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:16:03,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:16:03,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:16:03,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,333 INFO L138 Inliner]: procedures = 487, calls = 48, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 266 [2024-02-02 09:16:03,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:16:03,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:16:03,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:16:03,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:16:03,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,376 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 3, 5, 2, 4]. 26 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 1, 5, 0, 0]. The 4 writes are split as follows [0, 1, 1, 0, 1, 1]. [2024-02-02 09:16:03,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:16:03,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:16:03,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:16:03,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:16:03,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (1/1) ... [2024-02-02 09:16:03,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:16:03,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:16:03,622 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) [2024-02-02 09:16:03,631 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 [2024-02-02 09:16:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-02-02 09:16:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 09:16:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-02-02 09:16:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-02 09:16:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:16:03,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-02-02 09:16:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:16:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:16:03,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:16:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:16:03,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 09:16:03,659 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:16:03,946 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:16:03,948 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:16:04,259 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:16:04,259 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:16:04,417 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:16:04,418 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-02 09:16:04,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:16:04 BoogieIcfgContainer [2024-02-02 09:16:04,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:16:04,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:16:04,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:16:04,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:16:04,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:16:00" (1/4) ... [2024-02-02 09:16:04,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33425eeb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:16:04, skipping insertion in model container [2024-02-02 09:16:04,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:16:02" (2/4) ... [2024-02-02 09:16:04,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33425eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:16:04, skipping insertion in model container [2024-02-02 09:16:04,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:16:03" (3/4) ... [2024-02-02 09:16:04,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33425eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:16:04, skipping insertion in model container [2024-02-02 09:16:04,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:16:04" (4/4) ... [2024-02-02 09:16:04,429 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-02-02 09:16:04,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:16:04,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-02-02 09:16:04,446 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:16:04,546 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-02-02 09:16:04,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 250 transitions, 527 flow [2024-02-02 09:16:04,663 INFO L124 PetriNetUnfolderBase]: 30/248 cut-off events. [2024-02-02 09:16:04,664 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-02 09:16:04,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 248 events. 30/248 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 794 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 189. Up to 11 conditions per place. [2024-02-02 09:16:04,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 250 transitions, 527 flow [2024-02-02 09:16:04,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 166 transitions, 348 flow [2024-02-02 09:16:04,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:16:04,695 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;@2dd184ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:16:04,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-02-02 09:16:04,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:16:04,698 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:16:04,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:16:04,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:04,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:16:04,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:04,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash 21331, now seen corresponding path program 1 times [2024-02-02 09:16:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:04,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372290430] [2024-02-02 09:16:04,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:04,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:05,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:05,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372290430] [2024-02-02 09:16:05,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372290430] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:16:05,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228618956] [2024-02-02 09:16:05,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:05,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:16:05,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:05,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:16:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:16:05,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 250 [2024-02-02 09:16:05,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 166 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2024-02-02 09:16:05,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:05,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 250 [2024-02-02 09:16:05,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:06,046 INFO L124 PetriNetUnfolderBase]: 2928/6694 cut-off events. [2024-02-02 09:16:06,056 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-02-02 09:16:06,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11124 conditions, 6694 events. 2928/6694 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 54636 event pairs, 2332 based on Foata normal form. 502/6113 useless extension candidates. Maximal degree in co-relation 10625. Up to 4386 conditions per place. [2024-02-02 09:16:06,159 INFO L140 encePairwiseOnDemand]: 238/250 looper letters, 66 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2024-02-02 09:16:06,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 464 flow [2024-02-02 09:16:06,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:16:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:16:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2024-02-02 09:16:06,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-02-02 09:16:06,182 INFO L175 Difference]: Start difference. First operand has 152 places, 166 transitions, 348 flow. Second operand 3 states and 489 transitions. [2024-02-02 09:16:06,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 464 flow [2024-02-02 09:16:06,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:06,196 INFO L231 Difference]: Finished difference. Result has 150 places, 156 transitions, 328 flow [2024-02-02 09:16:06,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=150, PETRI_TRANSITIONS=156} [2024-02-02 09:16:06,202 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2024-02-02 09:16:06,203 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 156 transitions, 328 flow [2024-02-02 09:16:06,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2024-02-02 09:16:06,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:06,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:16:06,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:16:06,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:06,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash 20519471, now seen corresponding path program 1 times [2024-02-02 09:16:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:06,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242687978] [2024-02-02 09:16:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:06,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:06,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242687978] [2024-02-02 09:16:06,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242687978] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:06,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:06,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:16:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726858461] [2024-02-02 09:16:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:06,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:06,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:06,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:06,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:06,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 250 [2024-02-02 09:16:06,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2024-02-02 09:16:06,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:06,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 250 [2024-02-02 09:16:06,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:07,439 INFO L124 PetriNetUnfolderBase]: 4259/9515 cut-off events. [2024-02-02 09:16:07,439 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-02-02 09:16:07,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15768 conditions, 9515 events. 4259/9515 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 80868 event pairs, 754 based on Foata normal form. 12/7882 useless extension candidates. Maximal degree in co-relation 15756. Up to 3335 conditions per place. [2024-02-02 09:16:07,502 INFO L140 encePairwiseOnDemand]: 234/250 looper letters, 114 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2024-02-02 09:16:07,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 206 transitions, 679 flow [2024-02-02 09:16:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:07,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 658 transitions. [2024-02-02 09:16:07,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.658 [2024-02-02 09:16:07,506 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 328 flow. Second operand 4 states and 658 transitions. [2024-02-02 09:16:07,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 206 transitions, 679 flow [2024-02-02 09:16:07,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 206 transitions, 675 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:07,511 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 386 flow [2024-02-02 09:16:07,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=386, PETRI_PLACES=150, PETRI_TRANSITIONS=157} [2024-02-02 09:16:07,512 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2024-02-02 09:16:07,513 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 386 flow [2024-02-02 09:16:07,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2024-02-02 09:16:07,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:07,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:16:07,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:16:07,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:07,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1755599939, now seen corresponding path program 1 times [2024-02-02 09:16:07,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:07,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382200146] [2024-02-02 09:16:07,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:07,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:07,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:07,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:07,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382200146] [2024-02-02 09:16:07,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382200146] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:07,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:07,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:07,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120023273] [2024-02-02 09:16:07,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:07,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:07,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:07,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:07,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-02-02 09:16:07,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 157 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2024-02-02 09:16:07,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:07,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-02-02 09:16:07,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:08,938 INFO L124 PetriNetUnfolderBase]: 5217/12118 cut-off events. [2024-02-02 09:16:08,939 INFO L125 PetriNetUnfolderBase]: For 1149/1149 co-relation queries the response was YES. [2024-02-02 09:16:08,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21136 conditions, 12118 events. 5217/12118 cut-off events. For 1149/1149 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 104204 event pairs, 1777 based on Foata normal form. 0/10148 useless extension candidates. Maximal degree in co-relation 7672. Up to 4541 conditions per place. [2024-02-02 09:16:09,010 INFO L140 encePairwiseOnDemand]: 237/250 looper letters, 105 selfloop transitions, 13 changer transitions 1/200 dead transitions. [2024-02-02 09:16:09,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 200 transitions, 733 flow [2024-02-02 09:16:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 813 transitions. [2024-02-02 09:16:09,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6504 [2024-02-02 09:16:09,013 INFO L175 Difference]: Start difference. First operand has 150 places, 157 transitions, 386 flow. Second operand 5 states and 813 transitions. [2024-02-02 09:16:09,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 200 transitions, 733 flow [2024-02-02 09:16:09,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 200 transitions, 733 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:16:09,023 INFO L231 Difference]: Finished difference. Result has 151 places, 156 transitions, 429 flow [2024-02-02 09:16:09,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=151, PETRI_TRANSITIONS=156} [2024-02-02 09:16:09,025 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -1 predicate places. [2024-02-02 09:16:09,025 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 156 transitions, 429 flow [2024-02-02 09:16:09,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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) [2024-02-02 09:16:09,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:09,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:16:09,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:16:09,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:09,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash -468855552, now seen corresponding path program 1 times [2024-02-02 09:16:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:09,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577014441] [2024-02-02 09:16:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:09,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:09,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:09,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577014441] [2024-02-02 09:16:09,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577014441] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:09,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:09,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:16:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607897988] [2024-02-02 09:16:09,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:09,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:09,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:09,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:09,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:09,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 250 [2024-02-02 09:16:09,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 156 transitions, 429 flow. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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) [2024-02-02 09:16:09,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:09,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 250 [2024-02-02 09:16:09,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:10,587 INFO L124 PetriNetUnfolderBase]: 6147/14192 cut-off events. [2024-02-02 09:16:10,587 INFO L125 PetriNetUnfolderBase]: For 3913/3949 co-relation queries the response was YES. [2024-02-02 09:16:10,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26285 conditions, 14192 events. 6147/14192 cut-off events. For 3913/3949 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 123213 event pairs, 2985 based on Foata normal form. 2/11808 useless extension candidates. Maximal degree in co-relation 10554. Up to 5576 conditions per place. [2024-02-02 09:16:10,666 INFO L140 encePairwiseOnDemand]: 241/250 looper letters, 89 selfloop transitions, 6 changer transitions 6/175 dead transitions. [2024-02-02 09:16:10,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 175 transitions, 676 flow [2024-02-02 09:16:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 624 transitions. [2024-02-02 09:16:10,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.624 [2024-02-02 09:16:10,668 INFO L175 Difference]: Start difference. First operand has 151 places, 156 transitions, 429 flow. Second operand 4 states and 624 transitions. [2024-02-02 09:16:10,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 175 transitions, 676 flow [2024-02-02 09:16:10,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 175 transitions, 658 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:16:10,676 INFO L231 Difference]: Finished difference. Result has 148 places, 147 transitions, 400 flow [2024-02-02 09:16:10,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=400, PETRI_PLACES=148, PETRI_TRANSITIONS=147} [2024-02-02 09:16:10,677 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2024-02-02 09:16:10,677 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 147 transitions, 400 flow [2024-02-02 09:16:10,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 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) [2024-02-02 09:16:10,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:10,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:16:10,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:16:10,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:10,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:10,679 INFO L85 PathProgramCache]: Analyzing trace with hash 402239973, now seen corresponding path program 1 times [2024-02-02 09:16:10,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:10,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589005812] [2024-02-02 09:16:10,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:10,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:10,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:10,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589005812] [2024-02-02 09:16:10,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589005812] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:10,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:10,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:10,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362622620] [2024-02-02 09:16:10,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:10,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:10,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:10,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:11,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 250 [2024-02-02 09:16:11,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 147 transitions, 400 flow. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2024-02-02 09:16:11,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:11,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 250 [2024-02-02 09:16:11,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:12,066 INFO L124 PetriNetUnfolderBase]: 4936/11186 cut-off events. [2024-02-02 09:16:12,066 INFO L125 PetriNetUnfolderBase]: For 1992/2028 co-relation queries the response was YES. [2024-02-02 09:16:12,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20134 conditions, 11186 events. 4936/11186 cut-off events. For 1992/2028 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 94126 event pairs, 1817 based on Foata normal form. 720/10139 useless extension candidates. Maximal degree in co-relation 8619. Up to 7181 conditions per place. [2024-02-02 09:16:12,135 INFO L140 encePairwiseOnDemand]: 230/250 looper letters, 67 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-02-02 09:16:12,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 512 flow [2024-02-02 09:16:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 599 transitions. [2024-02-02 09:16:12,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.599 [2024-02-02 09:16:12,138 INFO L175 Difference]: Start difference. First operand has 148 places, 147 transitions, 400 flow. Second operand 4 states and 599 transitions. [2024-02-02 09:16:12,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 512 flow [2024-02-02 09:16:12,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 134 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:12,144 INFO L231 Difference]: Finished difference. Result has 124 places, 129 transitions, 356 flow [2024-02-02 09:16:12,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=124, PETRI_TRANSITIONS=129} [2024-02-02 09:16:12,145 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -28 predicate places. [2024-02-02 09:16:12,146 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 129 transitions, 356 flow [2024-02-02 09:16:12,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2024-02-02 09:16:12,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:12,147 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] [2024-02-02 09:16:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:16:12,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:12,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash -8045397, now seen corresponding path program 1 times [2024-02-02 09:16:12,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:12,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811682742] [2024-02-02 09:16:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:12,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811682742] [2024-02-02 09:16:12,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811682742] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:12,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:12,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180938736] [2024-02-02 09:16:12,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:12,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:12,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:12,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:12,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:12,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-02-02 09:16:12,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 129 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2024-02-02 09:16:12,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:12,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-02-02 09:16:12,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:14,124 INFO L124 PetriNetUnfolderBase]: 9527/21044 cut-off events. [2024-02-02 09:16:14,125 INFO L125 PetriNetUnfolderBase]: For 3141/3165 co-relation queries the response was YES. [2024-02-02 09:16:14,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38276 conditions, 21044 events. 9527/21044 cut-off events. For 3141/3165 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 186855 event pairs, 4377 based on Foata normal form. 138/18081 useless extension candidates. Maximal degree in co-relation 38238. Up to 7982 conditions per place. [2024-02-02 09:16:14,287 INFO L140 encePairwiseOnDemand]: 244/250 looper letters, 125 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2024-02-02 09:16:14,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 193 transitions, 781 flow [2024-02-02 09:16:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 707 transitions. [2024-02-02 09:16:14,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.707 [2024-02-02 09:16:14,290 INFO L175 Difference]: Start difference. First operand has 124 places, 129 transitions, 356 flow. Second operand 4 states and 707 transitions. [2024-02-02 09:16:14,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 193 transitions, 781 flow [2024-02-02 09:16:14,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 193 transitions, 778 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:14,299 INFO L231 Difference]: Finished difference. Result has 127 places, 132 transitions, 383 flow [2024-02-02 09:16:14,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=127, PETRI_TRANSITIONS=132} [2024-02-02 09:16:14,302 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -25 predicate places. [2024-02-02 09:16:14,302 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 132 transitions, 383 flow [2024-02-02 09:16:14,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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) [2024-02-02 09:16:14,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:14,303 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] [2024-02-02 09:16:14,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:16:14,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:14,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash -249338999, now seen corresponding path program 1 times [2024-02-02 09:16:14,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:14,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752108866] [2024-02-02 09:16:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:14,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:14,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:14,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752108866] [2024-02-02 09:16:14,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752108866] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:14,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:14,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:14,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409231043] [2024-02-02 09:16:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:14,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:14,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:14,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:14,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:14,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-02-02 09:16:14,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 132 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2024-02-02 09:16:14,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:14,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-02-02 09:16:14,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:16,344 INFO L124 PetriNetUnfolderBase]: 9782/21010 cut-off events. [2024-02-02 09:16:16,345 INFO L125 PetriNetUnfolderBase]: For 4438/4456 co-relation queries the response was YES. [2024-02-02 09:16:16,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40382 conditions, 21010 events. 9782/21010 cut-off events. For 4438/4456 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 177518 event pairs, 3071 based on Foata normal form. 766/19089 useless extension candidates. Maximal degree in co-relation 40343. Up to 12152 conditions per place. [2024-02-02 09:16:16,456 INFO L140 encePairwiseOnDemand]: 242/250 looper letters, 125 selfloop transitions, 3 changer transitions 2/189 dead transitions. [2024-02-02 09:16:16,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 189 transitions, 814 flow [2024-02-02 09:16:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:16,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 687 transitions. [2024-02-02 09:16:16,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.687 [2024-02-02 09:16:16,459 INFO L175 Difference]: Start difference. First operand has 127 places, 132 transitions, 383 flow. Second operand 4 states and 687 transitions. [2024-02-02 09:16:16,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 189 transitions, 814 flow [2024-02-02 09:16:16,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 189 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:16:16,474 INFO L231 Difference]: Finished difference. Result has 123 places, 127 transitions, 380 flow [2024-02-02 09:16:16,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=380, PETRI_PLACES=123, PETRI_TRANSITIONS=127} [2024-02-02 09:16:16,475 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -29 predicate places. [2024-02-02 09:16:16,475 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 127 transitions, 380 flow [2024-02-02 09:16:16,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2024-02-02 09:16:16,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:16,476 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] [2024-02-02 09:16:16,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:16:16,476 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:16,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:16,478 INFO L85 PathProgramCache]: Analyzing trace with hash 860511498, now seen corresponding path program 1 times [2024-02-02 09:16:16,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:16,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263527338] [2024-02-02 09:16:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:16,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:16,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263527338] [2024-02-02 09:16:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263527338] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:16,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:16,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048665131] [2024-02-02 09:16:16,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:16,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:16,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:16,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:16,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 250 [2024-02-02 09:16:16,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 127 transitions, 380 flow. Second operand has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 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) [2024-02-02 09:16:16,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:16,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 250 [2024-02-02 09:16:16,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:18,134 INFO L124 PetriNetUnfolderBase]: 8674/18294 cut-off events. [2024-02-02 09:16:18,134 INFO L125 PetriNetUnfolderBase]: For 4104/4140 co-relation queries the response was YES. [2024-02-02 09:16:18,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35666 conditions, 18294 events. 8674/18294 cut-off events. For 4104/4140 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 153722 event pairs, 3709 based on Foata normal form. 336/16303 useless extension candidates. Maximal degree in co-relation 35627. Up to 6461 conditions per place. [2024-02-02 09:16:18,251 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 127 selfloop transitions, 4 changer transitions 0/188 dead transitions. [2024-02-02 09:16:18,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 188 transitions, 815 flow [2024-02-02 09:16:18,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 702 transitions. [2024-02-02 09:16:18,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.702 [2024-02-02 09:16:18,255 INFO L175 Difference]: Start difference. First operand has 123 places, 127 transitions, 380 flow. Second operand 4 states and 702 transitions. [2024-02-02 09:16:18,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 188 transitions, 815 flow [2024-02-02 09:16:18,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 188 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:16:18,268 INFO L231 Difference]: Finished difference. Result has 125 places, 126 transitions, 393 flow [2024-02-02 09:16:18,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=393, PETRI_PLACES=125, PETRI_TRANSITIONS=126} [2024-02-02 09:16:18,270 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -27 predicate places. [2024-02-02 09:16:18,270 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 126 transitions, 393 flow [2024-02-02 09:16:18,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 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) [2024-02-02 09:16:18,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:18,271 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] [2024-02-02 09:16:18,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:16:18,272 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:18,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash 838619528, now seen corresponding path program 1 times [2024-02-02 09:16:18,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:18,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337938689] [2024-02-02 09:16:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:18,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:18,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:18,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337938689] [2024-02-02 09:16:18,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337938689] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:18,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:18,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:18,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272302728] [2024-02-02 09:16:18,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:18,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:16:18,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:18,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:16:18,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:16:18,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 250 [2024-02-02 09:16:18,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 126 transitions, 393 flow. Second operand has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 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) [2024-02-02 09:16:18,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:18,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 250 [2024-02-02 09:16:18,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:19,862 INFO L124 PetriNetUnfolderBase]: 7781/15105 cut-off events. [2024-02-02 09:16:19,862 INFO L125 PetriNetUnfolderBase]: For 4335/4353 co-relation queries the response was YES. [2024-02-02 09:16:19,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31095 conditions, 15105 events. 7781/15105 cut-off events. For 4335/4353 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 116091 event pairs, 2662 based on Foata normal form. 132/13516 useless extension candidates. Maximal degree in co-relation 31027. Up to 9339 conditions per place. [2024-02-02 09:16:19,949 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 124 selfloop transitions, 3 changer transitions 0/175 dead transitions. [2024-02-02 09:16:19,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 175 transitions, 760 flow [2024-02-02 09:16:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2024-02-02 09:16:19,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576 [2024-02-02 09:16:19,953 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 393 flow. Second operand 5 states and 720 transitions. [2024-02-02 09:16:19,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 175 transitions, 760 flow [2024-02-02 09:16:19,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 175 transitions, 749 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:19,967 INFO L231 Difference]: Finished difference. Result has 128 places, 125 transitions, 389 flow [2024-02-02 09:16:19,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2024-02-02 09:16:19,968 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -24 predicate places. [2024-02-02 09:16:19,968 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 389 flow [2024-02-02 09:16:19,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.2) internal successors, (621), 5 states have internal predecessors, (621), 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) [2024-02-02 09:16:19,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:19,969 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] [2024-02-02 09:16:19,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 09:16:19,969 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr23ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:19,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:19,970 INFO L85 PathProgramCache]: Analyzing trace with hash 298554490, now seen corresponding path program 1 times [2024-02-02 09:16:19,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:19,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227742486] [2024-02-02 09:16:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:20,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227742486] [2024-02-02 09:16:20,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227742486] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:20,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:20,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572550158] [2024-02-02 09:16:20,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:20,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:20,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:20,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:20,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-02-02 09:16:20,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 389 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2024-02-02 09:16:20,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:20,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-02-02 09:16:20,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:21,700 INFO L124 PetriNetUnfolderBase]: 8160/16340 cut-off events. [2024-02-02 09:16:21,701 INFO L125 PetriNetUnfolderBase]: For 4888/4894 co-relation queries the response was YES. [2024-02-02 09:16:21,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33387 conditions, 16340 events. 8160/16340 cut-off events. For 4888/4894 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 129896 event pairs, 4603 based on Foata normal form. 0/14569 useless extension candidates. Maximal degree in co-relation 33345. Up to 8591 conditions per place. [2024-02-02 09:16:21,796 INFO L140 encePairwiseOnDemand]: 241/250 looper letters, 119 selfloop transitions, 12 changer transitions 0/182 dead transitions. [2024-02-02 09:16:21,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 182 transitions, 778 flow [2024-02-02 09:16:21,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 828 transitions. [2024-02-02 09:16:21,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6624 [2024-02-02 09:16:21,803 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 389 flow. Second operand 5 states and 828 transitions. [2024-02-02 09:16:21,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 182 transitions, 778 flow [2024-02-02 09:16:21,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 182 transitions, 773 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:16:21,822 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 466 flow [2024-02-02 09:16:21,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=466, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2024-02-02 09:16:21,824 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -19 predicate places. [2024-02-02 09:16:21,824 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 466 flow [2024-02-02 09:16:21,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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) [2024-02-02 09:16:21,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:21,825 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] [2024-02-02 09:16:21,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-02 09:16:21,825 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:21,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1627569358, now seen corresponding path program 1 times [2024-02-02 09:16:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:21,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167345872] [2024-02-02 09:16:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:21,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:21,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167345872] [2024-02-02 09:16:21,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167345872] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:21,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:21,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:21,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296492722] [2024-02-02 09:16:21,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:21,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:16:21,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:22,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:16:22,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:16:22,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 250 [2024-02-02 09:16:22,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 466 flow. Second operand has 5 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 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) [2024-02-02 09:16:22,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:22,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 250 [2024-02-02 09:16:22,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:23,784 INFO L124 PetriNetUnfolderBase]: 9870/18898 cut-off events. [2024-02-02 09:16:23,785 INFO L125 PetriNetUnfolderBase]: For 7944/8136 co-relation queries the response was YES. [2024-02-02 09:16:23,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41570 conditions, 18898 events. 9870/18898 cut-off events. For 7944/8136 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 144947 event pairs, 1728 based on Foata normal form. 366/17370 useless extension candidates. Maximal degree in co-relation 41499. Up to 7570 conditions per place. [2024-02-02 09:16:23,878 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 167 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-02-02 09:16:23,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 220 transitions, 1092 flow [2024-02-02 09:16:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-02 09:16:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-02 09:16:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2024-02-02 09:16:23,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576 [2024-02-02 09:16:23,881 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 466 flow. Second operand 6 states and 864 transitions. [2024-02-02 09:16:23,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 220 transitions, 1092 flow [2024-02-02 09:16:23,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 220 transitions, 1076 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-02-02 09:16:23,932 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 495 flow [2024-02-02 09:16:23,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=495, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2024-02-02 09:16:23,933 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-02-02 09:16:23,933 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 495 flow [2024-02-02 09:16:23,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 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) [2024-02-02 09:16:23,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:23,934 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] [2024-02-02 09:16:23,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-02 09:16:23,934 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:23,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1211410140, now seen corresponding path program 1 times [2024-02-02 09:16:23,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:23,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573424649] [2024-02-02 09:16:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:23,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:24,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573424649] [2024-02-02 09:16:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573424649] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311220408] [2024-02-02 09:16:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:24,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:16:24,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:24,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:16:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:16:24,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-02-02 09:16:24,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-02-02 09:16:24,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:24,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-02-02 09:16:24,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:25,597 INFO L124 PetriNetUnfolderBase]: 7844/15371 cut-off events. [2024-02-02 09:16:25,597 INFO L125 PetriNetUnfolderBase]: For 11155/11383 co-relation queries the response was YES. [2024-02-02 09:16:25,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35421 conditions, 15371 events. 7844/15371 cut-off events. For 11155/11383 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 116863 event pairs, 5410 based on Foata normal form. 36/13762 useless extension candidates. Maximal degree in co-relation 35372. Up to 10156 conditions per place. [2024-02-02 09:16:25,667 INFO L140 encePairwiseOnDemand]: 247/250 looper letters, 104 selfloop transitions, 6 changer transitions 2/166 dead transitions. [2024-02-02 09:16:25,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 166 transitions, 863 flow [2024-02-02 09:16:25,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:16:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:16:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2024-02-02 09:16:25,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.704 [2024-02-02 09:16:25,669 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 495 flow. Second operand 3 states and 528 transitions. [2024-02-02 09:16:25,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 166 transitions, 863 flow [2024-02-02 09:16:25,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 166 transitions, 858 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-02-02 09:16:25,706 INFO L231 Difference]: Finished difference. Result has 138 places, 129 transitions, 498 flow [2024-02-02 09:16:25,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=138, PETRI_TRANSITIONS=129} [2024-02-02 09:16:25,707 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -14 predicate places. [2024-02-02 09:16:25,707 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 129 transitions, 498 flow [2024-02-02 09:16:25,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-02-02 09:16:25,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:25,707 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] [2024-02-02 09:16:25,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-02 09:16:25,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:25,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1058025257, now seen corresponding path program 1 times [2024-02-02 09:16:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:25,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715186700] [2024-02-02 09:16:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:25,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:26,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:26,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715186700] [2024-02-02 09:16:26,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715186700] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:26,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:26,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:26,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948625744] [2024-02-02 09:16:26,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:26,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:16:26,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:26,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:16:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:16:26,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2024-02-02 09:16:26,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 129 transitions, 498 flow. Second operand has 5 states, 5 states have (on average 151.6) internal successors, (758), 5 states have internal predecessors, (758), 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) [2024-02-02 09:16:26,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:26,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2024-02-02 09:16:26,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:27,932 INFO L124 PetriNetUnfolderBase]: 7361/14915 cut-off events. [2024-02-02 09:16:27,933 INFO L125 PetriNetUnfolderBase]: For 11642/11852 co-relation queries the response was YES. [2024-02-02 09:16:27,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34842 conditions, 14915 events. 7361/14915 cut-off events. For 11642/11852 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 116505 event pairs, 5261 based on Foata normal form. 42/13453 useless extension candidates. Maximal degree in co-relation 34793. Up to 9715 conditions per place. [2024-02-02 09:16:28,004 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 110 selfloop transitions, 4 changer transitions 1/169 dead transitions. [2024-02-02 09:16:28,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 169 transitions, 862 flow [2024-02-02 09:16:28,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:28,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 832 transitions. [2024-02-02 09:16:28,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6656 [2024-02-02 09:16:28,007 INFO L175 Difference]: Start difference. First operand has 138 places, 129 transitions, 498 flow. Second operand 5 states and 832 transitions. [2024-02-02 09:16:28,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 169 transitions, 862 flow [2024-02-02 09:16:28,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 169 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:16:28,071 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 492 flow [2024-02-02 09:16:28,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=492, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2024-02-02 09:16:28,072 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-02-02 09:16:28,072 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 492 flow [2024-02-02 09:16:28,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.6) internal successors, (758), 5 states have internal predecessors, (758), 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) [2024-02-02 09:16:28,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:28,073 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] [2024-02-02 09:16:28,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-02 09:16:28,073 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:28,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1560956163, now seen corresponding path program 1 times [2024-02-02 09:16:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598606786] [2024-02-02 09:16:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:28,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:28,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:28,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598606786] [2024-02-02 09:16:28,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598606786] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:28,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:28,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-02 09:16:28,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917778628] [2024-02-02 09:16:28,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:28,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-02 09:16:28,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-02 09:16:28,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-02-02 09:16:28,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-02-02 09:16:28,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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) [2024-02-02 09:16:28,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:28,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-02-02 09:16:28,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:29,949 INFO L124 PetriNetUnfolderBase]: 7480/15506 cut-off events. [2024-02-02 09:16:29,949 INFO L125 PetriNetUnfolderBase]: For 10510/10654 co-relation queries the response was YES. [2024-02-02 09:16:29,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35898 conditions, 15506 events. 7480/15506 cut-off events. For 10510/10654 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 124849 event pairs, 5188 based on Foata normal form. 50/14063 useless extension candidates. Maximal degree in co-relation 35849. Up to 9564 conditions per place. [2024-02-02 09:16:30,251 INFO L140 encePairwiseOnDemand]: 244/250 looper letters, 120 selfloop transitions, 6 changer transitions 1/180 dead transitions. [2024-02-02 09:16:30,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 180 transitions, 898 flow [2024-02-02 09:16:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-02 09:16:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-02 09:16:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 984 transitions. [2024-02-02 09:16:30,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.656 [2024-02-02 09:16:30,254 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 492 flow. Second operand 6 states and 984 transitions. [2024-02-02 09:16:30,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 180 transitions, 898 flow [2024-02-02 09:16:30,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 180 transitions, 890 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:16:30,317 INFO L231 Difference]: Finished difference. Result has 139 places, 127 transitions, 494 flow [2024-02-02 09:16:30,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=139, PETRI_TRANSITIONS=127} [2024-02-02 09:16:30,318 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-02-02 09:16:30,318 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 127 transitions, 494 flow [2024-02-02 09:16:30,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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) [2024-02-02 09:16:30,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:30,319 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] [2024-02-02 09:16:30,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-02-02 09:16:30,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:30,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1145001451, now seen corresponding path program 1 times [2024-02-02 09:16:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842244836] [2024-02-02 09:16:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:30,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:30,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842244836] [2024-02-02 09:16:30,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842244836] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:30,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:30,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-02-02 09:16:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606471059] [2024-02-02 09:16:30,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:30,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-02-02 09:16:30,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-02-02 09:16:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-02-02 09:16:30,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-02-02 09:16:30,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 127 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 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) [2024-02-02 09:16:30,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:30,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-02-02 09:16:30,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:32,448 INFO L124 PetriNetUnfolderBase]: 7361/14837 cut-off events. [2024-02-02 09:16:32,448 INFO L125 PetriNetUnfolderBase]: For 10198/10408 co-relation queries the response was YES. [2024-02-02 09:16:32,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34620 conditions, 14837 events. 7361/14837 cut-off events. For 10198/10408 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 115235 event pairs, 5261 based on Foata normal form. 42/13375 useless extension candidates. Maximal degree in co-relation 34571. Up to 9715 conditions per place. [2024-02-02 09:16:32,528 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 130 selfloop transitions, 7 changer transitions 1/190 dead transitions. [2024-02-02 09:16:32,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 190 transitions, 952 flow [2024-02-02 09:16:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-02 09:16:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-02 09:16:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1141 transitions. [2024-02-02 09:16:32,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-02-02 09:16:32,531 INFO L175 Difference]: Start difference. First operand has 139 places, 127 transitions, 494 flow. Second operand 7 states and 1141 transitions. [2024-02-02 09:16:32,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 190 transitions, 952 flow [2024-02-02 09:16:32,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 190 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-02-02 09:16:32,582 INFO L231 Difference]: Finished difference. Result has 139 places, 126 transitions, 494 flow [2024-02-02 09:16:32,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=494, PETRI_PLACES=139, PETRI_TRANSITIONS=126} [2024-02-02 09:16:32,583 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-02-02 09:16:32,583 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 126 transitions, 494 flow [2024-02-02 09:16:32,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 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) [2024-02-02 09:16:32,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:32,584 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] [2024-02-02 09:16:32,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-02-02 09:16:32,584 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:32,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash 834790220, now seen corresponding path program 1 times [2024-02-02 09:16:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:32,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124124855] [2024-02-02 09:16:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:32,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:32,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124124855] [2024-02-02 09:16:32,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124124855] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:32,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:32,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:32,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014899141] [2024-02-02 09:16:32,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:32,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:32,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:32,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:32,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:32,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-02-02 09:16:32,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 126 transitions, 494 flow. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2024-02-02 09:16:32,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:32,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-02-02 09:16:32,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:34,137 INFO L124 PetriNetUnfolderBase]: 7894/16096 cut-off events. [2024-02-02 09:16:34,137 INFO L125 PetriNetUnfolderBase]: For 11800/11938 co-relation queries the response was YES. [2024-02-02 09:16:34,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37425 conditions, 16096 events. 7894/16096 cut-off events. For 11800/11938 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 128153 event pairs, 6116 based on Foata normal form. 0/14535 useless extension candidates. Maximal degree in co-relation 37375. Up to 11343 conditions per place. [2024-02-02 09:16:34,211 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 103 selfloop transitions, 8 changer transitions 5/162 dead transitions. [2024-02-02 09:16:34,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 162 transitions, 824 flow [2024-02-02 09:16:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 795 transitions. [2024-02-02 09:16:34,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.636 [2024-02-02 09:16:34,213 INFO L175 Difference]: Start difference. First operand has 139 places, 126 transitions, 494 flow. Second operand 5 states and 795 transitions. [2024-02-02 09:16:34,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 162 transitions, 824 flow [2024-02-02 09:16:34,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 162 transitions, 808 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-02 09:16:34,273 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 527 flow [2024-02-02 09:16:34,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=141, PETRI_TRANSITIONS=128} [2024-02-02 09:16:34,274 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -11 predicate places. [2024-02-02 09:16:34,274 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 527 flow [2024-02-02 09:16:34,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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) [2024-02-02 09:16:34,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:34,274 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] [2024-02-02 09:16:34,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-02-02 09:16:34,275 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:34,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash 34175640, now seen corresponding path program 1 times [2024-02-02 09:16:34,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:34,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138291967] [2024-02-02 09:16:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:34,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:34,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138291967] [2024-02-02 09:16:34,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138291967] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:34,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:34,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:16:34,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814681213] [2024-02-02 09:16:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:34,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:16:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:16:34,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:16:34,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-02-02 09:16:34,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 128 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2024-02-02 09:16:34,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:34,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-02-02 09:16:34,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:35,216 INFO L124 PetriNetUnfolderBase]: 3868/7856 cut-off events. [2024-02-02 09:16:35,217 INFO L125 PetriNetUnfolderBase]: For 6724/6736 co-relation queries the response was YES. [2024-02-02 09:16:35,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17119 conditions, 7856 events. 3868/7856 cut-off events. For 6724/6736 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 52724 event pairs, 1712 based on Foata normal form. 342/7269 useless extension candidates. Maximal degree in co-relation 17074. Up to 2846 conditions per place. [2024-02-02 09:16:35,251 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 77 selfloop transitions, 3 changer transitions 18/131 dead transitions. [2024-02-02 09:16:35,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 652 flow [2024-02-02 09:16:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:16:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:16:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2024-02-02 09:16:35,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6706666666666666 [2024-02-02 09:16:35,254 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 527 flow. Second operand 3 states and 503 transitions. [2024-02-02 09:16:35,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 652 flow [2024-02-02 09:16:35,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 131 transitions, 578 flow, removed 10 selfloop flow, removed 19 redundant places. [2024-02-02 09:16:35,273 INFO L231 Difference]: Finished difference. Result has 120 places, 92 transitions, 298 flow [2024-02-02 09:16:35,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=120, PETRI_TRANSITIONS=92} [2024-02-02 09:16:35,274 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -32 predicate places. [2024-02-02 09:16:35,274 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 92 transitions, 298 flow [2024-02-02 09:16:35,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 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) [2024-02-02 09:16:35,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:35,275 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] [2024-02-02 09:16:35,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-02-02 09:16:35,275 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:35,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:35,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2039001979, now seen corresponding path program 1 times [2024-02-02 09:16:35,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:35,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37957736] [2024-02-02 09:16:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:16:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37957736] [2024-02-02 09:16:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37957736] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:35,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423800816] [2024-02-02 09:16:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:35,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:16:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:16:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:16:35,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2024-02-02 09:16:35,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 92 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 153.4) internal successors, (767), 5 states have internal predecessors, (767), 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) [2024-02-02 09:16:35,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:35,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2024-02-02 09:16:35,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:36,544 INFO L124 PetriNetUnfolderBase]: 3588/7354 cut-off events. [2024-02-02 09:16:36,544 INFO L125 PetriNetUnfolderBase]: For 4720/4726 co-relation queries the response was YES. [2024-02-02 09:16:36,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15334 conditions, 7354 events. 3588/7354 cut-off events. For 4720/4726 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 49586 event pairs, 2476 based on Foata normal form. 0/6457 useless extension candidates. Maximal degree in co-relation 15291. Up to 4392 conditions per place. [2024-02-02 09:16:36,589 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-02-02 09:16:36,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 121 transitions, 568 flow [2024-02-02 09:16:36,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:16:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:16:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 813 transitions. [2024-02-02 09:16:36,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6504 [2024-02-02 09:16:36,592 INFO L175 Difference]: Start difference. First operand has 120 places, 92 transitions, 298 flow. Second operand 5 states and 813 transitions. [2024-02-02 09:16:36,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 121 transitions, 568 flow [2024-02-02 09:16:36,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 121 transitions, 533 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-02-02 09:16:36,600 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 287 flow [2024-02-02 09:16:36,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=287, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-02-02 09:16:36,601 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -53 predicate places. [2024-02-02 09:16:36,601 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 287 flow [2024-02-02 09:16:36,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.4) internal successors, (767), 5 states have internal predecessors, (767), 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) [2024-02-02 09:16:36,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:16:36,603 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] [2024-02-02 09:16:36,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-02-02 09:16:36,603 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr17ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-02 09:16:36,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:16:36,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1210421145, now seen corresponding path program 1 times [2024-02-02 09:16:36,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:16:36,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399881680] [2024-02-02 09:16:36,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:16:36,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:16:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:16:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-02-02 09:16:36,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:16:36,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399881680] [2024-02-02 09:16:36,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399881680] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:16:36,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:16:36,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:16:36,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918480294] [2024-02-02 09:16:36,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:16:36,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:16:36,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:16:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:16:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:16:36,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-02-02 09:16:36,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 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) [2024-02-02 09:16:36,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:16:36,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-02-02 09:16:36,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:16:37,912 INFO L124 PetriNetUnfolderBase]: 4773/9817 cut-off events. [2024-02-02 09:16:37,912 INFO L125 PetriNetUnfolderBase]: For 3604/3616 co-relation queries the response was YES. [2024-02-02 09:16:37,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19806 conditions, 9817 events. 4773/9817 cut-off events. For 3604/3616 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 68488 event pairs, 3228 based on Foata normal form. 0/8599 useless extension candidates. Maximal degree in co-relation 19767. Up to 4880 conditions per place. [2024-02-02 09:16:37,933 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 0 selfloop transitions, 0 changer transitions 125/125 dead transitions. [2024-02-02 09:16:37,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 125 transitions, 577 flow [2024-02-02 09:16:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:16:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:16:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 652 transitions. [2024-02-02 09:16:37,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-02-02 09:16:37,935 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 287 flow. Second operand 4 states and 652 transitions. [2024-02-02 09:16:37,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 125 transitions, 577 flow [2024-02-02 09:16:37,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 125 transitions, 562 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:16:37,944 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2024-02-02 09:16:37,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2024-02-02 09:16:37,945 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -56 predicate places. [2024-02-02 09:16:37,945 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2024-02-02 09:16:37,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.5) internal successors, (598), 4 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) [2024-02-02 09:16:37,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-02-02 09:16:37,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-02-02 09:16:37,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-02-02 09:16:37,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-02-02 09:16:37,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (75 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (71 of 82 remaining) [2024-02-02 09:16:37,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (66 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-02-02 09:16:37,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (60 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-02-02 09:16:37,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-02-02 09:16:37,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONERROR_FUNCTION (50 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-02-02 09:16:37,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 82 remaining) [2024-02-02 09:16:37,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONERROR_FUNCTION (34 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-02-02 09:16:37,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (26 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-02-02 09:16:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONERROR_FUNCTION (17 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-02-02 09:16:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-02-02 09:16:37,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONERROR_FUNCTION (1 of 82 remaining) [2024-02-02 09:16:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 82 remaining) [2024-02-02 09:16:37,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-02-02 09:16:37,960 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] [2024-02-02 09:16:37,967 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:16:37,968 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:16:37,972 INFO L503 ceAbstractionStarter]: Automizer considered 41 witness invariants [2024-02-02 09:16:37,973 INFO L504 ceAbstractionStarter]: WitnessConsidered=41 [2024-02-02 09:16:37,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:16:37 BasicIcfg [2024-02-02 09:16:37,974 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:16:37,975 INFO L158 Benchmark]: Toolchain (without parser) took 35942.02ms. Allocated memory was 136.3MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 99.8MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-02-02 09:16:37,975 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:16:37,975 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:16:37,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1223.04ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 95.2MB in the end (delta: 4.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-02-02 09:16:37,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.30ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 91.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:16:37,976 INFO L158 Benchmark]: Boogie Preprocessor took 99.18ms. Allocated memory is still 136.3MB. Free memory was 91.7MB in the beginning and 86.2MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:16:37,976 INFO L158 Benchmark]: RCFGBuilder took 978.29ms. Allocated memory is still 136.3MB. Free memory was 86.2MB in the beginning and 83.3MB in the end (delta: 2.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2024-02-02 09:16:37,977 INFO L158 Benchmark]: TraceAbstraction took 33553.30ms. Allocated memory was 136.3MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 82.6MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-02-02 09:16:37,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 98.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1223.04ms. Allocated memory is still 136.3MB. Free memory was 99.4MB in the beginning and 95.2MB in the end (delta: 4.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.30ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 91.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.18ms. Allocated memory is still 136.3MB. Free memory was 91.7MB in the beginning and 86.2MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 978.29ms. Allocated memory is still 136.3MB. Free memory was 86.2MB in the beginning and 83.3MB in the end (delta: 2.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * TraceAbstraction took 33553.30ms. Allocated memory was 136.3MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 82.6MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 2.1GB. 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: 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: 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: 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: 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: 1786]: 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: 1792]: 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: 1734]: 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: 1750]: 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: 1759]: 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: 1760]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 251 locations, 82 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: 33.4s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1845 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1491 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4950 IncrementalHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 140 mSDtfsCounter, 4950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=527occurred in iteration=16, InterpolantAutomatonStates: 86, 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, 3.1s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 505 ConstructedInterpolants, 0 QuantifiedInterpolants, 1180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:16:38,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE