./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 3d25acf6 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-3d25acf-m [2024-01-30 14:19:54,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:19:54,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:19:54,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:19:54,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:19:54,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:19:54,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:19:54,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:19:54,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:19:54,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:19:54,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:19:54,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:19:54,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:19:54,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:19:54,216 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:19:54,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:19:54,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:19:54,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:19:54,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:19:54,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:19:54,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:19:54,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:19:54,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:19:54,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:19:54,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:19:54,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:19:54,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:19:54,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:19:54,220 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:19:54,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:19:54,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:19:54,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:19:54,221 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:19:54,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:19:54,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:19:54,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:19:54,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:19:54,486 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:19:54,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-01-30 14:19:55,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:19:55,801 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:19:55,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-01-30 14:19:55,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659bca523/0ede60556c614956b58f94ed09d804a8/FLAGc5b0fa73a [2024-01-30 14:19:55,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659bca523/0ede60556c614956b58f94ed09d804a8 [2024-01-30 14:19:55,839 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:19:55,839 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:19:55,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml [2024-01-30 14:19:55,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:19:56,009 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:19:56,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:19:56,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:19:56,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:19:56,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:19:55" (1/2) ... [2024-01-30 14:19:56,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b20b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:19:56, skipping insertion in model container [2024-01-30 14:19:56,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:19:55" (1/2) ... [2024-01-30 14:19:56,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cc5cb72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:19:56, skipping insertion in model container [2024-01-30 14:19:56,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:19:55" (2/2) ... [2024-01-30 14:19:56,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b20b1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:56, skipping insertion in model container [2024-01-30 14:19:56,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:19:55" (2/2) ... [2024-01-30 14:19:56,019 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:19:56,164 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:19:56,165 INFO L98 nessWitnessExtractor]: Location invariant before [L1748-L1753] (unsigned long )arg == 0UL [2024-01-30 14:19:56,165 INFO L98 nessWitnessExtractor]: Location invariant before [L1747-L1747] (unsigned long )arg == 0UL [2024-01-30 14:19:56,165 INFO L98 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) [2024-01-30 14:19:56,165 INFO L98 nessWitnessExtractor]: Location invariant before [L1759-L1759] (unsigned long )arg == 0UL [2024-01-30 14:19:56,165 INFO L98 nessWitnessExtractor]: Location invariant before [L1793-L1793] (unsigned long )status == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant after [L1713-L1714] (unsigned long )arg == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1758-L1758] (unsigned long )arg == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1755-L1755] (unsigned long )arg == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1785-L1785] (pdev == 3) && (ldv_usb_state == 0) [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1726-L1726] (unsigned long )status == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1763-L1763] (unsigned long )arg == 0UL [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1783-L1783] (pdev == 1) && (ldv_usb_state == 0) [2024-01-30 14:19:56,166 INFO L98 nessWitnessExtractor]: Location invariant before [L1707-L1707] (unsigned long )arg == 0UL [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1743-L1743] (unsigned long )arg == 0UL [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1732-L1733] ((((-128 <= error) && (-1 <= error)) && (error <= 0)) && (error <= 127)) && (error == -1 || error == 0) [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant after [L1770-L1771] (unsigned long )arg == 0UL [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1764-L1766] (unsigned long )arg == 0UL [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] ((((((((((((0 <= pdev && 1 <= pdev) && pdev <= 3) && pdev <= 127) && expression == 1) && ldv_usb_state == 0) && pdev % 2 == 1) && pdev != 0) && (pdev == 1 || pdev == 3)) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) && (expression == 0)) && (expression == 1) [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1786-L1786] (pdev == 3) && (ldv_usb_state == 0) [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant after [L1788-L1794] (unsigned long )status == 0UL [2024-01-30 14:19:56,167 INFO L98 nessWitnessExtractor]: Location invariant before [L1776-L1776] (pdev == 0) && (ldv_usb_state == 0) [2024-01-30 14:19:56,168 INFO L98 nessWitnessExtractor]: Location invariant before [L1772-L1772] (unsigned long )arg == 0UL [2024-01-30 14:19:56,168 INFO L98 nessWitnessExtractor]: Location invariant before [L1792-L1792] (unsigned long )status == 0UL [2024-01-30 14:19:56,168 INFO L98 nessWitnessExtractor]: Location invariant before [L1791-L1791] (unsigned long )status == 0UL [2024-01-30 14:19:56,168 INFO L98 nessWitnessExtractor]: Location invariant before [L1778-L1778] (pdev == 1) && (ldv_usb_state == 0) [2024-01-30 14:19:56,169 INFO L98 nessWitnessExtractor]: Location invariant before [L1784-L1784] (pdev == 3) && (ldv_usb_state == 0) [2024-01-30 14:19:56,169 INFO L98 nessWitnessExtractor]: Location invariant before [L1734-L1734] error == 0 [2024-01-30 14:19:56,169 INFO L98 nessWitnessExtractor]: Location invariant before [L1773-L1773] (unsigned long )arg == 0UL [2024-01-30 14:19:56,169 INFO L98 nessWitnessExtractor]: Location invariant after [L1735-L1736] error == -1 [2024-01-30 14:19:56,169 INFO L98 nessWitnessExtractor]: Location invariant before [L1780-L1780] (pdev == 1) && (ldv_usb_state == 0) [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Loop invariant at [L1704-L1712] (unsigned long )arg == 0UL [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Location invariant before [L1779-L1782] (pdev == 1) && (ldv_usb_state == 0) [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Location invariant before [L1760-L1760] (unsigned long )arg == 0UL [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Location invariant before [L1752-L1752] (probe_ret == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] (unsigned long )arg == 0UL [2024-01-30 14:19:56,170 INFO L98 nessWitnessExtractor]: Location invariant before [L1757-L1757] (unsigned long )arg == 0UL [2024-01-30 14:19:56,171 INFO L98 nessWitnessExtractor]: Location invariant before [L1749-L1749] (unsigned long )arg == 0UL [2024-01-30 14:19:56,171 INFO L98 nessWitnessExtractor]: Location invariant before [L1706-L1706] (unsigned long )arg == 0UL [2024-01-30 14:19:56,172 INFO L98 nessWitnessExtractor]: Loop invariant at [L1745-L1769] (unsigned long )arg == 0UL [2024-01-30 14:19:56,172 INFO L98 nessWitnessExtractor]: Location invariant before [L1777-L1777] (pdev == 0) && (ldv_usb_state == 0) [2024-01-30 14:19:56,172 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1711] (unsigned long )arg == 0UL [2024-01-30 14:19:56,172 INFO L98 nessWitnessExtractor]: Location invariant before [L1756-L1761] (unsigned long )arg == 0UL [2024-01-30 14:19:56,172 INFO L98 nessWitnessExtractor]: Location invariant before [L1746-L1768] (unsigned long )arg == 0UL [2024-01-30 14:19:56,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:19:56,924 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-01-30 14:19:56,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:19:56,976 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:19:57,018 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-01-30 14:19:57,019 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 [2024-01-30 14:19:57,091 WARN L424 MainDispatcher]: Unable to annotate void module_exit() { void *status; pthread_join(t1, &status); pthread_mutex_destroy(&mutex); pdev = 5; ldv_assert(pdev==5); } with a witness entry [2024-01-30 14:19:57,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:19:57,164 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:19:57,165 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57 WrapperNode [2024-01-30 14:19:57,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:19:57,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:19:57,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:19:57,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:19:57,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,244 INFO L138 Inliner]: procedures = 487, calls = 48, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 266 [2024-01-30 14:19:57,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:19:57,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:19:57,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:19:57,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:19:57,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,288 INFO L175 MemorySlicer]: Split 19 memory accesses to 6 slices as follows [2, 3, 2, 3, 5, 4]. 26 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 0, 1, 5, 0]. The 4 writes are split as follows [0, 1, 1, 1, 0, 1]. [2024-01-30 14:19:57,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:19:57,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:19:57,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:19:57,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:19:57,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (1/1) ... [2024-01-30 14:19:57,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:19:57,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:19:57,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:19:57,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:19:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-01-30 14:19:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-01-30 14:19:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-01-30 14:19:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-01-30 14:19:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:19:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:19:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-30 14:19:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-30 14:19:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-30 14:19:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-30 14:19:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-30 14:19:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-01-30 14:19:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:19:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-01-30 14:19:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-01-30 14:19:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:19:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:19:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:19:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:19:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:19:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:19:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-30 14:19:57,422 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:19:57,635 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:19:57,637 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:19:57,961 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:19:57,961 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:19:58,090 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:19:58,090 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-30 14:19:58,092 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:19:58 BoogieIcfgContainer [2024-01-30 14:19:58,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:19:58,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:19:58,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:19:58,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:19:58,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:19:55" (1/4) ... [2024-01-30 14:19:58,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10009fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:19:58, skipping insertion in model container [2024-01-30 14:19:58,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:19:55" (2/4) ... [2024-01-30 14:19:58,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10009fc3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:19:58, skipping insertion in model container [2024-01-30 14:19:58,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:19:57" (3/4) ... [2024-01-30 14:19:58,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10009fc3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:19:58, skipping insertion in model container [2024-01-30 14:19:58,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:19:58" (4/4) ... [2024-01-30 14:19:58,100 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-01-30 14:19:58,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:19:58,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-01-30 14:19:58,115 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:19:58,236 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-01-30 14:19:58,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 250 transitions, 527 flow [2024-01-30 14:19:58,335 INFO L124 PetriNetUnfolderBase]: 30/248 cut-off events. [2024-01-30 14:19:58,335 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:19:58,341 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. [2024-01-30 14:19:58,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 250 transitions, 527 flow [2024-01-30 14:19:58,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 166 transitions, 348 flow [2024-01-30 14:19:58,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:19:58,372 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;@6a3f2ca3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:19:58,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-30 14:19:58,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:19:58,375 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:19:58,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:19:58,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:19:58,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:19:58,376 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)] === [2024-01-30 14:19:58,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:19:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash 21331, now seen corresponding path program 1 times [2024-01-30 14:19:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:19:58,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155067258] [2024-01-30 14:19:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:19:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:19:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:58,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:58,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155067258] [2024-01-30 14:19:58,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155067258] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:58,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:58,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:19:58,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582940641] [2024-01-30 14:19:58,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:58,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:19:58,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:19:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:19:58,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 250 [2024-01-30 14:19:58,862 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) [2024-01-30 14:19:58,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:58,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 250 [2024-01-30 14:19:58,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:19:59,494 INFO L124 PetriNetUnfolderBase]: 2928/6694 cut-off events. [2024-01-30 14:19:59,494 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-01-30 14:19:59,503 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. [2024-01-30 14:19:59,534 INFO L140 encePairwiseOnDemand]: 238/250 looper letters, 66 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2024-01-30 14:19:59,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 464 flow [2024-01-30 14:19:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:19:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:19:59,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2024-01-30 14:19:59,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-01-30 14:19:59,551 INFO L175 Difference]: Start difference. First operand has 152 places, 166 transitions, 348 flow. Second operand 3 states and 489 transitions. [2024-01-30 14:19:59,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 464 flow [2024-01-30 14:19:59,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:19:59,560 INFO L231 Difference]: Finished difference. Result has 150 places, 156 transitions, 328 flow [2024-01-30 14:19:59,562 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} [2024-01-30 14:19:59,565 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2024-01-30 14:19:59,565 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 156 transitions, 328 flow [2024-01-30 14:19:59,566 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) [2024-01-30 14:19:59,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:19:59,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:19:59,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:19:59,566 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)] === [2024-01-30 14:19:59,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:19:59,567 INFO L85 PathProgramCache]: Analyzing trace with hash 20519471, now seen corresponding path program 1 times [2024-01-30 14:19:59,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:19:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460009067] [2024-01-30 14:19:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:19:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:19:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:19:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:19:59,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:19:59,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460009067] [2024-01-30 14:19:59,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460009067] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:19:59,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:19:59,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:19:59,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472720839] [2024-01-30 14:19:59,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:19:59,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:19:59,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:19:59,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:19:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:19:59,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 250 [2024-01-30 14:19:59,683 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) [2024-01-30 14:19:59,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:19:59,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 250 [2024-01-30 14:19:59,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:00,426 INFO L124 PetriNetUnfolderBase]: 4259/9515 cut-off events. [2024-01-30 14:20:00,426 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-01-30 14:20:00,436 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. [2024-01-30 14:20:00,465 INFO L140 encePairwiseOnDemand]: 234/250 looper letters, 114 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2024-01-30 14:20:00,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 206 transitions, 679 flow [2024-01-30 14:20:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 658 transitions. [2024-01-30 14:20:00,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.658 [2024-01-30 14:20:00,467 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 328 flow. Second operand 4 states and 658 transitions. [2024-01-30 14:20:00,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 206 transitions, 679 flow [2024-01-30 14:20:00,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 206 transitions, 675 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:20:00,470 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 386 flow [2024-01-30 14:20:00,471 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} [2024-01-30 14:20:00,471 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2024-01-30 14:20:00,471 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 386 flow [2024-01-30 14:20:00,472 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) [2024-01-30 14:20:00,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:00,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:20:00,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:20:00,472 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)] === [2024-01-30 14:20:00,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1755599939, now seen corresponding path program 1 times [2024-01-30 14:20:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563199405] [2024-01-30 14:20:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563199405] [2024-01-30 14:20:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563199405] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259954796] [2024-01-30 14:20:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:00,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:00,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-01-30 14:20:00,580 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) [2024-01-30 14:20:00,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:00,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-01-30 14:20:00,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:01,586 INFO L124 PetriNetUnfolderBase]: 5217/12118 cut-off events. [2024-01-30 14:20:01,586 INFO L125 PetriNetUnfolderBase]: For 1149/1149 co-relation queries the response was YES. [2024-01-30 14:20:01,606 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. [2024-01-30 14:20:01,639 INFO L140 encePairwiseOnDemand]: 237/250 looper letters, 105 selfloop transitions, 13 changer transitions 1/200 dead transitions. [2024-01-30 14:20:01,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 200 transitions, 733 flow [2024-01-30 14:20:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 813 transitions. [2024-01-30 14:20:01,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6504 [2024-01-30 14:20:01,642 INFO L175 Difference]: Start difference. First operand has 150 places, 157 transitions, 386 flow. Second operand 5 states and 813 transitions. [2024-01-30 14:20:01,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 200 transitions, 733 flow [2024-01-30 14:20:01,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 200 transitions, 733 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:20:01,647 INFO L231 Difference]: Finished difference. Result has 151 places, 156 transitions, 429 flow [2024-01-30 14:20:01,647 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} [2024-01-30 14:20:01,648 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -1 predicate places. [2024-01-30 14:20:01,648 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 156 transitions, 429 flow [2024-01-30 14:20:01,649 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) [2024-01-30 14:20:01,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:01,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:01,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:20:01,649 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)] === [2024-01-30 14:20:01,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:01,650 INFO L85 PathProgramCache]: Analyzing trace with hash -468855552, now seen corresponding path program 1 times [2024-01-30 14:20:01,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:01,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331556847] [2024-01-30 14:20:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:01,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:01,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331556847] [2024-01-30 14:20:01,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331556847] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:01,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:01,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:20:01,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631016107] [2024-01-30 14:20:01,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:01,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:01,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:01,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:01,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:01,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 250 [2024-01-30 14:20:01,737 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) [2024-01-30 14:20:01,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:01,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 250 [2024-01-30 14:20:01,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:02,639 INFO L124 PetriNetUnfolderBase]: 6147/14192 cut-off events. [2024-01-30 14:20:02,639 INFO L125 PetriNetUnfolderBase]: For 3913/3949 co-relation queries the response was YES. [2024-01-30 14:20:02,660 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. [2024-01-30 14:20:02,700 INFO L140 encePairwiseOnDemand]: 241/250 looper letters, 89 selfloop transitions, 6 changer transitions 6/175 dead transitions. [2024-01-30 14:20:02,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 175 transitions, 676 flow [2024-01-30 14:20:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:02,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 624 transitions. [2024-01-30 14:20:02,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.624 [2024-01-30 14:20:02,702 INFO L175 Difference]: Start difference. First operand has 151 places, 156 transitions, 429 flow. Second operand 4 states and 624 transitions. [2024-01-30 14:20:02,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 175 transitions, 676 flow [2024-01-30 14:20:02,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 175 transitions, 658 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:20:02,708 INFO L231 Difference]: Finished difference. Result has 148 places, 147 transitions, 400 flow [2024-01-30 14:20:02,708 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} [2024-01-30 14:20:02,709 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2024-01-30 14:20:02,709 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 147 transitions, 400 flow [2024-01-30 14:20:02,709 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) [2024-01-30 14:20:02,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:02,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:02,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:20:02,710 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)] === [2024-01-30 14:20:02,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash 402239973, now seen corresponding path program 1 times [2024-01-30 14:20:02,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:02,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015602903] [2024-01-30 14:20:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:02,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:02,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:02,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015602903] [2024-01-30 14:20:02,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015602903] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:02,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:02,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:02,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462976686] [2024-01-30 14:20:02,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:02,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:02,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:02,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:02,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:02,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 250 [2024-01-30 14:20:02,880 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) [2024-01-30 14:20:02,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:02,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 250 [2024-01-30 14:20:02,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:03,860 INFO L124 PetriNetUnfolderBase]: 4936/11186 cut-off events. [2024-01-30 14:20:03,860 INFO L125 PetriNetUnfolderBase]: For 1992/2028 co-relation queries the response was YES. [2024-01-30 14:20:03,879 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. [2024-01-30 14:20:03,906 INFO L140 encePairwiseOnDemand]: 230/250 looper letters, 67 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-01-30 14:20:03,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 512 flow [2024-01-30 14:20:03,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 599 transitions. [2024-01-30 14:20:03,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.599 [2024-01-30 14:20:03,908 INFO L175 Difference]: Start difference. First operand has 148 places, 147 transitions, 400 flow. Second operand 4 states and 599 transitions. [2024-01-30 14:20:03,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 512 flow [2024-01-30 14:20:03,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 134 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:20:03,912 INFO L231 Difference]: Finished difference. Result has 124 places, 129 transitions, 356 flow [2024-01-30 14:20:03,913 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} [2024-01-30 14:20:03,915 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -28 predicate places. [2024-01-30 14:20:03,915 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 129 transitions, 356 flow [2024-01-30 14:20:03,915 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) [2024-01-30 14:20:03,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:03,916 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] [2024-01-30 14:20:03,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:20:03,916 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)] === [2024-01-30 14:20:03,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:03,916 INFO L85 PathProgramCache]: Analyzing trace with hash -8045397, now seen corresponding path program 1 times [2024-01-30 14:20:03,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:03,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627669370] [2024-01-30 14:20:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:03,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:04,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:04,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627669370] [2024-01-30 14:20:04,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627669370] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:04,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:04,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:04,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847401811] [2024-01-30 14:20:04,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:04,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:04,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:04,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:04,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-01-30 14:20:04,050 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) [2024-01-30 14:20:04,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:04,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-01-30 14:20:04,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:05,690 INFO L124 PetriNetUnfolderBase]: 9527/21044 cut-off events. [2024-01-30 14:20:05,690 INFO L125 PetriNetUnfolderBase]: For 3141/3165 co-relation queries the response was YES. [2024-01-30 14:20:05,764 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. [2024-01-30 14:20:05,821 INFO L140 encePairwiseOnDemand]: 244/250 looper letters, 125 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2024-01-30 14:20:05,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 193 transitions, 781 flow [2024-01-30 14:20:05,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 707 transitions. [2024-01-30 14:20:05,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.707 [2024-01-30 14:20:05,823 INFO L175 Difference]: Start difference. First operand has 124 places, 129 transitions, 356 flow. Second operand 4 states and 707 transitions. [2024-01-30 14:20:05,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 193 transitions, 781 flow [2024-01-30 14:20:05,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 193 transitions, 778 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:20:05,829 INFO L231 Difference]: Finished difference. Result has 127 places, 132 transitions, 383 flow [2024-01-30 14:20:05,829 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} [2024-01-30 14:20:05,832 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -25 predicate places. [2024-01-30 14:20:05,832 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 132 transitions, 383 flow [2024-01-30 14:20:05,832 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) [2024-01-30 14:20:05,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:05,832 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] [2024-01-30 14:20:05,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:20:05,833 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)] === [2024-01-30 14:20:05,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash -249338999, now seen corresponding path program 1 times [2024-01-30 14:20:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:05,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738482371] [2024-01-30 14:20:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738482371] [2024-01-30 14:20:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738482371] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:05,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:05,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479302333] [2024-01-30 14:20:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:05,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:05,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:05,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-01-30 14:20:05,962 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) [2024-01-30 14:20:05,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:05,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-01-30 14:20:05,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:07,542 INFO L124 PetriNetUnfolderBase]: 9782/21010 cut-off events. [2024-01-30 14:20:07,543 INFO L125 PetriNetUnfolderBase]: For 4438/4456 co-relation queries the response was YES. [2024-01-30 14:20:07,589 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. [2024-01-30 14:20:07,718 INFO L140 encePairwiseOnDemand]: 242/250 looper letters, 125 selfloop transitions, 3 changer transitions 2/189 dead transitions. [2024-01-30 14:20:07,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 189 transitions, 814 flow [2024-01-30 14:20:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 687 transitions. [2024-01-30 14:20:07,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.687 [2024-01-30 14:20:07,720 INFO L175 Difference]: Start difference. First operand has 127 places, 132 transitions, 383 flow. Second operand 4 states and 687 transitions. [2024-01-30 14:20:07,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 189 transitions, 814 flow [2024-01-30 14:20:07,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 189 transitions, 808 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:20:07,747 INFO L231 Difference]: Finished difference. Result has 123 places, 127 transitions, 380 flow [2024-01-30 14:20:07,747 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} [2024-01-30 14:20:07,748 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -29 predicate places. [2024-01-30 14:20:07,748 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 127 transitions, 380 flow [2024-01-30 14:20:07,748 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) [2024-01-30 14:20:07,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:07,749 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] [2024-01-30 14:20:07,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:20:07,749 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)] === [2024-01-30 14:20:07,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash 860511498, now seen corresponding path program 1 times [2024-01-30 14:20:07,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530510305] [2024-01-30 14:20:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:07,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530510305] [2024-01-30 14:20:07,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530510305] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:07,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:07,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896503319] [2024-01-30 14:20:07,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:07,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:07,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:07,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:07,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 250 [2024-01-30 14:20:07,855 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) [2024-01-30 14:20:07,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:07,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 250 [2024-01-30 14:20:07,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:09,169 INFO L124 PetriNetUnfolderBase]: 8674/18294 cut-off events. [2024-01-30 14:20:09,169 INFO L125 PetriNetUnfolderBase]: For 4104/4140 co-relation queries the response was YES. [2024-01-30 14:20:09,201 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. [2024-01-30 14:20:09,242 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 127 selfloop transitions, 4 changer transitions 0/188 dead transitions. [2024-01-30 14:20:09,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 188 transitions, 815 flow [2024-01-30 14:20:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 702 transitions. [2024-01-30 14:20:09,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.702 [2024-01-30 14:20:09,244 INFO L175 Difference]: Start difference. First operand has 123 places, 127 transitions, 380 flow. Second operand 4 states and 702 transitions. [2024-01-30 14:20:09,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 188 transitions, 815 flow [2024-01-30 14:20:09,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 188 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:20:09,250 INFO L231 Difference]: Finished difference. Result has 125 places, 126 transitions, 393 flow [2024-01-30 14:20:09,250 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} [2024-01-30 14:20:09,250 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -27 predicate places. [2024-01-30 14:20:09,251 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 126 transitions, 393 flow [2024-01-30 14:20:09,251 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) [2024-01-30 14:20:09,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:09,251 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] [2024-01-30 14:20:09,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:20:09,252 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)] === [2024-01-30 14:20:09,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash 838619528, now seen corresponding path program 1 times [2024-01-30 14:20:09,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:09,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295356628] [2024-01-30 14:20:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:09,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:09,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295356628] [2024-01-30 14:20:09,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295356628] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:09,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:09,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817270586] [2024-01-30 14:20:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:09,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:20:09,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:20:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:20:09,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 250 [2024-01-30 14:20:09,416 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) [2024-01-30 14:20:09,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:09,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 250 [2024-01-30 14:20:09,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:10,587 INFO L124 PetriNetUnfolderBase]: 7781/15105 cut-off events. [2024-01-30 14:20:10,587 INFO L125 PetriNetUnfolderBase]: For 4335/4353 co-relation queries the response was YES. [2024-01-30 14:20:10,610 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. [2024-01-30 14:20:10,642 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 124 selfloop transitions, 3 changer transitions 0/175 dead transitions. [2024-01-30 14:20:10,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 175 transitions, 760 flow [2024-01-30 14:20:10,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2024-01-30 14:20:10,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576 [2024-01-30 14:20:10,647 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 393 flow. Second operand 5 states and 720 transitions. [2024-01-30 14:20:10,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 175 transitions, 760 flow [2024-01-30 14:20:10,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 175 transitions, 749 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-01-30 14:20:10,658 INFO L231 Difference]: Finished difference. Result has 128 places, 125 transitions, 389 flow [2024-01-30 14:20:10,659 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} [2024-01-30 14:20:10,660 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -24 predicate places. [2024-01-30 14:20:10,660 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 389 flow [2024-01-30 14:20:10,660 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) [2024-01-30 14:20:10,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:10,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:10,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:20:10,661 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)] === [2024-01-30 14:20:10,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:10,661 INFO L85 PathProgramCache]: Analyzing trace with hash 298554490, now seen corresponding path program 1 times [2024-01-30 14:20:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:10,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039234612] [2024-01-30 14:20:10,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:10,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:10,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:10,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039234612] [2024-01-30 14:20:10,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039234612] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:10,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:10,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:10,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130535967] [2024-01-30 14:20:10,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:10,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:10,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:10,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:10,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:10,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-01-30 14:20:10,761 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) [2024-01-30 14:20:10,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:10,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-01-30 14:20:10,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:12,019 INFO L124 PetriNetUnfolderBase]: 8160/16340 cut-off events. [2024-01-30 14:20:12,020 INFO L125 PetriNetUnfolderBase]: For 4888/4894 co-relation queries the response was YES. [2024-01-30 14:20:12,051 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. [2024-01-30 14:20:12,088 INFO L140 encePairwiseOnDemand]: 241/250 looper letters, 119 selfloop transitions, 12 changer transitions 0/182 dead transitions. [2024-01-30 14:20:12,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 182 transitions, 778 flow [2024-01-30 14:20:12,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 828 transitions. [2024-01-30 14:20:12,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6624 [2024-01-30 14:20:12,091 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 389 flow. Second operand 5 states and 828 transitions. [2024-01-30 14:20:12,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 182 transitions, 778 flow [2024-01-30 14:20:12,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 182 transitions, 773 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:20:12,102 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 466 flow [2024-01-30 14:20:12,103 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} [2024-01-30 14:20:12,103 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -19 predicate places. [2024-01-30 14:20:12,103 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 466 flow [2024-01-30 14:20:12,104 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) [2024-01-30 14:20:12,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:12,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-30 14:20:12,104 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)] === [2024-01-30 14:20:12,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1627569358, now seen corresponding path program 1 times [2024-01-30 14:20:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:12,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068108543] [2024-01-30 14:20:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:12,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068108543] [2024-01-30 14:20:12,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068108543] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:12,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:12,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:12,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55309382] [2024-01-30 14:20:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:12,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:20:12,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:12,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:20:12,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:20:12,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 250 [2024-01-30 14:20:12,255 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) [2024-01-30 14:20:12,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:12,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 250 [2024-01-30 14:20:12,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:13,599 INFO L124 PetriNetUnfolderBase]: 9870/18898 cut-off events. [2024-01-30 14:20:13,600 INFO L125 PetriNetUnfolderBase]: For 7944/8136 co-relation queries the response was YES. [2024-01-30 14:20:13,662 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. [2024-01-30 14:20:13,716 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 167 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-01-30 14:20:13,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 220 transitions, 1092 flow [2024-01-30 14:20:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-30 14:20:13,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-30 14:20:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2024-01-30 14:20:13,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576 [2024-01-30 14:20:13,719 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 466 flow. Second operand 6 states and 864 transitions. [2024-01-30 14:20:13,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 220 transitions, 1092 flow [2024-01-30 14:20:13,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 220 transitions, 1076 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-01-30 14:20:13,762 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 495 flow [2024-01-30 14:20:13,762 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} [2024-01-30 14:20:13,763 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-01-30 14:20:13,763 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 495 flow [2024-01-30 14:20:13,763 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) [2024-01-30 14:20:13,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:13,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:13,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-30 14:20:13,764 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)] === [2024-01-30 14:20:13,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:13,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1211410140, now seen corresponding path program 1 times [2024-01-30 14:20:13,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:13,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174381479] [2024-01-30 14:20:13,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:13,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:13,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:13,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174381479] [2024-01-30 14:20:13,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174381479] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:13,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:13,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:13,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143394956] [2024-01-30 14:20:13,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:13,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:20:13,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:20:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:20:13,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-01-30 14:20:13,834 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) [2024-01-30 14:20:13,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:13,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-01-30 14:20:13,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:15,095 INFO L124 PetriNetUnfolderBase]: 7844/15371 cut-off events. [2024-01-30 14:20:15,095 INFO L125 PetriNetUnfolderBase]: For 11155/11383 co-relation queries the response was YES. [2024-01-30 14:20:15,147 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. [2024-01-30 14:20:15,191 INFO L140 encePairwiseOnDemand]: 247/250 looper letters, 104 selfloop transitions, 6 changer transitions 2/166 dead transitions. [2024-01-30 14:20:15,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 166 transitions, 863 flow [2024-01-30 14:20:15,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:20:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:20:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2024-01-30 14:20:15,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.704 [2024-01-30 14:20:15,193 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 495 flow. Second operand 3 states and 528 transitions. [2024-01-30 14:20:15,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 166 transitions, 863 flow [2024-01-30 14:20:15,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 166 transitions, 858 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-30 14:20:15,234 INFO L231 Difference]: Finished difference. Result has 138 places, 129 transitions, 498 flow [2024-01-30 14:20:15,234 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} [2024-01-30 14:20:15,234 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -14 predicate places. [2024-01-30 14:20:15,235 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 129 transitions, 498 flow [2024-01-30 14:20:15,235 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) [2024-01-30 14:20:15,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:15,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:15,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-30 14:20:15,236 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)] === [2024-01-30 14:20:15,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1058025257, now seen corresponding path program 1 times [2024-01-30 14:20:15,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:15,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669955986] [2024-01-30 14:20:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:15,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:15,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:15,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669955986] [2024-01-30 14:20:15,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669955986] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:15,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:15,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:15,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689800497] [2024-01-30 14:20:15,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:15,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:20:15,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:15,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:20:15,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:20:15,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2024-01-30 14:20:15,427 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) [2024-01-30 14:20:15,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:15,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2024-01-30 14:20:15,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:16,568 INFO L124 PetriNetUnfolderBase]: 7361/14915 cut-off events. [2024-01-30 14:20:16,568 INFO L125 PetriNetUnfolderBase]: For 11642/11852 co-relation queries the response was YES. [2024-01-30 14:20:16,628 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. [2024-01-30 14:20:16,667 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 110 selfloop transitions, 4 changer transitions 1/169 dead transitions. [2024-01-30 14:20:16,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 169 transitions, 862 flow [2024-01-30 14:20:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 832 transitions. [2024-01-30 14:20:16,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6656 [2024-01-30 14:20:16,670 INFO L175 Difference]: Start difference. First operand has 138 places, 129 transitions, 498 flow. Second operand 5 states and 832 transitions. [2024-01-30 14:20:16,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 169 transitions, 862 flow [2024-01-30 14:20:16,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 169 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:20:16,727 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 492 flow [2024-01-30 14:20:16,727 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} [2024-01-30 14:20:16,728 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-01-30 14:20:16,728 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 492 flow [2024-01-30 14:20:16,730 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) [2024-01-30 14:20:16,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:16,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:16,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-30 14:20:16,730 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)] === [2024-01-30 14:20:16,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:16,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1560956163, now seen corresponding path program 1 times [2024-01-30 14:20:16,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:16,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889957165] [2024-01-30 14:20:16,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:16,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:17,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:17,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889957165] [2024-01-30 14:20:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889957165] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:17,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-30 14:20:17,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964277954] [2024-01-30 14:20:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:17,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:20:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:20:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:20:17,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-01-30 14:20:17,029 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) [2024-01-30 14:20:17,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:17,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-01-30 14:20:17,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:18,486 INFO L124 PetriNetUnfolderBase]: 7480/15506 cut-off events. [2024-01-30 14:20:18,487 INFO L125 PetriNetUnfolderBase]: For 10510/10654 co-relation queries the response was YES. [2024-01-30 14:20:18,557 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. [2024-01-30 14:20:18,606 INFO L140 encePairwiseOnDemand]: 244/250 looper letters, 120 selfloop transitions, 6 changer transitions 1/180 dead transitions. [2024-01-30 14:20:18,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 180 transitions, 898 flow [2024-01-30 14:20:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-30 14:20:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-30 14:20:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 984 transitions. [2024-01-30 14:20:18,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.656 [2024-01-30 14:20:18,609 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 492 flow. Second operand 6 states and 984 transitions. [2024-01-30 14:20:18,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 180 transitions, 898 flow [2024-01-30 14:20:18,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 180 transitions, 890 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:20:18,685 INFO L231 Difference]: Finished difference. Result has 139 places, 127 transitions, 494 flow [2024-01-30 14:20:18,686 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} [2024-01-30 14:20:18,686 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-01-30 14:20:18,686 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 127 transitions, 494 flow [2024-01-30 14:20:18,687 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) [2024-01-30 14:20:18,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:18,687 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] [2024-01-30 14:20:18,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-30 14:20:18,687 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)] === [2024-01-30 14:20:18,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1145001451, now seen corresponding path program 1 times [2024-01-30 14:20:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:18,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509012979] [2024-01-30 14:20:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:18,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509012979] [2024-01-30 14:20:18,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509012979] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:18,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:18,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-30 14:20:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191884557] [2024-01-30 14:20:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:18,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-30 14:20:18,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:18,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-30 14:20:18,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-30 14:20:18,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 250 [2024-01-30 14:20:18,995 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) [2024-01-30 14:20:18,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:18,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 250 [2024-01-30 14:20:18,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:20,491 INFO L124 PetriNetUnfolderBase]: 7361/14837 cut-off events. [2024-01-30 14:20:20,491 INFO L125 PetriNetUnfolderBase]: For 10198/10408 co-relation queries the response was YES. [2024-01-30 14:20:20,551 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. [2024-01-30 14:20:20,594 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 130 selfloop transitions, 7 changer transitions 1/190 dead transitions. [2024-01-30 14:20:20,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 190 transitions, 952 flow [2024-01-30 14:20:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-30 14:20:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-30 14:20:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1141 transitions. [2024-01-30 14:20:20,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-01-30 14:20:20,597 INFO L175 Difference]: Start difference. First operand has 139 places, 127 transitions, 494 flow. Second operand 7 states and 1141 transitions. [2024-01-30 14:20:20,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 190 transitions, 952 flow [2024-01-30 14:20:20,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 190 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-30 14:20:20,658 INFO L231 Difference]: Finished difference. Result has 139 places, 126 transitions, 494 flow [2024-01-30 14:20:20,659 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} [2024-01-30 14:20:20,660 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -13 predicate places. [2024-01-30 14:20:20,660 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 126 transitions, 494 flow [2024-01-30 14:20:20,660 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) [2024-01-30 14:20:20,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:20,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:20:20,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-30 14:20:20,661 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)] === [2024-01-30 14:20:20,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:20,661 INFO L85 PathProgramCache]: Analyzing trace with hash 834790220, now seen corresponding path program 1 times [2024-01-30 14:20:20,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:20,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712951116] [2024-01-30 14:20:20,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:20,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712951116] [2024-01-30 14:20:20,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712951116] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:20,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:20,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068612663] [2024-01-30 14:20:20,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:20,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:20,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:20,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-01-30 14:20:20,775 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) [2024-01-30 14:20:20,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:20,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-01-30 14:20:20,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:22,200 INFO L124 PetriNetUnfolderBase]: 7894/16096 cut-off events. [2024-01-30 14:20:22,200 INFO L125 PetriNetUnfolderBase]: For 11800/11938 co-relation queries the response was YES. [2024-01-30 14:20:22,241 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. [2024-01-30 14:20:22,276 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 103 selfloop transitions, 8 changer transitions 5/162 dead transitions. [2024-01-30 14:20:22,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 162 transitions, 824 flow [2024-01-30 14:20:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:22,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 795 transitions. [2024-01-30 14:20:22,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.636 [2024-01-30 14:20:22,283 INFO L175 Difference]: Start difference. First operand has 139 places, 126 transitions, 494 flow. Second operand 5 states and 795 transitions. [2024-01-30 14:20:22,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 162 transitions, 824 flow [2024-01-30 14:20:22,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 162 transitions, 808 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-30 14:20:22,339 INFO L231 Difference]: Finished difference. Result has 141 places, 128 transitions, 527 flow [2024-01-30 14:20:22,340 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} [2024-01-30 14:20:22,340 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -11 predicate places. [2024-01-30 14:20:22,340 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 128 transitions, 527 flow [2024-01-30 14:20:22,340 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) [2024-01-30 14:20:22,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:22,341 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] [2024-01-30 14:20:22,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-30 14:20:22,341 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)] === [2024-01-30 14:20:22,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash 34175640, now seen corresponding path program 1 times [2024-01-30 14:20:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:22,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556277253] [2024-01-30 14:20:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:22,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:22,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556277253] [2024-01-30 14:20:22,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556277253] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:22,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:22,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:20:22,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031163677] [2024-01-30 14:20:22,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:22,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:20:22,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:22,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:20:22,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:20:22,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2024-01-30 14:20:22,423 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) [2024-01-30 14:20:22,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:22,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2024-01-30 14:20:22,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:22,989 INFO L124 PetriNetUnfolderBase]: 3868/7856 cut-off events. [2024-01-30 14:20:22,989 INFO L125 PetriNetUnfolderBase]: For 6724/6736 co-relation queries the response was YES. [2024-01-30 14:20:23,013 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. [2024-01-30 14:20:23,033 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 77 selfloop transitions, 3 changer transitions 18/131 dead transitions. [2024-01-30 14:20:23,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 652 flow [2024-01-30 14:20:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:20:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:20:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2024-01-30 14:20:23,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6706666666666666 [2024-01-30 14:20:23,035 INFO L175 Difference]: Start difference. First operand has 141 places, 128 transitions, 527 flow. Second operand 3 states and 503 transitions. [2024-01-30 14:20:23,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 652 flow [2024-01-30 14:20:23,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 131 transitions, 578 flow, removed 10 selfloop flow, removed 19 redundant places. [2024-01-30 14:20:23,051 INFO L231 Difference]: Finished difference. Result has 120 places, 92 transitions, 298 flow [2024-01-30 14:20:23,051 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} [2024-01-30 14:20:23,051 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -32 predicate places. [2024-01-30 14:20:23,051 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 92 transitions, 298 flow [2024-01-30 14:20:23,052 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) [2024-01-30 14:20:23,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:23,052 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] [2024-01-30 14:20:23,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-30 14:20:23,052 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)] === [2024-01-30 14:20:23,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2039001979, now seen corresponding path program 1 times [2024-01-30 14:20:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144198836] [2024-01-30 14:20:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:20:23,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:23,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144198836] [2024-01-30 14:20:23,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144198836] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:23,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:23,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:23,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102524394] [2024-01-30 14:20:23,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:20:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:20:23,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:20:23,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2024-01-30 14:20:23,265 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) [2024-01-30 14:20:23,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:23,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2024-01-30 14:20:23,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:23,779 INFO L124 PetriNetUnfolderBase]: 3588/7354 cut-off events. [2024-01-30 14:20:23,779 INFO L125 PetriNetUnfolderBase]: For 4720/4726 co-relation queries the response was YES. [2024-01-30 14:20:23,794 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. [2024-01-30 14:20:23,811 INFO L140 encePairwiseOnDemand]: 243/250 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-01-30 14:20:23,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 121 transitions, 568 flow [2024-01-30 14:20:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:20:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:20:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 813 transitions. [2024-01-30 14:20:23,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6504 [2024-01-30 14:20:23,813 INFO L175 Difference]: Start difference. First operand has 120 places, 92 transitions, 298 flow. Second operand 5 states and 813 transitions. [2024-01-30 14:20:23,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 121 transitions, 568 flow [2024-01-30 14:20:23,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 121 transitions, 533 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-01-30 14:20:23,819 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 287 flow [2024-01-30 14:20:23,819 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} [2024-01-30 14:20:23,820 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -53 predicate places. [2024-01-30 14:20:23,820 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 287 flow [2024-01-30 14:20:23,820 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) [2024-01-30 14:20:23,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:20:23,821 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] [2024-01-30 14:20:23,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-01-30 14:20:23,821 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)] === [2024-01-30 14:20:23,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:20:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1210421145, now seen corresponding path program 1 times [2024-01-30 14:20:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:20:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475670264] [2024-01-30 14:20:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:20:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:20:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:20:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-30 14:20:23,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:20:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475670264] [2024-01-30 14:20:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475670264] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:20:23,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:20:23,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:20:23,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482745224] [2024-01-30 14:20:23,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:20:23,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:20:23,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:20:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:20:23,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:20:23,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 250 [2024-01-30 14:20:23,905 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) [2024-01-30 14:20:23,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:20:23,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 250 [2024-01-30 14:20:23,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:20:24,512 INFO L124 PetriNetUnfolderBase]: 4773/9817 cut-off events. [2024-01-30 14:20:24,512 INFO L125 PetriNetUnfolderBase]: For 3604/3616 co-relation queries the response was YES. [2024-01-30 14:20:24,532 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. [2024-01-30 14:20:24,538 INFO L140 encePairwiseOnDemand]: 245/250 looper letters, 0 selfloop transitions, 0 changer transitions 125/125 dead transitions. [2024-01-30 14:20:24,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 125 transitions, 577 flow [2024-01-30 14:20:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:20:24,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:20:24,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 652 transitions. [2024-01-30 14:20:24,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652 [2024-01-30 14:20:24,541 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 287 flow. Second operand 4 states and 652 transitions. [2024-01-30 14:20:24,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 125 transitions, 577 flow [2024-01-30 14:20:24,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 125 transitions, 562 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:20:24,548 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2024-01-30 14:20:24,549 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} [2024-01-30 14:20:24,549 INFO L281 CegarLoopForPetriNet]: 152 programPoint places, -56 predicate places. [2024-01-30 14:20:24,549 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2024-01-30 14:20:24,549 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) [2024-01-30 14:20:24,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-01-30 14:20:24,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-01-30 14:20:24,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-01-30 14:20:24,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-01-30 14:20:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-01-30 14:20:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-01-30 14:20:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (75 of 82 remaining) [2024-01-30 14:20:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-01-30 14:20:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (71 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-01-30 14:20:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (66 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-01-30 14:20:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (60 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-01-30 14:20:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONERROR_FUNCTION (50 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-01-30 14:20:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-01-30 14:20:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONERROR_FUNCTION (34 of 82 remaining) [2024-01-30 14:20:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr3ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-01-30 14:20:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr4ASSERT_VIOLATIONERROR_FUNCTION (26 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr21ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-01-30 14:20:24,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr22ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr23ASSERT_VIOLATIONERROR_FUNCTION (17 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr18ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-01-30 14:20:24,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr24ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr20ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr19ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-01-30 14:20:24,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr14ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr15ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr16ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr17ASSERT_VIOLATIONERROR_FUNCTION (1 of 82 remaining) [2024-01-30 14:20:24,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 82 remaining) [2024-01-30 14:20:24,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-01-30 14:20:24,565 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] [2024-01-30 14:20:24,569 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:20:24,569 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:20:24,572 INFO L503 ceAbstractionStarter]: Automizer considered 41 witness invariants [2024-01-30 14:20:24,572 INFO L504 ceAbstractionStarter]: WitnessConsidered=41 [2024-01-30 14:20:24,573 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:20:24 BasicIcfg [2024-01-30 14:20:24,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:20:24,574 INFO L158 Benchmark]: Toolchain (without parser) took 28565.53ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 123.8MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-01-30 14:20:24,574 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:20:24,574 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:20:24,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1155.59ms. Allocated memory is still 153.1MB. Free memory was 123.2MB in the beginning and 59.3MB in the end (delta: 63.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-01-30 14:20:24,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.88ms. Allocated memory is still 153.1MB. Free memory was 59.3MB in the beginning and 55.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-30 14:20:24,575 INFO L158 Benchmark]: Boogie Preprocessor took 111.45ms. Allocated memory is still 153.1MB. Free memory was 55.1MB in the beginning and 118.8MB in the end (delta: -63.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-01-30 14:20:24,575 INFO L158 Benchmark]: RCFGBuilder took 734.63ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 64.0MB in the end (delta: 54.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-01-30 14:20:24,575 INFO L158 Benchmark]: TraceAbstraction took 26479.47ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 63.1MB in the beginning and 6.1GB in the end (delta: -6.1GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-01-30 14:20:24,576 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1155.59ms. Allocated memory is still 153.1MB. Free memory was 123.2MB in the beginning and 59.3MB in the end (delta: 63.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.88ms. Allocated memory is still 153.1MB. Free memory was 59.3MB in the beginning and 55.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.45ms. Allocated memory is still 153.1MB. Free memory was 55.1MB in the beginning and 118.8MB in the end (delta: -63.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * RCFGBuilder took 734.63ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 64.0MB in the end (delta: 54.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26479.47ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 63.1MB in the beginning and 6.1GB in the end (delta: -6.1GB). Peak memory consumption was 2.5GB. 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: 26.3s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1845 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1491 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 2.3s 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, 2.1s 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! [2024-01-30 14:20:24,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE