./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.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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.2024-02-07_10-47-16.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:05:19,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:05:19,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:05:19,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:05:19,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:05:19,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:05:19,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:05:19,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:05:19,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:05:19,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:05:19,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:05:19,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:05:19,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:05:19,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:05:19,689 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:05:19,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:05:19,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:05:19,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:05:19,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:05:19,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:05:19,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:05:19,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:05:19,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:05:19,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:05:19,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:05:19,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:05:19,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:05:19,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:05:19,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:05:19,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:05:19,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:05:19,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:05:19,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:05:19,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:05:19,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:05:19,695 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:05:19,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:05:19,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:05:19,695 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:05:19,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:05:19,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:05:19,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:05:19,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:05:19,927 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:05:19,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-07 19:05:21,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:05:21,558 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:05:21,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-07 19:05:21,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/597d5402a/0849955b1ac944b6be075189b127c161/FLAG7e8e64a8c [2024-02-07 19:05:21,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/597d5402a/0849955b1ac944b6be075189b127c161 [2024-02-07 19:05:21,627 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:05:21,628 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:05:21,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/race-4_1-thread_local_vars.yml/witness.yml [2024-02-07 19:05:21,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:05:21,746 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:05:21,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:05:21,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:05:21,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:05:21,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:05:21" (1/2) ... [2024-02-07 19:05:21,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f10e5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:05:21, skipping insertion in model container [2024-02-07 19:05:21,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:05:21" (1/2) ... [2024-02-07 19:05:21,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3feb4518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:05:21, skipping insertion in model container [2024-02-07 19:05:21,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:05:21" (2/2) ... [2024-02-07 19:05:21,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f10e5c8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:21, skipping insertion in model container [2024-02-07 19:05:21,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:05:21" (2/2) ... [2024-02-07 19:05:21,756 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:05:21,957 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:05:21,958 INFO L76 edCorrectnessWitness]: Location invariant before [L1784-L1784] pdev == 3 [2024-02-07 19:05:21,958 INFO L76 edCorrectnessWitness]: Location invariant before [L1750-L1750] (((((((-128 <= probe_ret) && (-1 <= probe_ret)) && (0 <= ldv_usb_state)) && (ldv_usb_state <= 1)) && (probe_ret <= 0)) && (probe_ret <= 127)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && (probe_ret == -1 || probe_ret == 0) [2024-02-07 19:05:21,958 INFO L76 edCorrectnessWitness]: Location invariant before [L1700-L1700] (((((0 <= pdev) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (pdev != 0)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1759-L1759] ((0 <= ldv_usb_state) && (ldv_usb_state <= 1)) && (ldv_usb_state == 0 || ldv_usb_state == 1) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1732-L1732] ((((-128 <= error) && (-1 <= error)) && (error <= 0)) && (error <= 127)) && (error == -1 || error == 0) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1752-L1752] ((((((((0 <= pdev) && (0 <= ldv_usb_state)) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (ldv_usb_state <= 1)) && (pdev != 0)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1764-L1764] ((((((((0 <= pdev) && (0 <= ldv_usb_state)) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (ldv_usb_state <= 1)) && (pdev != 0)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1760-L1760] ((((((((0 <= pdev) && (0 <= ldv_usb_state)) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (ldv_usb_state <= 1)) && (pdev != 0)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1726-L1726] (unsigned long )status == 0UL [2024-02-07 19:05:21,959 INFO L76 edCorrectnessWitness]: Location invariant before [L1693-L1693] ((expression == 1 || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1)) [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1756-L1756] ((((((((0 <= pdev) && (0 <= ldv_usb_state)) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (ldv_usb_state <= 1)) && (pdev != 0)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1748-L1748] ((((((((0 <= pdev) && (0 <= ldv_usb_state)) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (ldv_usb_state <= 1)) && (pdev != 0)) && (ldv_usb_state == 0 || ldv_usb_state == 1)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1772-L1772] (((((0 <= pdev) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (pdev != 0)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1793-L1793] (((((0 <= pdev) && (1 <= pdev)) && (pdev <= 9)) && (pdev <= 127)) && (pdev != 0)) && ((((pdev == 1 || pdev == 5) || pdev == 6) || pdev == 8) || pdev == 9) [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1791-L1791] (unsigned long )status == 0UL [2024-02-07 19:05:21,960 INFO L76 edCorrectnessWitness]: Location invariant before [L1778-L1778] pdev == 1 [2024-02-07 19:05:22,001 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:05:22,590 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-02-07 19:05:22,658 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:05:22,670 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:05:22,759 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] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:05:22,786 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:05:22,874 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:05:22,875 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22 WrapperNode [2024-02-07 19:05:22,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:05:22,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:05:22,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:05:22,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:05:22,883 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 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:22,919 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 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:22,957 INFO L138 Inliner]: procedures = 487, calls = 46, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 238 [2024-02-07 19:05:22,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:05:22,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:05:22,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:05:22,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:05:22,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:22,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:22,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,010 INFO L175 MemorySlicer]: Split 17 memory accesses to 6 slices as follows [2, 3, 3, 2, 5, 2]. 29 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 1, 0, 5, 0]. The 4 writes are split as follows [0, 1, 1, 1, 0, 1]. [2024-02-07 19:05:23,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:05:23,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:05:23,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:05:23,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:05:23,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (1/1) ... [2024-02-07 19:05:23,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:05:23,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:05:23,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:05:23,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:05:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-02-07 19:05:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-02-07 19:05:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:05:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:05:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:05:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:05:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-02-07 19:05:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:05:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:05:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:05:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-02-07 19:05:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:05:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-07 19:05:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:05:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:05:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:05:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:05:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:05:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-07 19:05:23,148 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:05:23,362 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:05:23,364 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:05:23,685 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:05:23,685 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:05:23,807 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:05:23,807 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-07 19:05:23,808 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:05:23 BoogieIcfgContainer [2024-02-07 19:05:23,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:05:23,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:05:23,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:05:23,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:05:23,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:05:21" (1/4) ... [2024-02-07 19:05:23,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fec440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:05:23, skipping insertion in model container [2024-02-07 19:05:23,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:05:21" (2/4) ... [2024-02-07 19:05:23,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fec440 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:05:23, skipping insertion in model container [2024-02-07 19:05:23,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:05:22" (3/4) ... [2024-02-07 19:05:23,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fec440 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:05:23, skipping insertion in model container [2024-02-07 19:05:23,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:05:23" (4/4) ... [2024-02-07 19:05:23,817 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-02-07 19:05:23,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:05:23,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2024-02-07 19:05:23,832 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:05:24,048 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-02-07 19:05:24,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 186 transitions, 399 flow [2024-02-07 19:05:24,219 INFO L124 PetriNetUnfolderBase]: 28/184 cut-off events. [2024-02-07 19:05:24,220 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-07 19:05:24,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 184 events. 28/184 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 590 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 135. Up to 11 conditions per place. [2024-02-07 19:05:24,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 186 transitions, 399 flow [2024-02-07 19:05:24,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 121 transitions, 258 flow [2024-02-07 19:05:24,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:05:24,274 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;@7524271, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:05:24,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-02-07 19:05:24,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:05:24,277 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 19:05:24,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:05:24,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:24,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 19:05:24,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:24,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:24,291 INFO L85 PathProgramCache]: Analyzing trace with hash 19293, now seen corresponding path program 1 times [2024-02-07 19:05:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:24,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766220995] [2024-02-07 19:05:24,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:24,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:24,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766220995] [2024-02-07 19:05:24,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766220995] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:24,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:24,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:05:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420348033] [2024-02-07 19:05:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:24,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:05:24,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:24,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:05:24,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:05:24,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 186 [2024-02-07 19:05:24,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 121 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:24,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:24,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 186 [2024-02-07 19:05:24,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:25,674 INFO L124 PetriNetUnfolderBase]: 3805/7426 cut-off events. [2024-02-07 19:05:25,675 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-02-07 19:05:25,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13135 conditions, 7426 events. 3805/7426 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 52335 event pairs, 1020 based on Foata normal form. 200/6024 useless extension candidates. Maximal degree in co-relation 12606. Up to 4051 conditions per place. [2024-02-07 19:05:25,744 INFO L140 encePairwiseOnDemand]: 173/186 looper letters, 81 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2024-02-07 19:05:25,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 144 transitions, 485 flow [2024-02-07 19:05:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:05:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:05:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-02-07 19:05:25,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2024-02-07 19:05:25,758 INFO L175 Difference]: Start difference. First operand has 109 places, 121 transitions, 258 flow. Second operand 3 states and 378 transitions. [2024-02-07 19:05:25,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 144 transitions, 485 flow [2024-02-07 19:05:25,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 144 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:05:25,765 INFO L231 Difference]: Finished difference. Result has 109 places, 116 transitions, 265 flow [2024-02-07 19:05:25,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=109, PETRI_TRANSITIONS=116} [2024-02-07 19:05:25,769 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 0 predicate places. [2024-02-07 19:05:25,769 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 116 transitions, 265 flow [2024-02-07 19:05:25,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:25,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:25,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-07 19:05:25,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:05:25,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:25,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:25,771 INFO L85 PathProgramCache]: Analyzing trace with hash 598770, now seen corresponding path program 1 times [2024-02-07 19:05:25,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:25,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411376714] [2024-02-07 19:05:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:25,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:25,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:25,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411376714] [2024-02-07 19:05:25,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411376714] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:25,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:25,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558484410] [2024-02-07 19:05:25,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:25,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:25,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:25,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:25,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:25,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 186 [2024-02-07 19:05:25,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 116 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:25,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:25,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 186 [2024-02-07 19:05:25,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:26,543 INFO L124 PetriNetUnfolderBase]: 3833/7448 cut-off events. [2024-02-07 19:05:26,543 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-02-07 19:05:26,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13649 conditions, 7448 events. 3833/7448 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 52389 event pairs, 1032 based on Foata normal form. 4/5878 useless extension candidates. Maximal degree in co-relation 3725. Up to 4106 conditions per place. [2024-02-07 19:05:26,590 INFO L140 encePairwiseOnDemand]: 174/186 looper letters, 80 selfloop transitions, 7 changer transitions 2/138 dead transitions. [2024-02-07 19:05:26,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 138 transitions, 494 flow [2024-02-07 19:05:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2024-02-07 19:05:26,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5720430107526882 [2024-02-07 19:05:26,595 INFO L175 Difference]: Start difference. First operand has 109 places, 116 transitions, 265 flow. Second operand 5 states and 532 transitions. [2024-02-07 19:05:26,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 138 transitions, 494 flow [2024-02-07 19:05:26,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:26,603 INFO L231 Difference]: Finished difference. Result has 106 places, 108 transitions, 258 flow [2024-02-07 19:05:26,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=106, PETRI_TRANSITIONS=108} [2024-02-07 19:05:26,605 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2024-02-07 19:05:26,605 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 108 transitions, 258 flow [2024-02-07 19:05:26,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:26,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:26,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:26,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:05:26,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:26,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1054232751, now seen corresponding path program 1 times [2024-02-07 19:05:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510348766] [2024-02-07 19:05:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:26,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:26,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510348766] [2024-02-07 19:05:26,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510348766] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:26,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:26,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358875766] [2024-02-07 19:05:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:26,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:05:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:05:26,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:05:26,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 186 [2024-02-07 19:05:26,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 108 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:26,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:26,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 186 [2024-02-07 19:05:26,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:27,273 INFO L124 PetriNetUnfolderBase]: 4113/7937 cut-off events. [2024-02-07 19:05:27,273 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2024-02-07 19:05:27,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14579 conditions, 7937 events. 4113/7937 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 55505 event pairs, 3418 based on Foata normal form. 1/6572 useless extension candidates. Maximal degree in co-relation 4493. Up to 6096 conditions per place. [2024-02-07 19:05:27,306 INFO L140 encePairwiseOnDemand]: 184/186 looper letters, 56 selfloop transitions, 0 changer transitions 1/107 dead transitions. [2024-02-07 19:05:27,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 370 flow [2024-02-07 19:05:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:05:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:05:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2024-02-07 19:05:27,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5931899641577061 [2024-02-07 19:05:27,308 INFO L175 Difference]: Start difference. First operand has 106 places, 108 transitions, 258 flow. Second operand 3 states and 331 transitions. [2024-02-07 19:05:27,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 107 transitions, 370 flow [2024-02-07 19:05:27,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 107 transitions, 358 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:05:27,311 INFO L231 Difference]: Finished difference. Result has 101 places, 106 transitions, 240 flow [2024-02-07 19:05:27,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=101, PETRI_TRANSITIONS=106} [2024-02-07 19:05:27,312 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -8 predicate places. [2024-02-07 19:05:27,312 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 240 flow [2024-02-07 19:05:27,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:27,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:27,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:27,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:05:27,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:27,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:27,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1241130973, now seen corresponding path program 1 times [2024-02-07 19:05:27,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:27,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710401113] [2024-02-07 19:05:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:27,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:27,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:27,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710401113] [2024-02-07 19:05:27,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710401113] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:27,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:27,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6858237] [2024-02-07 19:05:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:27,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:27,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 186 [2024-02-07 19:05:27,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:27,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:27,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 186 [2024-02-07 19:05:27,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:28,276 INFO L124 PetriNetUnfolderBase]: 5283/9678 cut-off events. [2024-02-07 19:05:28,276 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-02-07 19:05:28,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17935 conditions, 9678 events. 5283/9678 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 68811 event pairs, 693 based on Foata normal form. 26/7634 useless extension candidates. Maximal degree in co-relation 17930. Up to 5490 conditions per place. [2024-02-07 19:05:28,328 INFO L140 encePairwiseOnDemand]: 170/186 looper letters, 108 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2024-02-07 19:05:28,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 158 transitions, 589 flow [2024-02-07 19:05:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2024-02-07 19:05:28,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766129032258065 [2024-02-07 19:05:28,330 INFO L175 Difference]: Start difference. First operand has 101 places, 106 transitions, 240 flow. Second operand 4 states and 429 transitions. [2024-02-07 19:05:28,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 158 transitions, 589 flow [2024-02-07 19:05:28,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 158 transitions, 589 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:05:28,333 INFO L231 Difference]: Finished difference. Result has 104 places, 111 transitions, 307 flow [2024-02-07 19:05:28,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=104, PETRI_TRANSITIONS=111} [2024-02-07 19:05:28,334 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -5 predicate places. [2024-02-07 19:05:28,334 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 111 transitions, 307 flow [2024-02-07 19:05:28,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:28,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:28,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:28,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:05:28,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:28,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash 312319220, now seen corresponding path program 1 times [2024-02-07 19:05:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:28,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256795261] [2024-02-07 19:05:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:28,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:28,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256795261] [2024-02-07 19:05:28,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256795261] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:28,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:28,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:28,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744411148] [2024-02-07 19:05:28,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:28,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:28,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:28,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 186 [2024-02-07 19:05:28,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 111 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:28,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:28,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 186 [2024-02-07 19:05:28,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:29,472 INFO L124 PetriNetUnfolderBase]: 6647/13736 cut-off events. [2024-02-07 19:05:29,472 INFO L125 PetriNetUnfolderBase]: For 1581/1743 co-relation queries the response was YES. [2024-02-07 19:05:29,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25836 conditions, 13736 events. 6647/13736 cut-off events. For 1581/1743 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 110627 event pairs, 2845 based on Foata normal form. 12/11572 useless extension candidates. Maximal degree in co-relation 25828. Up to 5130 conditions per place. [2024-02-07 19:05:29,536 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 113 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2024-02-07 19:05:29,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 173 transitions, 720 flow [2024-02-07 19:05:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:29,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:29,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2024-02-07 19:05:29,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6801075268817204 [2024-02-07 19:05:29,538 INFO L175 Difference]: Start difference. First operand has 104 places, 111 transitions, 307 flow. Second operand 4 states and 506 transitions. [2024-02-07 19:05:29,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 173 transitions, 720 flow [2024-02-07 19:05:29,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 173 transitions, 711 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:29,549 INFO L231 Difference]: Finished difference. Result has 108 places, 115 transitions, 343 flow [2024-02-07 19:05:29,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=343, PETRI_PLACES=108, PETRI_TRANSITIONS=115} [2024-02-07 19:05:29,552 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -1 predicate places. [2024-02-07 19:05:29,552 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 115 transitions, 343 flow [2024-02-07 19:05:29,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:29,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:29,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:29,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:05:29,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:29,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1091961986, now seen corresponding path program 1 times [2024-02-07 19:05:29,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:29,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442794794] [2024-02-07 19:05:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:29,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:29,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442794794] [2024-02-07 19:05:29,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442794794] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:29,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:29,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:05:29,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083030092] [2024-02-07 19:05:29,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:29,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:05:29,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:05:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:05:29,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 186 [2024-02-07 19:05:29,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 115 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:29,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:29,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 186 [2024-02-07 19:05:29,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:30,807 INFO L124 PetriNetUnfolderBase]: 5258/10902 cut-off events. [2024-02-07 19:05:30,808 INFO L125 PetriNetUnfolderBase]: For 2045/2213 co-relation queries the response was YES. [2024-02-07 19:05:30,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21459 conditions, 10902 events. 5258/10902 cut-off events. For 2045/2213 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 87003 event pairs, 2015 based on Foata normal form. 276/9818 useless extension candidates. Maximal degree in co-relation 21449. Up to 3663 conditions per place. [2024-02-07 19:05:30,890 INFO L140 encePairwiseOnDemand]: 172/186 looper letters, 131 selfloop transitions, 12 changer transitions 0/192 dead transitions. [2024-02-07 19:05:30,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 192 transitions, 796 flow [2024-02-07 19:05:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:05:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:05:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 685 transitions. [2024-02-07 19:05:30,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6137992831541219 [2024-02-07 19:05:30,893 INFO L175 Difference]: Start difference. First operand has 108 places, 115 transitions, 343 flow. Second operand 6 states and 685 transitions. [2024-02-07 19:05:30,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 192 transitions, 796 flow [2024-02-07 19:05:30,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 192 transitions, 789 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:30,906 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 384 flow [2024-02-07 19:05:30,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2024-02-07 19:05:30,910 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2024-02-07 19:05:30,910 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 384 flow [2024-02-07 19:05:30,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:30,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:30,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:05:30,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:30,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2039645316, now seen corresponding path program 1 times [2024-02-07 19:05:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:30,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358007708] [2024-02-07 19:05:30,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:30,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:30,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358007708] [2024-02-07 19:05:30,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358007708] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:30,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:30,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:30,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136737858] [2024-02-07 19:05:30,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:30,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:05:30,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:30,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:05:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:05:31,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 186 [2024-02-07 19:05:31,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:31,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:31,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 186 [2024-02-07 19:05:31,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:31,959 INFO L124 PetriNetUnfolderBase]: 5907/11715 cut-off events. [2024-02-07 19:05:31,959 INFO L125 PetriNetUnfolderBase]: For 5664/5898 co-relation queries the response was YES. [2024-02-07 19:05:31,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24537 conditions, 11715 events. 5907/11715 cut-off events. For 5664/5898 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 91308 event pairs, 3744 based on Foata normal form. 0/9617 useless extension candidates. Maximal degree in co-relation 24525. Up to 7229 conditions per place. [2024-02-07 19:05:32,043 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 80 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-02-07 19:05:32,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 135 transitions, 597 flow [2024-02-07 19:05:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:05:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:05:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-02-07 19:05:32,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6469534050179212 [2024-02-07 19:05:32,045 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 384 flow. Second operand 3 states and 361 transitions. [2024-02-07 19:05:32,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 135 transitions, 597 flow [2024-02-07 19:05:32,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 135 transitions, 578 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-02-07 19:05:32,053 INFO L231 Difference]: Finished difference. Result has 114 places, 116 transitions, 391 flow [2024-02-07 19:05:32,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=114, PETRI_TRANSITIONS=116} [2024-02-07 19:05:32,054 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2024-02-07 19:05:32,054 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 116 transitions, 391 flow [2024-02-07 19:05:32,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:32,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:32,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:32,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:05:32,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:32,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:32,055 INFO L85 PathProgramCache]: Analyzing trace with hash -506919493, now seen corresponding path program 1 times [2024-02-07 19:05:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:32,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142783255] [2024-02-07 19:05:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:32,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142783255] [2024-02-07 19:05:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142783255] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093684028] [2024-02-07 19:05:32,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:32,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:32,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:32,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 186 [2024-02-07 19:05:32,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 116 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:32,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:32,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 186 [2024-02-07 19:05:32,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:32,938 INFO L124 PetriNetUnfolderBase]: 5385/11556 cut-off events. [2024-02-07 19:05:32,938 INFO L125 PetriNetUnfolderBase]: For 4689/4719 co-relation queries the response was YES. [2024-02-07 19:05:32,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23640 conditions, 11556 events. 5385/11556 cut-off events. For 4689/4719 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 96443 event pairs, 1941 based on Foata normal form. 0/10056 useless extension candidates. Maximal degree in co-relation 23626. Up to 3931 conditions per place. [2024-02-07 19:05:33,012 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 102 selfloop transitions, 6 changer transitions 0/163 dead transitions. [2024-02-07 19:05:33,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 163 transitions, 728 flow [2024-02-07 19:05:33,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2024-02-07 19:05:33,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-02-07 19:05:33,014 INFO L175 Difference]: Start difference. First operand has 114 places, 116 transitions, 391 flow. Second operand 4 states and 496 transitions. [2024-02-07 19:05:33,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 163 transitions, 728 flow [2024-02-07 19:05:33,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 163 transitions, 718 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:33,037 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 405 flow [2024-02-07 19:05:33,038 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=405, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2024-02-07 19:05:33,038 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2024-02-07 19:05:33,038 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 405 flow [2024-02-07 19:05:33,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:33,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:33,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:33,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:05:33,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:33,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1195503909, now seen corresponding path program 1 times [2024-02-07 19:05:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658654029] [2024-02-07 19:05:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:33,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:33,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658654029] [2024-02-07 19:05:33,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658654029] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:33,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:33,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113059209] [2024-02-07 19:05:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:33,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:33,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:33,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:33,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:33,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 186 [2024-02-07 19:05:33,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 405 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:33,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:33,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 186 [2024-02-07 19:05:33,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:34,111 INFO L124 PetriNetUnfolderBase]: 6842/13273 cut-off events. [2024-02-07 19:05:34,111 INFO L125 PetriNetUnfolderBase]: For 6831/6927 co-relation queries the response was YES. [2024-02-07 19:05:34,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28736 conditions, 13273 events. 6842/13273 cut-off events. For 6831/6927 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 103379 event pairs, 4394 based on Foata normal form. 636/12399 useless extension candidates. Maximal degree in co-relation 28721. Up to 8210 conditions per place. [2024-02-07 19:05:34,170 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 115 selfloop transitions, 8 changer transitions 0/169 dead transitions. [2024-02-07 19:05:34,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 169 transitions, 766 flow [2024-02-07 19:05:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:34,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2024-02-07 19:05:34,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.613978494623656 [2024-02-07 19:05:34,177 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 405 flow. Second operand 5 states and 571 transitions. [2024-02-07 19:05:34,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 169 transitions, 766 flow [2024-02-07 19:05:34,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 169 transitions, 749 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-02-07 19:05:34,192 INFO L231 Difference]: Finished difference. Result has 119 places, 120 transitions, 437 flow [2024-02-07 19:05:34,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=437, PETRI_PLACES=119, PETRI_TRANSITIONS=120} [2024-02-07 19:05:34,193 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-02-07 19:05:34,193 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 120 transitions, 437 flow [2024-02-07 19:05:34,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:34,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:34,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:34,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-07 19:05:34,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:34,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1465365659, now seen corresponding path program 1 times [2024-02-07 19:05:34,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:34,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658604388] [2024-02-07 19:05:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:34,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:34,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:34,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658604388] [2024-02-07 19:05:34,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658604388] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:34,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:34,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:05:34,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991050700] [2024-02-07 19:05:34,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:34,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:05:34,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:05:34,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:05:34,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 186 [2024-02-07 19:05:34,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 120 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:34,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:34,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 186 [2024-02-07 19:05:34,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:35,413 INFO L124 PetriNetUnfolderBase]: 6103/12868 cut-off events. [2024-02-07 19:05:35,414 INFO L125 PetriNetUnfolderBase]: For 7029/7113 co-relation queries the response was YES. [2024-02-07 19:05:35,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28140 conditions, 12868 events. 6103/12868 cut-off events. For 7029/7113 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 107858 event pairs, 2474 based on Foata normal form. 312/11558 useless extension candidates. Maximal degree in co-relation 28124. Up to 5506 conditions per place. [2024-02-07 19:05:35,459 INFO L140 encePairwiseOnDemand]: 176/186 looper letters, 131 selfloop transitions, 12 changer transitions 0/190 dead transitions. [2024-02-07 19:05:35,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 190 transitions, 889 flow [2024-02-07 19:05:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:05:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:05:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2024-02-07 19:05:35,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5931899641577061 [2024-02-07 19:05:35,462 INFO L175 Difference]: Start difference. First operand has 119 places, 120 transitions, 437 flow. Second operand 6 states and 662 transitions. [2024-02-07 19:05:35,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 190 transitions, 889 flow [2024-02-07 19:05:35,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 190 transitions, 884 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:35,492 INFO L231 Difference]: Finished difference. Result has 123 places, 119 transitions, 457 flow [2024-02-07 19:05:35,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=123, PETRI_TRANSITIONS=119} [2024-02-07 19:05:35,492 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 14 predicate places. [2024-02-07 19:05:35,492 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 119 transitions, 457 flow [2024-02-07 19:05:35,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:35,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:35,493 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] [2024-02-07 19:05:35,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 19:05:35,493 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:35,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1967838664, now seen corresponding path program 1 times [2024-02-07 19:05:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:35,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134216879] [2024-02-07 19:05:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:35,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:35,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134216879] [2024-02-07 19:05:35,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134216879] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:35,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:35,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:35,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614658521] [2024-02-07 19:05:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:35,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:05:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:05:35,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:05:35,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 186 [2024-02-07 19:05:35,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 119 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:35,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:35,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 186 [2024-02-07 19:05:35,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:36,453 INFO L124 PetriNetUnfolderBase]: 7042/14257 cut-off events. [2024-02-07 19:05:36,453 INFO L125 PetriNetUnfolderBase]: For 12108/12234 co-relation queries the response was YES. [2024-02-07 19:05:36,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32382 conditions, 14257 events. 7042/14257 cut-off events. For 12108/12234 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 112295 event pairs, 3064 based on Foata normal form. 290/12633 useless extension candidates. Maximal degree in co-relation 32364. Up to 5684 conditions per place. [2024-02-07 19:05:36,537 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 101 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2024-02-07 19:05:36,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 158 transitions, 816 flow [2024-02-07 19:05:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:05:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:05:36,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2024-02-07 19:05:36,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6827956989247311 [2024-02-07 19:05:36,539 INFO L175 Difference]: Start difference. First operand has 123 places, 119 transitions, 457 flow. Second operand 3 states and 381 transitions. [2024-02-07 19:05:36,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 158 transitions, 816 flow [2024-02-07 19:05:36,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 158 transitions, 776 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-02-07 19:05:36,595 INFO L231 Difference]: Finished difference. Result has 121 places, 121 transitions, 487 flow [2024-02-07 19:05:36,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=121, PETRI_TRANSITIONS=121} [2024-02-07 19:05:36,596 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 12 predicate places. [2024-02-07 19:05:36,596 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 121 transitions, 487 flow [2024-02-07 19:05:36,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:36,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:36,597 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] [2024-02-07 19:05:36,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 19:05:36,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:36,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:36,598 INFO L85 PathProgramCache]: Analyzing trace with hash 873457148, now seen corresponding path program 1 times [2024-02-07 19:05:36,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:36,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877250901] [2024-02-07 19:05:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:36,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:36,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877250901] [2024-02-07 19:05:36,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877250901] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:36,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:36,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:36,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532976705] [2024-02-07 19:05:36,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:36,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:36,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:36,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 186 [2024-02-07 19:05:36,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 121 transitions, 487 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:36,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:36,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 186 [2024-02-07 19:05:36,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:37,884 INFO L124 PetriNetUnfolderBase]: 7246/14317 cut-off events. [2024-02-07 19:05:37,884 INFO L125 PetriNetUnfolderBase]: For 12920/13046 co-relation queries the response was YES. [2024-02-07 19:05:37,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33011 conditions, 14317 events. 7246/14317 cut-off events. For 12920/13046 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 110391 event pairs, 3214 based on Foata normal form. 416/13116 useless extension candidates. Maximal degree in co-relation 32992. Up to 5956 conditions per place. [2024-02-07 19:05:37,963 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 138 selfloop transitions, 13 changer transitions 2/200 dead transitions. [2024-02-07 19:05:37,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 200 transitions, 1056 flow [2024-02-07 19:05:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 603 transitions. [2024-02-07 19:05:37,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6483870967741936 [2024-02-07 19:05:37,966 INFO L175 Difference]: Start difference. First operand has 121 places, 121 transitions, 487 flow. Second operand 5 states and 603 transitions. [2024-02-07 19:05:37,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 200 transitions, 1056 flow [2024-02-07 19:05:38,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 200 transitions, 1022 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-02-07 19:05:38,079 INFO L231 Difference]: Finished difference. Result has 126 places, 126 transitions, 534 flow [2024-02-07 19:05:38,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=534, PETRI_PLACES=126, PETRI_TRANSITIONS=126} [2024-02-07 19:05:38,080 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 17 predicate places. [2024-02-07 19:05:38,080 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 126 transitions, 534 flow [2024-02-07 19:05:38,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:38,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:38,081 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:38,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-07 19:05:38,081 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:38,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1660362800, now seen corresponding path program 1 times [2024-02-07 19:05:38,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:38,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097709115] [2024-02-07 19:05:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:38,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:38,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:38,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097709115] [2024-02-07 19:05:38,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097709115] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:38,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:38,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:38,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010605593] [2024-02-07 19:05:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:38,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:38,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:38,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 186 [2024-02-07 19:05:38,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 126 transitions, 534 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:38,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:38,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 186 [2024-02-07 19:05:38,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:39,430 INFO L124 PetriNetUnfolderBase]: 7713/15012 cut-off events. [2024-02-07 19:05:39,431 INFO L125 PetriNetUnfolderBase]: For 13384/13408 co-relation queries the response was YES. [2024-02-07 19:05:39,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34955 conditions, 15012 events. 7713/15012 cut-off events. For 13384/13408 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 112865 event pairs, 2606 based on Foata normal form. 252/13472 useless extension candidates. Maximal degree in co-relation 34933. Up to 10117 conditions per place. [2024-02-07 19:05:39,511 INFO L140 encePairwiseOnDemand]: 174/186 looper letters, 121 selfloop transitions, 7 changer transitions 0/168 dead transitions. [2024-02-07 19:05:39,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 168 transitions, 883 flow [2024-02-07 19:05:39,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2024-02-07 19:05:39,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5725806451612904 [2024-02-07 19:05:39,513 INFO L175 Difference]: Start difference. First operand has 126 places, 126 transitions, 534 flow. Second operand 4 states and 426 transitions. [2024-02-07 19:05:39,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 168 transitions, 883 flow [2024-02-07 19:05:39,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 168 transitions, 883 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:05:39,592 INFO L231 Difference]: Finished difference. Result has 130 places, 124 transitions, 539 flow [2024-02-07 19:05:39,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=130, PETRI_TRANSITIONS=124} [2024-02-07 19:05:39,593 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places. [2024-02-07 19:05:39,593 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 124 transitions, 539 flow [2024-02-07 19:05:39,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:39,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:39,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:39,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-07 19:05:39,594 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:39,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1139210397, now seen corresponding path program 1 times [2024-02-07 19:05:39,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:39,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607122825] [2024-02-07 19:05:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:39,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:39,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:39,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607122825] [2024-02-07 19:05:39,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607122825] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:39,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:39,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:05:39,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756305943] [2024-02-07 19:05:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:39,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 19:05:39,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:39,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 19:05:39,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-07 19:05:39,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 186 [2024-02-07 19:05:39,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 124 transitions, 539 flow. Second operand has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:39,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:39,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 186 [2024-02-07 19:05:39,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:40,688 INFO L124 PetriNetUnfolderBase]: 6259/12553 cut-off events. [2024-02-07 19:05:40,688 INFO L125 PetriNetUnfolderBase]: For 10268/10454 co-relation queries the response was YES. [2024-02-07 19:05:40,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29624 conditions, 12553 events. 6259/12553 cut-off events. For 10268/10454 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 94753 event pairs, 4295 based on Foata normal form. 129/11196 useless extension candidates. Maximal degree in co-relation 29600. Up to 7610 conditions per place. [2024-02-07 19:05:40,745 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 113 selfloop transitions, 8 changer transitions 0/174 dead transitions. [2024-02-07 19:05:40,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 174 transitions, 968 flow [2024-02-07 19:05:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 588 transitions. [2024-02-07 19:05:40,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.632258064516129 [2024-02-07 19:05:40,748 INFO L175 Difference]: Start difference. First operand has 130 places, 124 transitions, 539 flow. Second operand 5 states and 588 transitions. [2024-02-07 19:05:40,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 174 transitions, 968 flow [2024-02-07 19:05:40,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 174 transitions, 954 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:05:40,800 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 539 flow [2024-02-07 19:05:40,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=539, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2024-02-07 19:05:40,801 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places. [2024-02-07 19:05:40,801 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 539 flow [2024-02-07 19:05:40,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:40,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:40,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:40,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-02-07 19:05:40,802 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:40,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -922880024, now seen corresponding path program 1 times [2024-02-07 19:05:40,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316865178] [2024-02-07 19:05:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:40,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:40,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316865178] [2024-02-07 19:05:40,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316865178] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:40,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:40,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:40,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131891881] [2024-02-07 19:05:40,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:40,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:40,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:40,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 186 [2024-02-07 19:05:40,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 539 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:40,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:40,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 186 [2024-02-07 19:05:40,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:42,009 INFO L124 PetriNetUnfolderBase]: 8504/16178 cut-off events. [2024-02-07 19:05:42,009 INFO L125 PetriNetUnfolderBase]: For 17456/17468 co-relation queries the response was YES. [2024-02-07 19:05:42,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39317 conditions, 16178 events. 8504/16178 cut-off events. For 17456/17468 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 119670 event pairs, 2784 based on Foata normal form. 78/14299 useless extension candidates. Maximal degree in co-relation 39293. Up to 5121 conditions per place. [2024-02-07 19:05:42,106 INFO L140 encePairwiseOnDemand]: 177/186 looper letters, 122 selfloop transitions, 17 changer transitions 0/177 dead transitions. [2024-02-07 19:05:42,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 177 transitions, 1006 flow [2024-02-07 19:05:42,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2024-02-07 19:05:42,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5698924731182796 [2024-02-07 19:05:42,109 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 539 flow. Second operand 4 states and 424 transitions. [2024-02-07 19:05:42,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 177 transitions, 1006 flow [2024-02-07 19:05:42,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 177 transitions, 986 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 19:05:42,224 INFO L231 Difference]: Finished difference. Result has 131 places, 128 transitions, 639 flow [2024-02-07 19:05:42,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=131, PETRI_TRANSITIONS=128} [2024-02-07 19:05:42,226 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 22 predicate places. [2024-02-07 19:05:42,226 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 639 flow [2024-02-07 19:05:42,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:42,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:42,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:42,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-02-07 19:05:42,227 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:42,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash 955784551, now seen corresponding path program 1 times [2024-02-07 19:05:42,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:42,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784663806] [2024-02-07 19:05:42,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:42,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:42,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:42,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:42,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784663806] [2024-02-07 19:05:42,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784663806] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:42,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:42,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:05:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554991746] [2024-02-07 19:05:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:42,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:05:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:05:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:05:42,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 186 [2024-02-07 19:05:42,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 639 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:42,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:42,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 186 [2024-02-07 19:05:42,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:43,313 INFO L124 PetriNetUnfolderBase]: 7369/14352 cut-off events. [2024-02-07 19:05:43,314 INFO L125 PetriNetUnfolderBase]: For 20768/20822 co-relation queries the response was YES. [2024-02-07 19:05:43,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35578 conditions, 14352 events. 7369/14352 cut-off events. For 20768/20822 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 107410 event pairs, 5570 based on Foata normal form. 37/12609 useless extension candidates. Maximal degree in co-relation 35552. Up to 10611 conditions per place. [2024-02-07 19:05:43,388 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 90 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-02-07 19:05:43,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 141 transitions, 867 flow [2024-02-07 19:05:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:05:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:05:43,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-02-07 19:05:43,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2024-02-07 19:05:43,389 INFO L175 Difference]: Start difference. First operand has 131 places, 128 transitions, 639 flow. Second operand 3 states and 351 transitions. [2024-02-07 19:05:43,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 141 transitions, 867 flow [2024-02-07 19:05:43,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 141 transitions, 855 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:43,478 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 646 flow [2024-02-07 19:05:43,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2024-02-07 19:05:43,479 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 22 predicate places. [2024-02-07 19:05:43,479 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 646 flow [2024-02-07 19:05:43,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:43,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:43,479 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] [2024-02-07 19:05:43,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-02-07 19:05:43,480 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:43,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash -435449302, now seen corresponding path program 1 times [2024-02-07 19:05:43,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:43,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874779058] [2024-02-07 19:05:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:43,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:43,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:43,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874779058] [2024-02-07 19:05:43,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874779058] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:43,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:43,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180217321] [2024-02-07 19:05:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:43,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:43,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:43,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 186 [2024-02-07 19:05:43,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 646 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:43,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:43,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 186 [2024-02-07 19:05:43,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:44,636 INFO L124 PetriNetUnfolderBase]: 7435/14463 cut-off events. [2024-02-07 19:05:44,637 INFO L125 PetriNetUnfolderBase]: For 20367/20421 co-relation queries the response was YES. [2024-02-07 19:05:44,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35739 conditions, 14463 events. 7435/14463 cut-off events. For 20367/20421 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 108275 event pairs, 5630 based on Foata normal form. 102/12837 useless extension candidates. Maximal degree in co-relation 35712. Up to 10718 conditions per place. [2024-02-07 19:05:44,725 INFO L140 encePairwiseOnDemand]: 178/186 looper letters, 106 selfloop transitions, 10 changer transitions 4/165 dead transitions. [2024-02-07 19:05:44,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 1004 flow [2024-02-07 19:05:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2024-02-07 19:05:44,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.578494623655914 [2024-02-07 19:05:44,727 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 646 flow. Second operand 5 states and 538 transitions. [2024-02-07 19:05:44,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 1004 flow [2024-02-07 19:05:44,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 991 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:44,816 INFO L231 Difference]: Finished difference. Result has 137 places, 130 transitions, 692 flow [2024-02-07 19:05:44,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=692, PETRI_PLACES=137, PETRI_TRANSITIONS=130} [2024-02-07 19:05:44,817 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 28 predicate places. [2024-02-07 19:05:44,817 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 130 transitions, 692 flow [2024-02-07 19:05:44,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:44,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:44,818 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2024-02-07 19:05:44,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-02-07 19:05:44,818 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:44,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1454820743, now seen corresponding path program 1 times [2024-02-07 19:05:44,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:44,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063775119] [2024-02-07 19:05:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:44,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:44,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:44,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063775119] [2024-02-07 19:05:44,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063775119] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:44,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:44,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:44,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998168140] [2024-02-07 19:05:44,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:44,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:44,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:44,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:44,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:44,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2024-02-07 19:05:44,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 130 transitions, 692 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:44,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:44,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2024-02-07 19:05:44,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:46,235 INFO L124 PetriNetUnfolderBase]: 9116/17372 cut-off events. [2024-02-07 19:05:46,236 INFO L125 PetriNetUnfolderBase]: For 24708/24786 co-relation queries the response was YES. [2024-02-07 19:05:46,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42753 conditions, 17372 events. 9116/17372 cut-off events. For 24708/24786 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 131129 event pairs, 3817 based on Foata normal form. 424/15813 useless extension candidates. Maximal degree in co-relation 42723. Up to 6455 conditions per place. [2024-02-07 19:05:46,336 INFO L140 encePairwiseOnDemand]: 173/186 looper letters, 133 selfloop transitions, 17 changer transitions 3/192 dead transitions. [2024-02-07 19:05:46,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 192 transitions, 1209 flow [2024-02-07 19:05:46,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2024-02-07 19:05:46,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-02-07 19:05:46,338 INFO L175 Difference]: Start difference. First operand has 137 places, 130 transitions, 692 flow. Second operand 4 states and 450 transitions. [2024-02-07 19:05:46,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 192 transitions, 1209 flow [2024-02-07 19:05:46,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 1204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:05:46,470 INFO L231 Difference]: Finished difference. Result has 141 places, 129 transitions, 747 flow [2024-02-07 19:05:46,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=747, PETRI_PLACES=141, PETRI_TRANSITIONS=129} [2024-02-07 19:05:46,470 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 32 predicate places. [2024-02-07 19:05:46,471 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 129 transitions, 747 flow [2024-02-07 19:05:46,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:46,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:46,471 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2024-02-07 19:05:46,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-02-07 19:05:46,471 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:46,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash 425155069, now seen corresponding path program 2 times [2024-02-07 19:05:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:46,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622223975] [2024-02-07 19:05:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:46,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:46,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622223975] [2024-02-07 19:05:46,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622223975] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:46,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:46,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:46,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806339387] [2024-02-07 19:05:46,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:46,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:46,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:46,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:46,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:46,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2024-02-07 19:05:46,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 129 transitions, 747 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:46,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:46,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2024-02-07 19:05:46,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:47,401 INFO L124 PetriNetUnfolderBase]: 5435/10067 cut-off events. [2024-02-07 19:05:47,402 INFO L125 PetriNetUnfolderBase]: For 16913/16943 co-relation queries the response was YES. [2024-02-07 19:05:47,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23578 conditions, 10067 events. 5435/10067 cut-off events. For 16913/16943 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 63402 event pairs, 1233 based on Foata normal form. 552/9401 useless extension candidates. Maximal degree in co-relation 23545. Up to 2955 conditions per place. [2024-02-07 19:05:47,458 INFO L140 encePairwiseOnDemand]: 177/186 looper letters, 97 selfloop transitions, 11 changer transitions 16/148 dead transitions. [2024-02-07 19:05:47,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 148 transitions, 884 flow [2024-02-07 19:05:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2024-02-07 19:05:47,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766129032258065 [2024-02-07 19:05:47,460 INFO L175 Difference]: Start difference. First operand has 141 places, 129 transitions, 747 flow. Second operand 4 states and 429 transitions. [2024-02-07 19:05:47,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 148 transitions, 884 flow [2024-02-07 19:05:47,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 148 transitions, 788 flow, removed 5 selfloop flow, removed 22 redundant places. [2024-02-07 19:05:47,493 INFO L231 Difference]: Finished difference. Result has 112 places, 86 transitions, 432 flow [2024-02-07 19:05:47,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=432, PETRI_PLACES=112, PETRI_TRANSITIONS=86} [2024-02-07 19:05:47,494 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 3 predicate places. [2024-02-07 19:05:47,494 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 86 transitions, 432 flow [2024-02-07 19:05:47,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:47,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:47,494 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2024-02-07 19:05:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-02-07 19:05:47,495 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:47,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:47,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1467516691, now seen corresponding path program 1 times [2024-02-07 19:05:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:47,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249166719] [2024-02-07 19:05:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:05:47,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:47,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249166719] [2024-02-07 19:05:47,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249166719] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:47,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:47,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:05:47,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588956529] [2024-02-07 19:05:47,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:47,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 19:05:47,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 19:05:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-07 19:05:47,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 186 [2024-02-07 19:05:47,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 86 transitions, 432 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:47,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:47,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 186 [2024-02-07 19:05:47,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:48,246 INFO L124 PetriNetUnfolderBase]: 4875/8893 cut-off events. [2024-02-07 19:05:48,246 INFO L125 PetriNetUnfolderBase]: For 9924/9996 co-relation queries the response was YES. [2024-02-07 19:05:48,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21164 conditions, 8893 events. 4875/8893 cut-off events. For 9924/9996 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 53889 event pairs, 3486 based on Foata normal form. 42/7831 useless extension candidates. Maximal degree in co-relation 21143. Up to 6173 conditions per place. [2024-02-07 19:05:48,289 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 75 selfloop transitions, 10 changer transitions 0/114 dead transitions. [2024-02-07 19:05:48,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 114 transitions, 715 flow [2024-02-07 19:05:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:05:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:05:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2024-02-07 19:05:48,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6118279569892473 [2024-02-07 19:05:48,291 INFO L175 Difference]: Start difference. First operand has 112 places, 86 transitions, 432 flow. Second operand 5 states and 569 transitions. [2024-02-07 19:05:48,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 114 transitions, 715 flow [2024-02-07 19:05:48,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 114 transitions, 688 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-02-07 19:05:48,309 INFO L231 Difference]: Finished difference. Result has 98 places, 86 transitions, 444 flow [2024-02-07 19:05:48,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=444, PETRI_PLACES=98, PETRI_TRANSITIONS=86} [2024-02-07 19:05:48,310 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -11 predicate places. [2024-02-07 19:05:48,310 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 86 transitions, 444 flow [2024-02-07 19:05:48,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:48,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:48,311 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2024-02-07 19:05:48,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-02-07 19:05:48,311 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:48,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:48,311 INFO L85 PathProgramCache]: Analyzing trace with hash 373511063, now seen corresponding path program 1 times [2024-02-07 19:05:48,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:48,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58565129] [2024-02-07 19:05:48,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:48,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:48,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-07 19:05:48,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:48,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58565129] [2024-02-07 19:05:48,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58565129] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:48,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:48,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:48,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518826811] [2024-02-07 19:05:48,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:48,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:48,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:48,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 186 [2024-02-07 19:05:48,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 86 transitions, 444 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:48,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:48,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 186 [2024-02-07 19:05:48,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:49,074 INFO L124 PetriNetUnfolderBase]: 5489/9819 cut-off events. [2024-02-07 19:05:49,075 INFO L125 PetriNetUnfolderBase]: For 11814/11886 co-relation queries the response was YES. [2024-02-07 19:05:49,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23801 conditions, 9819 events. 5489/9819 cut-off events. For 11814/11886 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 59431 event pairs, 1678 based on Foata normal form. 72/8687 useless extension candidates. Maximal degree in co-relation 23781. Up to 6177 conditions per place. [2024-02-07 19:05:49,120 INFO L140 encePairwiseOnDemand]: 176/186 looper letters, 88 selfloop transitions, 13 changer transitions 0/123 dead transitions. [2024-02-07 19:05:49,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 123 transitions, 736 flow [2024-02-07 19:05:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 402 transitions. [2024-02-07 19:05:49,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2024-02-07 19:05:49,122 INFO L175 Difference]: Start difference. First operand has 98 places, 86 transitions, 444 flow. Second operand 4 states and 402 transitions. [2024-02-07 19:05:49,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 123 transitions, 736 flow [2024-02-07 19:05:49,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 123 transitions, 718 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-02-07 19:05:49,154 INFO L231 Difference]: Finished difference. Result has 96 places, 84 transitions, 457 flow [2024-02-07 19:05:49,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=457, PETRI_PLACES=96, PETRI_TRANSITIONS=84} [2024-02-07 19:05:49,154 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -13 predicate places. [2024-02-07 19:05:49,155 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 84 transitions, 457 flow [2024-02-07 19:05:49,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:49,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:49,155 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2024-02-07 19:05:49,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-02-07 19:05:49,155 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:49,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash 318394379, now seen corresponding path program 1 times [2024-02-07 19:05:49,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:49,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276308920] [2024-02-07 19:05:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:49,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-07 19:05:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276308920] [2024-02-07 19:05:49,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276308920] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:49,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:49,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13949210] [2024-02-07 19:05:49,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:49,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:49,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 186 [2024-02-07 19:05:49,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:49,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:49,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 186 [2024-02-07 19:05:49,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:49,877 INFO L124 PetriNetUnfolderBase]: 4844/8820 cut-off events. [2024-02-07 19:05:49,877 INFO L125 PetriNetUnfolderBase]: For 9963/9999 co-relation queries the response was YES. [2024-02-07 19:05:49,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21247 conditions, 8820 events. 4844/8820 cut-off events. For 9963/9999 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 53345 event pairs, 3582 based on Foata normal form. 12/7763 useless extension candidates. Maximal degree in co-relation 21227. Up to 5783 conditions per place. [2024-02-07 19:05:49,920 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 79 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-02-07 19:05:49,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 109 transitions, 697 flow [2024-02-07 19:05:49,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2024-02-07 19:05:49,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.592741935483871 [2024-02-07 19:05:49,942 INFO L175 Difference]: Start difference. First operand has 96 places, 84 transitions, 457 flow. Second operand 4 states and 441 transitions. [2024-02-07 19:05:49,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 109 transitions, 697 flow [2024-02-07 19:05:49,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 109 transitions, 662 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-02-07 19:05:49,963 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 428 flow [2024-02-07 19:05:49,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-02-07 19:05:49,964 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -16 predicate places. [2024-02-07 19:05:49,964 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 428 flow [2024-02-07 19:05:49,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:49,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:05:49,965 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:49,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-02-07 19:05:49,965 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (and 44 more)] === [2024-02-07 19:05:49,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:05:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash 824060020, now seen corresponding path program 1 times [2024-02-07 19:05:49,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:05:49,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40542] [2024-02-07 19:05:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:05:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:05:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:05:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-07 19:05:50,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:05:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40542] [2024-02-07 19:05:50,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40542] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:05:50,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:05:50,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:05:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247570331] [2024-02-07 19:05:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:05:50,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:05:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:05:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:05:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:05:50,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2024-02-07 19:05:50,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:50,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:05:50,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2024-02-07 19:05:50,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:05:50,733 INFO L124 PetriNetUnfolderBase]: 4662/8314 cut-off events. [2024-02-07 19:05:50,733 INFO L125 PetriNetUnfolderBase]: For 9126/9144 co-relation queries the response was YES. [2024-02-07 19:05:50,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19443 conditions, 8314 events. 4662/8314 cut-off events. For 9126/9144 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 49692 event pairs, 3201 based on Foata normal form. 126/7439 useless extension candidates. Maximal degree in co-relation 19423. Up to 5408 conditions per place. [2024-02-07 19:05:50,753 INFO L140 encePairwiseOnDemand]: 179/186 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2024-02-07 19:05:50,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 692 flow [2024-02-07 19:05:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:05:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:05:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2024-02-07 19:05:50,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5470430107526881 [2024-02-07 19:05:50,755 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 428 flow. Second operand 4 states and 407 transitions. [2024-02-07 19:05:50,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 117 transitions, 692 flow [2024-02-07 19:05:50,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 117 transitions, 663 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-02-07 19:05:50,770 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2024-02-07 19:05:50,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2024-02-07 19:05:50,771 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places. [2024-02-07 19:05:50,771 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2024-02-07 19:05:50,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:05:50,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 47 remaining) [2024-02-07 19:05:50,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 47 remaining) [2024-02-07 19:05:50,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (44 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (41 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 47 remaining) [2024-02-07 19:05:50,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (38 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (34 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 47 remaining) [2024-02-07 19:05:50,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONERROR_FUNCTION (27 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 47 remaining) [2024-02-07 19:05:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONERROR_FUNCTION (19 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 47 remaining) [2024-02-07 19:05:50,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 47 remaining) [2024-02-07 19:05:50,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr13ASSERT_VIOLATIONERROR_FUNCTION (9 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 47 remaining) [2024-02-07 19:05:50,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 47 remaining) [2024-02-07 19:05:50,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 47 remaining) [2024-02-07 19:05:50,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-02-07 19:05:50,781 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:05:50,785 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:05:50,785 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:05:50,788 INFO L503 ceAbstractionStarter]: Automizer considered 21 witness invariants [2024-02-07 19:05:50,788 INFO L504 ceAbstractionStarter]: WitnessConsidered=21 [2024-02-07 19:05:50,789 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:05:50 BasicIcfg [2024-02-07 19:05:50,789 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:05:50,790 INFO L158 Benchmark]: Toolchain (without parser) took 29043.78ms. Allocated memory was 176.2MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 107.4MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-02-07 19:05:50,790 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:05:50,790 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:05:50,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1128.38ms. Allocated memory was 176.2MB in the beginning and 239.1MB in the end (delta: 62.9MB). Free memory was 107.4MB in the beginning and 155.6MB in the end (delta: -48.2MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2024-02-07 19:05:50,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.03ms. Allocated memory is still 239.1MB. Free memory was 155.6MB in the beginning and 151.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 19:05:50,791 INFO L158 Benchmark]: Boogie Preprocessor took 77.34ms. Allocated memory is still 239.1MB. Free memory was 151.4MB in the beginning and 146.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-02-07 19:05:50,791 INFO L158 Benchmark]: RCFGBuilder took 772.15ms. Allocated memory is still 239.1MB. Free memory was 146.1MB in the beginning and 86.4MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-02-07 19:05:50,791 INFO L158 Benchmark]: TraceAbstraction took 26978.86ms. Allocated memory was 239.1MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 85.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-02-07 19:05:50,792 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1128.38ms. Allocated memory was 176.2MB in the beginning and 239.1MB in the end (delta: 62.9MB). Free memory was 107.4MB in the beginning and 155.6MB in the end (delta: -48.2MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.03ms. Allocated memory is still 239.1MB. Free memory was 155.6MB in the beginning and 151.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.34ms. Allocated memory is still 239.1MB. Free memory was 151.4MB in the beginning and 146.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 772.15ms. Allocated memory is still 239.1MB. Free memory was 146.1MB in the beginning and 86.4MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 26978.86ms. Allocated memory was 239.1MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 85.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1778]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1784]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 1791]: 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]: 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: 1748]: 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: 1756]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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: 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: 1732]: 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: 1726]: 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]: 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, 177 locations, 47 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: 26.7s, OverallIterations: 23, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2932 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2038 mSDsluCounter, 390 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216 mSDsCounter, 264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5891 IncrementalHoareTripleChecker+Invalid, 6155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 264 mSolverCounterUnsat, 174 mSDtfsCounter, 5891 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=747occurred in iteration=18, InterpolantAutomatonStates: 97, 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, 1.9s InterpolantComputationTime, 511 NumberOfCodeBlocks, 511 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 42/42 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 27 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 19:05:50,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE