./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/circular_buffer_ok.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/pthread-deagle/circular_buffer_ok.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/circular_buffer_ok.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 23:00:08,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 23:00:08,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 23:00:08,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 23:00:08,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 23:00:08,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 23:00:08,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 23:00:08,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 23:00:08,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 23:00:08,910 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 23:00:08,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 23:00:08,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 23:00:08,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 23:00:08,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 23:00:08,912 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 23:00:08,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 23:00:08,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 23:00:08,913 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 23:00:08,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 23:00:08,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 23:00:08,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 23:00:08,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 23:00:08,915 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 23:00:08,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 23:00:08,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 23:00:08,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 23:00:08,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 23:00:08,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 23:00:08,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 23:00:08,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 23:00:08,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 23:00:08,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 23:00:08,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 23:00:08,918 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 23:00:09,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 23:00:09,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 23:00:09,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 23:00:09,147 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 23:00:09,148 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 23:00:09,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/circular_buffer_ok.yml/witness.yml [2024-01-29 23:00:09,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 23:00:09,309 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 23:00:09,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-01-29 23:00:10,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 23:00:10,450 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 23:00:10,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-01-29 23:00:10,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e12279/b9845fdf86db4cadba01f4be9510c36c/FLAGc8f2fb446 [2024-01-29 23:00:10,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f9e12279/b9845fdf86db4cadba01f4be9510c36c [2024-01-29 23:00:10,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 23:00:10,472 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 23:00:10,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 23:00:10,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 23:00:10,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 23:00:10,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:09" (1/2) ... [2024-01-29 23:00:10,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b5f0cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 11:00:10, skipping insertion in model container [2024-01-29 23:00:10,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:09" (1/2) ... [2024-01-29 23:00:10,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2980ea60 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 11:00:10, skipping insertion in model container [2024-01-29 23:00:10,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:00:10" (2/2) ... [2024-01-29 23:00:10,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b5f0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:10, skipping insertion in model container [2024-01-29 23:00:10,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:00:10" (2/2) ... [2024-01-29 23:00:10,481 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 23:00:10,600 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 23:00:10,601 INFO L98 nessWitnessExtractor]: Location invariant before [L745-L745] (unsigned long )arg == 0UL [2024-01-29 23:00:10,601 INFO L98 nessWitnessExtractor]: Location invariant before [L745-L745] ((unsigned long )arg == 0UL) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,601 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] 0 <= value [2024-01-29 23:00:10,601 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (0 <= value) && (send == (_Bool)0) [2024-01-29 23:00:10,601 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (0 <= value) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (0 <= value) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (0 <= value) && (((((i == 3 || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || i == 4) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] 0 <= value [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (0 <= value) && (receive == (_Bool)1) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,602 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (0 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((0 <= value) && (value <= 6)) && (send == (_Bool)1) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((0 <= value) && (value <= 6)) && (b <= 6) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] 0 <= value [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((0 <= value) && (value <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,603 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] 0 <= value [2024-01-29 23:00:10,604 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (0 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,604 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,604 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (0 <= value) && (receive == (_Bool)1) [2024-01-29 23:00:10,604 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] ((0 <= value) && (0 <= b)) && (value <= 6) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] (((0 <= value) && (0 <= b)) && (value <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] (((0 <= value) && (0 <= b)) && (value <= 6)) && (b <= 6) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] (((0 <= value) && (0 <= b)) && (value <= 6)) && (send == (_Bool)1) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] 0 <= value [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,605 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] ((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] ((0 <= value) && (receive == (_Bool)0 || receive == (_Bool)1)) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] (0 <= value) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] ((0 <= value) && (value <= 6)) && ((((((((((i == 4 || i == 3) || i == 3) || i == 2) || i == 2) || i == 1) || i == 1) || (0 == i && i == 0)) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] ((0 <= value) && (value <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] 0 <= value [2024-01-29 23:00:10,606 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] (0 <= value) && (send == (_Bool)1) [2024-01-29 23:00:10,607 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] (0 <= value) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,607 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] 0 <= value [2024-01-29 23:00:10,608 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L731] ((0 <= value) && (value <= 6)) && (send == (_Bool)1) [2024-01-29 23:00:10,608 INFO L98 nessWitnessExtractor]: Location invariant after [L730-L731] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,608 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] (i == 7) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] i == 7 [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] ((0 <= value) && (value <= 6)) && (receive == (_Bool)1) [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] ((0 <= value) && (receive == (_Bool)1)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] (0 <= value) && (receive == (_Bool)1) [2024-01-29 23:00:10,609 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] ((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] ((0 <= value) && (value <= 6)) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] 0 <= value [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] 0 <= value [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] (((0 <= value) && (receive == (_Bool)1)) && ((unsigned long )arg == 0UL)) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant after [L748-L749] ((0 <= value) && (value <= 6)) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,610 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,611 INFO L98 nessWitnessExtractor]: Location invariant before [L748-L749] (((0 <= value) && (receive == (_Bool)1)) && ((unsigned long )arg == 0UL)) && ((((((((((i == 4 || i == 3) || i == 3) || i == 2) || i == 2) || i == 1) || i == 1) || (0 == i && i == 0)) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,611 INFO L98 nessWitnessExtractor]: Location invariant before [L763-L763] send == (_Bool)1 [2024-01-29 23:00:10,611 INFO L98 nessWitnessExtractor]: Location invariant before [L763-L763] (send == (_Bool)1) && (value == 0) [2024-01-29 23:00:10,612 INFO L98 nessWitnessExtractor]: Location invariant before [L763-L763] (send == (_Bool)1) && (receive == (_Bool)0) [2024-01-29 23:00:10,612 INFO L98 nessWitnessExtractor]: Location invariant before [L762-L762] ((send == (_Bool)1) && (receive == (_Bool)0)) && (value == 0) [2024-01-29 23:00:10,612 INFO L98 nessWitnessExtractor]: Location invariant before [L762-L762] (send == (_Bool)1) && (receive == (_Bool)0) [2024-01-29 23:00:10,612 INFO L98 nessWitnessExtractor]: Location invariant before [L762-L762] send == (_Bool)1 [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] ((-128 <= value) && (0 <= value)) && (value <= 6) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (((-128 <= value) && (0 <= value)) && (value <= 6)) && (((((i == 3 || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || i == 4) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (-128 <= value) && (0 <= value) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (((-128 <= value) && (0 <= value)) && (value <= 6)) && (receive == (_Bool)1) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (((-128 <= value) && (0 <= value)) && (value <= 6)) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (((-128 <= value) && (0 <= value)) && (value <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] -128 <= value [2024-01-29 23:00:10,613 INFO L98 nessWitnessExtractor]: Location invariant before [L750-L750] (((-128 <= value) && (0 <= value)) && (value <= 6)) && (value <= 127) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] (0 <= value) && (b <= 6) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] 0 <= value [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] ((0 <= value) && (b <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L719] ((0 <= value) && (b <= 6)) && (send == (_Bool)1) [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Loop invariant at [L725-L737] (unsigned long )arg == 0UL [2024-01-29 23:00:10,614 INFO L98 nessWitnessExtractor]: Loop invariant at [L743-L754] (unsigned long )arg == 0UL [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] 0 <= value [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (0 <= value) && (receive == (_Bool)0) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (0 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (0 <= value) && (((((i == 3 || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || i == 4) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L753-L753] (0 <= value) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] (send == (_Bool)0) && (receive == (_Bool)0) [2024-01-29 23:00:10,615 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] ((send == (_Bool)0) && (receive == (_Bool)0)) && (value == 0) [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L760-L760] send == (_Bool)0 [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] (unsigned long )arg == 0UL [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] ((unsigned long )arg == 0UL) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= value [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] (0 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] (0 <= value) && (receive == (_Bool)1) [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,616 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 10 == max [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (10 == max) && (receive == (_Bool)0) [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (10 == max) && (value == 0) [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (10 == max) && (send == (_Bool)0) [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (10 == max) && (max == 10) [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant after [L689-L693] 10 == max [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant after [L689-L693] (10 == max) && (max == 10) [2024-01-29 23:00:10,617 INFO L98 nessWitnessExtractor]: Location invariant after [L689-L693] (10 == max) && (receive == (_Bool)0) [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant after [L689-L693] (10 == max) && (send == (_Bool)0) [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant after [L689-L693] (10 == max) && (value == 0) [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 10 == max [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (10 == max) && (send == (_Bool)0) [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (10 == max) && (receive == (_Bool)0) [2024-01-29 23:00:10,618 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (10 == max) && (value == 0) [2024-01-29 23:00:10,619 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (10 == max) && (max == 10) [2024-01-29 23:00:10,619 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] ((send == (_Bool)1) && (receive == (_Bool)0 || receive == (_Bool)1)) && ((((((value == 3 && i == 3) || (value == 2 && i == 2)) || (value == 1 && i == 1)) || ((0 == i && value == 0) && i == 0)) || (((5 <= value && 5 <= i) && value <= 6) && i <= 6)) || (value == 4 && i == 4)) [2024-01-29 23:00:10,619 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] (send == (_Bool)1) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,619 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] send == (_Bool)1 [2024-01-29 23:00:10,620 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] (send == (_Bool)1) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,620 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] ((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,620 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] (((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,620 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,621 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] (((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL)) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,621 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] (((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL)) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L746-L752] 0 <= value [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] ((0 <= value) && (value <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] (((0 <= value) && (value <= 6)) && (receive == (_Bool)0 || receive == (_Bool)1)) && (((((i == 3 || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || i == 4) [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] 0 <= value [2024-01-29 23:00:10,622 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] ((0 <= value) && (value <= 6)) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] ((0 <= value) && (value <= 6)) && (send == (_Bool)1) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L704] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L704] 0 <= value [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L704] ((0 <= value) && (value <= 6)) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L704] ((0 <= value) && (value <= 6)) && (receive == (_Bool)1) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (((((i == 3 || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) || i == 4) [2024-01-29 23:00:10,623 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] -128 <= value [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (0 <= value) [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (value <= 127) [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (value <= 6) [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && (receive == (_Bool)0) [2024-01-29 23:00:10,624 INFO L98 nessWitnessExtractor]: Location invariant before [L751-L751] (-128 <= value) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] ((0 <= value) && (0 <= b)) && (value <= 6) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] ((0 <= value) && (0 <= b)) && (b <= 6) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] ((0 <= value) && (0 <= b)) && (send == (_Bool)1) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] ((0 <= value) && (0 <= b)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L714] 0 <= value [2024-01-29 23:00:10,625 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] (0 <= value) && (send == (_Bool)0 || send == (_Bool)1) [2024-01-29 23:00:10,626 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] ((0 <= value) && (send == (_Bool)0 || send == (_Bool)1)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,626 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] 0 <= value [2024-01-29 23:00:10,626 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,626 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] ((0 <= value) && (send == (_Bool)0 || send == (_Bool)1)) && (((((i == 4 || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) || (5 <= i && i <= 6)) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L728-L735] (0 <= value) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] send == (_Bool)0 [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (send == (_Bool)0) && (receive == (_Bool)0) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (send == (_Bool)0) && (value == 0) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L738-L738] i == 7 [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L738-L738] (i == 7) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] (send == (_Bool)0) && ((unsigned long )arg == 0UL) [2024-01-29 23:00:10,627 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] ((send == (_Bool)0) && ((unsigned long )arg == 0UL)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] send == (_Bool)0 [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] ((send == (_Bool)0) && ((unsigned long )arg == 0UL)) && ((((((value == 3 && i == 3) || (value == 2 && i == 2)) || (value == 1 && i == 1)) || ((0 == i && value == 0) && i == 0)) || (((5 <= value && 5 <= i) && value <= 6) && i <= 6)) || (value == 4 && i == 4)) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] ((send == (_Bool)0) && (receive == (_Bool)0)) && (value == 0) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] (send == (_Bool)0) && (receive == (_Bool)0) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L759-L759] send == (_Bool)0 [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((0 <= value) && (0 <= b)) && (value <= 6) [2024-01-29 23:00:10,628 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((0 <= value) && (0 <= b)) && (b <= 6) [2024-01-29 23:00:10,629 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((0 <= value) && (0 <= b)) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,629 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] ((0 <= value) && (0 <= b)) && (send == (_Bool)1) [2024-01-29 23:00:10,629 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] 0 <= value [2024-01-29 23:00:10,629 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] 0 <= value [2024-01-29 23:00:10,629 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (0 <= value) && (value <= 6) [2024-01-29 23:00:10,630 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (0 <= value) && (receive == (_Bool)0 || receive == (_Bool)1) [2024-01-29 23:00:10,630 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (0 <= value) && (0 <= b) [2024-01-29 23:00:10,630 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (0 <= value) && (b <= 6) [2024-01-29 23:00:10,630 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (0 <= value) && (send == (_Bool)1) [2024-01-29 23:00:10,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 23:00:10,958 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2024-01-29 23:00:10,965 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2024-01-29 23:00:10,972 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2024-01-29 23:00:10,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 23:00:10,992 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:11,060 WARN L424 MainDispatcher]: Unable to annotate void initLog(int max) { buffer_size = max; first = next = 0; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:11,094 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:11,114 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:11,141 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:11,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 23:00:11,189 INFO L206 MainTranslator]: Completed translation [2024-01-29 23:00:11,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11 WrapperNode [2024-01-29 23:00:11,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 23:00:11,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 23:00:11,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 23:00:11,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 23:00:11,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,249 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 315 [2024-01-29 23:00:11,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 23:00:11,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 23:00:11,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 23:00:11,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 23:00:11,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,264 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,286 INFO L175 MemorySlicer]: Split 18 memory accesses to 6 slices as follows [2, 1, 3, 8, 2, 2]. 44 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 0, 8, 0, 0]. The 4 writes are split as follows [0, 0, 2, 0, 1, 1]. [2024-01-29 23:00:11,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 23:00:11,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 23:00:11,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 23:00:11,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 23:00:11,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (1/1) ... [2024-01-29 23:00:11,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 23:00:11,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 23:00:11,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 23:00:11,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 23:00:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 23:00:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 23:00:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 23:00:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-01-29 23:00:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-01-29 23:00:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 23:00:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 23:00:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 23:00:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 23:00:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 23:00:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 23:00:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 23:00:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 23:00:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 23:00:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 23:00:11,398 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 23:00:11,547 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 23:00:11,549 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 23:00:12,219 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 23:00:12,219 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 23:00:12,279 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 23:00:12,279 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 23:00:12,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:00:12 BoogieIcfgContainer [2024-01-29 23:00:12,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 23:00:12,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 23:00:12,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 23:00:12,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 23:00:12,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:09" (1/4) ... [2024-01-29 23:00:12,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8b9376 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 11:00:12, skipping insertion in model container [2024-01-29 23:00:12,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 11:00:10" (2/4) ... [2024-01-29 23:00:12,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8b9376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:00:12, skipping insertion in model container [2024-01-29 23:00:12,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:11" (3/4) ... [2024-01-29 23:00:12,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8b9376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:00:12, skipping insertion in model container [2024-01-29 23:00:12,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:00:12" (4/4) ... [2024-01-29 23:00:12,285 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2024-01-29 23:00:12,298 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 23:00:12,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 170 error locations. [2024-01-29 23:00:12,299 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 23:00:12,419 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 23:00:12,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 381 transitions, 776 flow [2024-01-29 23:00:12,563 INFO L124 PetriNetUnfolderBase]: 9/379 cut-off events. [2024-01-29 23:00:12,563 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 23:00:12,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 379 events. 9/379 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1342 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 325. Up to 2 conditions per place. [2024-01-29 23:00:12,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 379 places, 381 transitions, 776 flow [2024-01-29 23:00:12,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 377 transitions, 763 flow [2024-01-29 23:00:12,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 23:00:12,607 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;@13e1a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 23:00:12,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 317 error locations. [2024-01-29 23:00:12,611 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 23:00:12,611 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 23:00:12,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 23:00:12,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:12,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 23:00:12,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:12,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:12,630 INFO L85 PathProgramCache]: Analyzing trace with hash 28595, now seen corresponding path program 1 times [2024-01-29 23:00:12,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:12,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379194521] [2024-01-29 23:00:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:12,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:12,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379194521] [2024-01-29 23:00:12,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379194521] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:12,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:12,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 23:00:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081292539] [2024-01-29 23:00:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:12,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 23:00:12,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 23:00:12,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 23:00:13,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 381 [2024-01-29 23:00:13,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 377 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:13,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:13,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 381 [2024-01-29 23:00:13,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:14,243 INFO L124 PetriNetUnfolderBase]: 2128/10543 cut-off events. [2024-01-29 23:00:14,243 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-01-29 23:00:14,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13996 conditions, 10543 events. 2128/10543 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 109296 event pairs, 1305 based on Foata normal form. 210/7305 useless extension candidates. Maximal degree in co-relation 13510. Up to 2698 conditions per place. [2024-01-29 23:00:14,312 INFO L140 encePairwiseOnDemand]: 369/381 looper letters, 86 selfloop transitions, 4 changer transitions 0/397 dead transitions. [2024-01-29 23:00:14,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 397 transitions, 989 flow [2024-01-29 23:00:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 23:00:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 23:00:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2024-01-29 23:00:14,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2024-01-29 23:00:14,327 INFO L175 Difference]: Start difference. First operand has 375 places, 377 transitions, 763 flow. Second operand 3 states and 1026 transitions. [2024-01-29 23:00:14,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 397 transitions, 989 flow [2024-01-29 23:00:14,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 397 transitions, 981 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:14,339 INFO L231 Difference]: Finished difference. Result has 372 places, 372 transitions, 766 flow [2024-01-29 23:00:14,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=766, PETRI_PLACES=372, PETRI_TRANSITIONS=372} [2024-01-29 23:00:14,359 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -3 predicate places. [2024-01-29 23:00:14,359 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 372 transitions, 766 flow [2024-01-29 23:00:14,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:14,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:14,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 23:00:14,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 23:00:14,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:14,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash 887359, now seen corresponding path program 1 times [2024-01-29 23:00:14,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:14,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523168916] [2024-01-29 23:00:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:14,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523168916] [2024-01-29 23:00:14,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523168916] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:14,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:14,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 23:00:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116009061] [2024-01-29 23:00:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:14,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 381 [2024-01-29 23:00:14,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 372 transitions, 766 flow. Second operand has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:14,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:14,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 381 [2024-01-29 23:00:14,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:15,539 INFO L124 PetriNetUnfolderBase]: 1754/7697 cut-off events. [2024-01-29 23:00:15,540 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-01-29 23:00:15,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10788 conditions, 7697 events. 1754/7697 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 67400 event pairs, 798 based on Foata normal form. 92/5694 useless extension candidates. Maximal degree in co-relation 8175. Up to 1322 conditions per place. [2024-01-29 23:00:15,576 INFO L140 encePairwiseOnDemand]: 368/381 looper letters, 115 selfloop transitions, 8 changer transitions 0/404 dead transitions. [2024-01-29 23:00:15,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 404 transitions, 1081 flow [2024-01-29 23:00:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1261 transitions. [2024-01-29 23:00:15,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8274278215223098 [2024-01-29 23:00:15,579 INFO L175 Difference]: Start difference. First operand has 372 places, 372 transitions, 766 flow. Second operand 4 states and 1261 transitions. [2024-01-29 23:00:15,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 404 transitions, 1081 flow [2024-01-29 23:00:15,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 404 transitions, 1071 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:15,585 INFO L231 Difference]: Finished difference. Result has 371 places, 370 transitions, 792 flow [2024-01-29 23:00:15,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=792, PETRI_PLACES=371, PETRI_TRANSITIONS=370} [2024-01-29 23:00:15,586 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -4 predicate places. [2024-01-29 23:00:15,586 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 370 transitions, 792 flow [2024-01-29 23:00:15,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 283.75) internal successors, (1135), 4 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:15,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:15,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 23:00:15,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 23:00:15,588 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:15,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash 27509001, now seen corresponding path program 1 times [2024-01-29 23:00:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:15,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025380430] [2024-01-29 23:00:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:15,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:15,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:15,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025380430] [2024-01-29 23:00:15,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025380430] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:15,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:15,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:15,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414901836] [2024-01-29 23:00:15,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:15,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:00:15,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:15,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:00:15,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:00:16,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 381 [2024-01-29 23:00:16,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 370 transitions, 792 flow. Second operand has 5 states, 5 states have (on average 211.8) internal successors, (1059), 5 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:16,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:16,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 381 [2024-01-29 23:00:16,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:18,687 INFO L124 PetriNetUnfolderBase]: 8110/23327 cut-off events. [2024-01-29 23:00:18,687 INFO L125 PetriNetUnfolderBase]: For 1333/1343 co-relation queries the response was YES. [2024-01-29 23:00:18,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38046 conditions, 23327 events. 8110/23327 cut-off events. For 1333/1343 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 227185 event pairs, 4362 based on Foata normal form. 986/20637 useless extension candidates. Maximal degree in co-relation 32889. Up to 10791 conditions per place. [2024-01-29 23:00:18,915 INFO L140 encePairwiseOnDemand]: 343/381 looper letters, 237 selfloop transitions, 6 changer transitions 0/452 dead transitions. [2024-01-29 23:00:18,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 452 transitions, 1465 flow [2024-01-29 23:00:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 23:00:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 23:00:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1344 transitions. [2024-01-29 23:00:18,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.705511811023622 [2024-01-29 23:00:18,919 INFO L175 Difference]: Start difference. First operand has 371 places, 370 transitions, 792 flow. Second operand 5 states and 1344 transitions. [2024-01-29 23:00:18,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 452 transitions, 1465 flow [2024-01-29 23:00:18,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 452 transitions, 1462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 23:00:18,929 INFO L231 Difference]: Finished difference. Result has 374 places, 371 transitions, 917 flow [2024-01-29 23:00:18,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=917, PETRI_PLACES=374, PETRI_TRANSITIONS=371} [2024-01-29 23:00:18,931 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -1 predicate places. [2024-01-29 23:00:18,932 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 371 transitions, 917 flow [2024-01-29 23:00:18,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 211.8) internal successors, (1059), 5 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:18,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:18,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:18,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 23:00:18,935 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:18,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 437511447, now seen corresponding path program 1 times [2024-01-29 23:00:18,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:18,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704373210] [2024-01-29 23:00:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:18,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704373210] [2024-01-29 23:00:18,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704373210] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:18,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:18,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 23:00:18,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709910051] [2024-01-29 23:00:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:18,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 23:00:18,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 23:00:18,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 23:00:19,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 381 [2024-01-29 23:00:19,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 371 transitions, 917 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:19,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:19,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 381 [2024-01-29 23:00:19,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:20,002 INFO L124 PetriNetUnfolderBase]: 2152/9536 cut-off events. [2024-01-29 23:00:20,003 INFO L125 PetriNetUnfolderBase]: For 2945/5101 co-relation queries the response was YES. [2024-01-29 23:00:20,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15821 conditions, 9536 events. 2152/9536 cut-off events. For 2945/5101 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 89673 event pairs, 1632 based on Foata normal form. 28/6818 useless extension candidates. Maximal degree in co-relation 11794. Up to 2385 conditions per place. [2024-01-29 23:00:20,056 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 54 selfloop transitions, 2 changer transitions 0/367 dead transitions. [2024-01-29 23:00:20,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 367 transitions, 1021 flow [2024-01-29 23:00:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 23:00:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 23:00:20,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-01-29 23:00:20,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8853893263342082 [2024-01-29 23:00:20,058 INFO L175 Difference]: Start difference. First operand has 374 places, 371 transitions, 917 flow. Second operand 3 states and 1012 transitions. [2024-01-29 23:00:20,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 367 transitions, 1021 flow [2024-01-29 23:00:20,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 367 transitions, 1015 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:20,070 INFO L231 Difference]: Finished difference. Result has 370 places, 367 transitions, 907 flow [2024-01-29 23:00:20,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=370, PETRI_TRANSITIONS=367} [2024-01-29 23:00:20,072 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -5 predicate places. [2024-01-29 23:00:20,072 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 367 transitions, 907 flow [2024-01-29 23:00:20,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:20,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:20,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:20,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 23:00:20,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:20,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 677953811, now seen corresponding path program 1 times [2024-01-29 23:00:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:20,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248810619] [2024-01-29 23:00:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:20,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:20,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:20,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248810619] [2024-01-29 23:00:20,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248810619] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:20,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:20,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 23:00:20,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665782529] [2024-01-29 23:00:20,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:20,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:20,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:20,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:20,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:20,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 381 [2024-01-29 23:00:20,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 367 transitions, 907 flow. Second operand has 4 states, 4 states have (on average 271.5) internal successors, (1086), 4 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:20,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:20,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 381 [2024-01-29 23:00:20,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:22,019 INFO L124 PetriNetUnfolderBase]: 3939/14229 cut-off events. [2024-01-29 23:00:22,019 INFO L125 PetriNetUnfolderBase]: For 11382/14982 co-relation queries the response was YES. [2024-01-29 23:00:22,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25699 conditions, 14229 events. 3939/14229 cut-off events. For 11382/14982 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 137587 event pairs, 2235 based on Foata normal form. 54/10896 useless extension candidates. Maximal degree in co-relation 25652. Up to 5045 conditions per place. [2024-01-29 23:00:22,145 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 122 selfloop transitions, 4 changer transitions 0/389 dead transitions. [2024-01-29 23:00:22,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 389 transitions, 1206 flow [2024-01-29 23:00:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:22,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1207 transitions. [2024-01-29 23:00:22,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.791994750656168 [2024-01-29 23:00:22,148 INFO L175 Difference]: Start difference. First operand has 370 places, 367 transitions, 907 flow. Second operand 4 states and 1207 transitions. [2024-01-29 23:00:22,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 389 transitions, 1206 flow [2024-01-29 23:00:22,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 389 transitions, 1202 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:22,173 INFO L231 Difference]: Finished difference. Result has 369 places, 365 transitions, 907 flow [2024-01-29 23:00:22,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=907, PETRI_PLACES=369, PETRI_TRANSITIONS=365} [2024-01-29 23:00:22,176 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -6 predicate places. [2024-01-29 23:00:22,176 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 365 transitions, 907 flow [2024-01-29 23:00:22,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 271.5) internal successors, (1086), 4 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:22,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:22,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:22,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 23:00:22,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:22,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash -458267606, now seen corresponding path program 1 times [2024-01-29 23:00:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:22,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367677428] [2024-01-29 23:00:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:22,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:22,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:22,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367677428] [2024-01-29 23:00:22,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367677428] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:22,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:22,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:22,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316481578] [2024-01-29 23:00:22,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:22,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:22,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:22,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 381 [2024-01-29 23:00:22,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 365 transitions, 907 flow. Second operand has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:22,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:22,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 381 [2024-01-29 23:00:22,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:23,442 INFO L124 PetriNetUnfolderBase]: 2701/11753 cut-off events. [2024-01-29 23:00:23,442 INFO L125 PetriNetUnfolderBase]: For 3303/4644 co-relation queries the response was YES. [2024-01-29 23:00:23,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19731 conditions, 11753 events. 2701/11753 cut-off events. For 3303/4644 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 114648 event pairs, 1947 based on Foata normal form. 32/8650 useless extension candidates. Maximal degree in co-relation 15345. Up to 2665 conditions per place. [2024-01-29 23:00:23,508 INFO L140 encePairwiseOnDemand]: 371/381 looper letters, 87 selfloop transitions, 7 changer transitions 0/381 dead transitions. [2024-01-29 23:00:23,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 381 transitions, 1134 flow [2024-01-29 23:00:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1285 transitions. [2024-01-29 23:00:23,511 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8431758530183727 [2024-01-29 23:00:23,511 INFO L175 Difference]: Start difference. First operand has 369 places, 365 transitions, 907 flow. Second operand 4 states and 1285 transitions. [2024-01-29 23:00:23,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 381 transitions, 1134 flow [2024-01-29 23:00:23,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 381 transitions, 1126 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:23,523 INFO L231 Difference]: Finished difference. Result has 369 places, 365 transitions, 935 flow [2024-01-29 23:00:23,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=935, PETRI_PLACES=369, PETRI_TRANSITIONS=365} [2024-01-29 23:00:23,527 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -6 predicate places. [2024-01-29 23:00:23,527 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 365 transitions, 935 flow [2024-01-29 23:00:23,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:23,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:23,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 23:00:23,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:23,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1321392949, now seen corresponding path program 1 times [2024-01-29 23:00:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:23,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588764524] [2024-01-29 23:00:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:23,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588764524] [2024-01-29 23:00:23,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588764524] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:23,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:23,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:23,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603568797] [2024-01-29 23:00:23,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:23,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:23,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:23,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:23,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 381 [2024-01-29 23:00:23,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 365 transitions, 935 flow. Second operand has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:23,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:23,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 381 [2024-01-29 23:00:23,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:24,989 INFO L124 PetriNetUnfolderBase]: 3100/13264 cut-off events. [2024-01-29 23:00:24,990 INFO L125 PetriNetUnfolderBase]: For 4135/5980 co-relation queries the response was YES. [2024-01-29 23:00:25,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22521 conditions, 13264 events. 3100/13264 cut-off events. For 4135/5980 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 130769 event pairs, 1713 based on Foata normal form. 12/10027 useless extension candidates. Maximal degree in co-relation 18165. Up to 2134 conditions per place. [2024-01-29 23:00:25,052 INFO L140 encePairwiseOnDemand]: 371/381 looper letters, 95 selfloop transitions, 10 changer transitions 0/381 dead transitions. [2024-01-29 23:00:25,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 381 transitions, 1190 flow [2024-01-29 23:00:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:25,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1238 transitions. [2024-01-29 23:00:25,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8123359580052494 [2024-01-29 23:00:25,058 INFO L175 Difference]: Start difference. First operand has 369 places, 365 transitions, 935 flow. Second operand 4 states and 1238 transitions. [2024-01-29 23:00:25,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 381 transitions, 1190 flow [2024-01-29 23:00:25,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 381 transitions, 1181 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:25,070 INFO L231 Difference]: Finished difference. Result has 369 places, 365 transitions, 968 flow [2024-01-29 23:00:25,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=968, PETRI_PLACES=369, PETRI_TRANSITIONS=365} [2024-01-29 23:00:25,071 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -6 predicate places. [2024-01-29 23:00:25,071 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 365 transitions, 968 flow [2024-01-29 23:00:25,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:25,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:25,072 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] [2024-01-29 23:00:25,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 23:00:25,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:25,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:25,072 INFO L85 PathProgramCache]: Analyzing trace with hash 834125984, now seen corresponding path program 1 times [2024-01-29 23:00:25,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:25,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316137598] [2024-01-29 23:00:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:25,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:25,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:25,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316137598] [2024-01-29 23:00:25,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316137598] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:25,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:25,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 23:00:25,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070228567] [2024-01-29 23:00:25,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:25,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 23:00:25,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 23:00:25,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 23:00:25,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 381 [2024-01-29 23:00:25,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 365 transitions, 968 flow. Second operand has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:25,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:25,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 381 [2024-01-29 23:00:25,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:26,110 INFO L124 PetriNetUnfolderBase]: 1876/8301 cut-off events. [2024-01-29 23:00:26,111 INFO L125 PetriNetUnfolderBase]: For 3954/5486 co-relation queries the response was YES. [2024-01-29 23:00:26,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14469 conditions, 8301 events. 1876/8301 cut-off events. For 3954/5486 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 76539 event pairs, 1093 based on Foata normal form. 50/6010 useless extension candidates. Maximal degree in co-relation 12796. Up to 1258 conditions per place. [2024-01-29 23:00:26,168 INFO L140 encePairwiseOnDemand]: 373/381 looper letters, 75 selfloop transitions, 4 changer transitions 0/373 dead transitions. [2024-01-29 23:00:26,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 373 transitions, 1112 flow [2024-01-29 23:00:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 23:00:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 23:00:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2024-01-29 23:00:26,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8941382327209099 [2024-01-29 23:00:26,171 INFO L175 Difference]: Start difference. First operand has 369 places, 365 transitions, 968 flow. Second operand 3 states and 1022 transitions. [2024-01-29 23:00:26,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 373 transitions, 1112 flow [2024-01-29 23:00:26,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 373 transitions, 1096 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:26,183 INFO L231 Difference]: Finished difference. Result has 364 places, 357 transitions, 911 flow [2024-01-29 23:00:26,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=364, PETRI_TRANSITIONS=357} [2024-01-29 23:00:26,184 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -11 predicate places. [2024-01-29 23:00:26,184 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 357 transitions, 911 flow [2024-01-29 23:00:26,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:26,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:26,185 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] [2024-01-29 23:00:26,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 23:00:26,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:26,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:26,186 INFO L85 PathProgramCache]: Analyzing trace with hash 88102530, now seen corresponding path program 1 times [2024-01-29 23:00:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150200545] [2024-01-29 23:00:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:26,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:26,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:26,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150200545] [2024-01-29 23:00:26,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150200545] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:26,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:26,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:26,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147263294] [2024-01-29 23:00:26,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:26,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:26,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:26,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 381 [2024-01-29 23:00:26,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 357 transitions, 911 flow. Second operand has 4 states, 4 states have (on average 284.5) internal successors, (1138), 4 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:26,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:26,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 381 [2024-01-29 23:00:26,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:27,838 INFO L124 PetriNetUnfolderBase]: 2879/11698 cut-off events. [2024-01-29 23:00:27,839 INFO L125 PetriNetUnfolderBase]: For 4107/5023 co-relation queries the response was YES. [2024-01-29 23:00:27,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20149 conditions, 11698 events. 2879/11698 cut-off events. For 4107/5023 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 110045 event pairs, 1767 based on Foata normal form. 0/8987 useless extension candidates. Maximal degree in co-relation 18366. Up to 2224 conditions per place. [2024-01-29 23:00:27,922 INFO L140 encePairwiseOnDemand]: 370/381 looper letters, 123 selfloop transitions, 9 changer transitions 0/390 dead transitions. [2024-01-29 23:00:27,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 390 transitions, 1259 flow [2024-01-29 23:00:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1251 transitions. [2024-01-29 23:00:27,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8208661417322834 [2024-01-29 23:00:27,925 INFO L175 Difference]: Start difference. First operand has 364 places, 357 transitions, 911 flow. Second operand 4 states and 1251 transitions. [2024-01-29 23:00:27,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 390 transitions, 1259 flow [2024-01-29 23:00:27,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 390 transitions, 1251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:27,941 INFO L231 Difference]: Finished difference. Result has 362 places, 354 transitions, 915 flow [2024-01-29 23:00:27,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=915, PETRI_PLACES=362, PETRI_TRANSITIONS=354} [2024-01-29 23:00:27,942 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -13 predicate places. [2024-01-29 23:00:27,942 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 354 transitions, 915 flow [2024-01-29 23:00:27,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 284.5) internal successors, (1138), 4 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:27,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:27,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:27,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 23:00:27,943 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:27,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1563788002, now seen corresponding path program 1 times [2024-01-29 23:00:27,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:27,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246078977] [2024-01-29 23:00:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:27,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:28,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:28,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246078977] [2024-01-29 23:00:28,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246078977] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:28,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697964087] [2024-01-29 23:00:28,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:28,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:00:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:00:28,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:00:28,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 381 [2024-01-29 23:00:28,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 354 transitions, 915 flow. Second operand has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:28,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:28,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 381 [2024-01-29 23:00:28,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:30,703 INFO L124 PetriNetUnfolderBase]: 7049/19557 cut-off events. [2024-01-29 23:00:30,704 INFO L125 PetriNetUnfolderBase]: For 12525/13099 co-relation queries the response was YES. [2024-01-29 23:00:30,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39665 conditions, 19557 events. 7049/19557 cut-off events. For 12525/13099 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 182998 event pairs, 4038 based on Foata normal form. 190/16868 useless extension candidates. Maximal degree in co-relation 37969. Up to 10597 conditions per place. [2024-01-29 23:00:30,798 INFO L140 encePairwiseOnDemand]: 362/381 looper letters, 194 selfloop transitions, 3 changer transitions 0/385 dead transitions. [2024-01-29 23:00:30,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 385 transitions, 1382 flow [2024-01-29 23:00:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1048 transitions. [2024-01-29 23:00:30,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6876640419947506 [2024-01-29 23:00:30,803 INFO L175 Difference]: Start difference. First operand has 362 places, 354 transitions, 915 flow. Second operand 4 states and 1048 transitions. [2024-01-29 23:00:30,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 385 transitions, 1382 flow [2024-01-29 23:00:30,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 385 transitions, 1364 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:30,832 INFO L231 Difference]: Finished difference. Result has 361 places, 352 transitions, 929 flow [2024-01-29 23:00:30,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=929, PETRI_PLACES=361, PETRI_TRANSITIONS=352} [2024-01-29 23:00:30,833 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -14 predicate places. [2024-01-29 23:00:30,833 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 352 transitions, 929 flow [2024-01-29 23:00:30,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:30,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:30,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:30,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 23:00:30,836 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:30,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 310727094, now seen corresponding path program 1 times [2024-01-29 23:00:30,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:30,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530787966] [2024-01-29 23:00:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530787966] [2024-01-29 23:00:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530787966] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372225961] [2024-01-29 23:00:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:30,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:30,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 381 [2024-01-29 23:00:30,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 352 transitions, 929 flow. Second operand has 4 states, 4 states have (on average 329.75) internal successors, (1319), 4 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:30,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:30,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 381 [2024-01-29 23:00:30,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:31,685 INFO L124 PetriNetUnfolderBase]: 1826/8250 cut-off events. [2024-01-29 23:00:31,685 INFO L125 PetriNetUnfolderBase]: For 3773/5721 co-relation queries the response was YES. [2024-01-29 23:00:31,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14527 conditions, 8250 events. 1826/8250 cut-off events. For 3773/5721 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 75129 event pairs, 1008 based on Foata normal form. 140/6177 useless extension candidates. Maximal degree in co-relation 13915. Up to 1901 conditions per place. [2024-01-29 23:00:31,748 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 55 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2024-01-29 23:00:31,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 358 transitions, 1057 flow [2024-01-29 23:00:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1366 transitions. [2024-01-29 23:00:31,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8963254593175853 [2024-01-29 23:00:31,751 INFO L175 Difference]: Start difference. First operand has 361 places, 352 transitions, 929 flow. Second operand 4 states and 1366 transitions. [2024-01-29 23:00:31,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 358 transitions, 1057 flow [2024-01-29 23:00:31,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 358 transitions, 1051 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:31,765 INFO L231 Difference]: Finished difference. Result has 358 places, 349 transitions, 921 flow [2024-01-29 23:00:31,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=921, PETRI_PLACES=358, PETRI_TRANSITIONS=349} [2024-01-29 23:00:31,766 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -17 predicate places. [2024-01-29 23:00:31,766 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 349 transitions, 921 flow [2024-01-29 23:00:31,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 329.75) internal successors, (1319), 4 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:31,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:31,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:31,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 23:00:31,767 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:31,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2038938951, now seen corresponding path program 1 times [2024-01-29 23:00:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218647857] [2024-01-29 23:00:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:31,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:31,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218647857] [2024-01-29 23:00:31,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218647857] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:31,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:31,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:31,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882062560] [2024-01-29 23:00:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:31,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:31,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 381 [2024-01-29 23:00:31,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 349 transitions, 921 flow. Second operand has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:31,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:31,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 381 [2024-01-29 23:00:31,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:33,144 INFO L124 PetriNetUnfolderBase]: 3184/12141 cut-off events. [2024-01-29 23:00:33,144 INFO L125 PetriNetUnfolderBase]: For 4940/7251 co-relation queries the response was YES. [2024-01-29 23:00:33,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22180 conditions, 12141 events. 3184/12141 cut-off events. For 4940/7251 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 115351 event pairs, 1882 based on Foata normal form. 17/9519 useless extension candidates. Maximal degree in co-relation 19229. Up to 2547 conditions per place. [2024-01-29 23:00:33,224 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 110 selfloop transitions, 3 changer transitions 0/400 dead transitions. [2024-01-29 23:00:33,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 400 transitions, 1279 flow [2024-01-29 23:00:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:33,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1365 transitions. [2024-01-29 23:00:33,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8956692913385826 [2024-01-29 23:00:33,229 INFO L175 Difference]: Start difference. First operand has 358 places, 349 transitions, 921 flow. Second operand 4 states and 1365 transitions. [2024-01-29 23:00:33,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 400 transitions, 1279 flow [2024-01-29 23:00:33,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 400 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:33,255 INFO L231 Difference]: Finished difference. Result has 360 places, 350 transitions, 934 flow [2024-01-29 23:00:33,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=934, PETRI_PLACES=360, PETRI_TRANSITIONS=350} [2024-01-29 23:00:33,256 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -15 predicate places. [2024-01-29 23:00:33,256 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 350 transitions, 934 flow [2024-01-29 23:00:33,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:33,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:33,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:33,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 23:00:33,257 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:33,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:33,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2047651480, now seen corresponding path program 1 times [2024-01-29 23:00:33,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:33,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6229793] [2024-01-29 23:00:33,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:33,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:33,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:33,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6229793] [2024-01-29 23:00:33,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6229793] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:33,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:33,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:33,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454253241] [2024-01-29 23:00:33,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:33,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:33,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:33,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:33,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:33,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 381 [2024-01-29 23:00:33,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 350 transitions, 934 flow. Second operand has 4 states, 4 states have (on average 330.25) internal successors, (1321), 4 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:33,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:33,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 381 [2024-01-29 23:00:33,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:34,293 INFO L124 PetriNetUnfolderBase]: 2127/9211 cut-off events. [2024-01-29 23:00:34,293 INFO L125 PetriNetUnfolderBase]: For 4852/7089 co-relation queries the response was YES. [2024-01-29 23:00:34,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17309 conditions, 9211 events. 2127/9211 cut-off events. For 4852/7089 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 86903 event pairs, 852 based on Foata normal form. 249/7019 useless extension candidates. Maximal degree in co-relation 16805. Up to 1849 conditions per place. [2024-01-29 23:00:34,351 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 86 selfloop transitions, 2 changer transitions 0/386 dead transitions. [2024-01-29 23:00:34,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 386 transitions, 1231 flow [2024-01-29 23:00:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1394 transitions. [2024-01-29 23:00:34,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9146981627296588 [2024-01-29 23:00:34,354 INFO L175 Difference]: Start difference. First operand has 360 places, 350 transitions, 934 flow. Second operand 4 states and 1394 transitions. [2024-01-29 23:00:34,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 386 transitions, 1231 flow [2024-01-29 23:00:34,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 386 transitions, 1221 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:34,370 INFO L231 Difference]: Finished difference. Result has 358 places, 347 transitions, 928 flow [2024-01-29 23:00:34,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=928, PETRI_PLACES=358, PETRI_TRANSITIONS=347} [2024-01-29 23:00:34,371 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -17 predicate places. [2024-01-29 23:00:34,371 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 347 transitions, 928 flow [2024-01-29 23:00:34,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 330.25) internal successors, (1321), 4 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:34,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:34,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:34,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 23:00:34,373 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:34,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:34,373 INFO L85 PathProgramCache]: Analyzing trace with hash -698010517, now seen corresponding path program 1 times [2024-01-29 23:00:34,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:34,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850117613] [2024-01-29 23:00:34,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:34,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:34,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850117613] [2024-01-29 23:00:34,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850117613] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:34,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:34,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368116965] [2024-01-29 23:00:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:34,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:34,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:34,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 381 [2024-01-29 23:00:34,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 347 transitions, 928 flow. Second operand has 4 states, 4 states have (on average 314.5) internal successors, (1258), 4 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:34,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:34,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 381 [2024-01-29 23:00:34,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:36,704 INFO L124 PetriNetUnfolderBase]: 5711/22270 cut-off events. [2024-01-29 23:00:36,704 INFO L125 PetriNetUnfolderBase]: For 8680/11880 co-relation queries the response was YES. [2024-01-29 23:00:36,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41131 conditions, 22270 events. 5711/22270 cut-off events. For 8680/11880 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 238172 event pairs, 4099 based on Foata normal form. 94/17683 useless extension candidates. Maximal degree in co-relation 40649. Up to 5090 conditions per place. [2024-01-29 23:00:36,919 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 130 selfloop transitions, 3 changer transitions 0/415 dead transitions. [2024-01-29 23:00:36,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 415 transitions, 1391 flow [2024-01-29 23:00:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:36,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1372 transitions. [2024-01-29 23:00:36,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9002624671916011 [2024-01-29 23:00:36,922 INFO L175 Difference]: Start difference. First operand has 358 places, 347 transitions, 928 flow. Second operand 4 states and 1372 transitions. [2024-01-29 23:00:36,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 415 transitions, 1391 flow [2024-01-29 23:00:36,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 415 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:36,946 INFO L231 Difference]: Finished difference. Result has 360 places, 348 transitions, 941 flow [2024-01-29 23:00:36,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=941, PETRI_PLACES=360, PETRI_TRANSITIONS=348} [2024-01-29 23:00:36,946 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -15 predicate places. [2024-01-29 23:00:36,947 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 348 transitions, 941 flow [2024-01-29 23:00:36,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.5) internal successors, (1258), 4 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:36,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:36,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:36,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-29 23:00:36,947 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:36,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:36,948 INFO L85 PathProgramCache]: Analyzing trace with hash 951255230, now seen corresponding path program 1 times [2024-01-29 23:00:36,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:36,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394938706] [2024-01-29 23:00:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:36,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:37,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:37,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394938706] [2024-01-29 23:00:37,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394938706] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:37,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:37,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 23:00:37,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028379503] [2024-01-29 23:00:37,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:37,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:37,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 381 [2024-01-29 23:00:37,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 348 transitions, 941 flow. Second operand has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:37,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:37,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 381 [2024-01-29 23:00:37,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:40,721 INFO L124 PetriNetUnfolderBase]: 11550/34506 cut-off events. [2024-01-29 23:00:40,721 INFO L125 PetriNetUnfolderBase]: For 30277/36630 co-relation queries the response was YES. [2024-01-29 23:00:40,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70711 conditions, 34506 events. 11550/34506 cut-off events. For 30277/36630 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 379892 event pairs, 6163 based on Foata normal form. 87/28210 useless extension candidates. Maximal degree in co-relation 70419. Up to 17279 conditions per place. [2024-01-29 23:00:41,004 INFO L140 encePairwiseOnDemand]: 374/381 looper letters, 148 selfloop transitions, 3 changer transitions 0/383 dead transitions. [2024-01-29 23:00:41,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 383 transitions, 1337 flow [2024-01-29 23:00:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1194 transitions. [2024-01-29 23:00:41,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7834645669291339 [2024-01-29 23:00:41,011 INFO L175 Difference]: Start difference. First operand has 360 places, 348 transitions, 941 flow. Second operand 4 states and 1194 transitions. [2024-01-29 23:00:41,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 383 transitions, 1337 flow [2024-01-29 23:00:41,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 383 transitions, 1327 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:41,093 INFO L231 Difference]: Finished difference. Result has 362 places, 348 transitions, 953 flow [2024-01-29 23:00:41,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=953, PETRI_PLACES=362, PETRI_TRANSITIONS=348} [2024-01-29 23:00:41,094 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -13 predicate places. [2024-01-29 23:00:41,096 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 348 transitions, 953 flow [2024-01-29 23:00:41,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 266.0) internal successors, (1064), 4 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:41,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:41,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-29 23:00:41,097 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:41,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash -575857851, now seen corresponding path program 1 times [2024-01-29 23:00:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:41,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057168794] [2024-01-29 23:00:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:41,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:41,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057168794] [2024-01-29 23:00:41,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057168794] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:41,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:41,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:41,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131939239] [2024-01-29 23:00:41,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:41,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:00:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:00:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:00:41,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 381 [2024-01-29 23:00:41,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 348 transitions, 953 flow. Second operand has 5 states, 5 states have (on average 239.2) internal successors, (1196), 5 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:41,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 381 [2024-01-29 23:00:41,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:45,558 INFO L124 PetriNetUnfolderBase]: 10232/32949 cut-off events. [2024-01-29 23:00:45,558 INFO L125 PetriNetUnfolderBase]: For 40900/47455 co-relation queries the response was YES. [2024-01-29 23:00:45,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64346 conditions, 32949 events. 10232/32949 cut-off events. For 40900/47455 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 331143 event pairs, 5066 based on Foata normal form. 3669/32191 useless extension candidates. Maximal degree in co-relation 63542. Up to 9332 conditions per place. [2024-01-29 23:00:45,824 INFO L140 encePairwiseOnDemand]: 323/381 looper letters, 253 selfloop transitions, 7 changer transitions 0/464 dead transitions. [2024-01-29 23:00:45,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 464 transitions, 1799 flow [2024-01-29 23:00:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 23:00:45,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 23:00:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1483 transitions. [2024-01-29 23:00:46,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7784776902887139 [2024-01-29 23:00:46,244 INFO L175 Difference]: Start difference. First operand has 362 places, 348 transitions, 953 flow. Second operand 5 states and 1483 transitions. [2024-01-29 23:00:46,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 464 transitions, 1799 flow [2024-01-29 23:00:46,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 464 transitions, 1793 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:00:46,325 INFO L231 Difference]: Finished difference. Result has 366 places, 352 transitions, 1137 flow [2024-01-29 23:00:46,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1137, PETRI_PLACES=366, PETRI_TRANSITIONS=352} [2024-01-29 23:00:46,326 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -9 predicate places. [2024-01-29 23:00:46,326 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 352 transitions, 1137 flow [2024-01-29 23:00:46,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.2) internal successors, (1196), 5 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:46,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:46,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:46,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-29 23:00:46,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:46,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash 455769223, now seen corresponding path program 1 times [2024-01-29 23:00:46,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:46,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895934476] [2024-01-29 23:00:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:46,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:46,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895934476] [2024-01-29 23:00:46,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895934476] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:46,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:46,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:46,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144730882] [2024-01-29 23:00:46,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:46,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:00:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:46,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:00:46,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:00:47,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 381 [2024-01-29 23:00:47,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 352 transitions, 1137 flow. Second operand has 5 states, 5 states have (on average 257.4) internal successors, (1287), 5 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:47,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:47,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 381 [2024-01-29 23:00:47,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:52,540 INFO L124 PetriNetUnfolderBase]: 12070/36780 cut-off events. [2024-01-29 23:00:52,541 INFO L125 PetriNetUnfolderBase]: For 48609/54752 co-relation queries the response was YES. [2024-01-29 23:00:52,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79980 conditions, 36780 events. 12070/36780 cut-off events. For 48609/54752 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 364612 event pairs, 6543 based on Foata normal form. 81/31622 useless extension candidates. Maximal degree in co-relation 79066. Up to 17798 conditions per place. [2024-01-29 23:00:52,812 INFO L140 encePairwiseOnDemand]: 372/381 looper letters, 188 selfloop transitions, 7 changer transitions 0/419 dead transitions. [2024-01-29 23:00:52,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 419 transitions, 1692 flow [2024-01-29 23:00:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 23:00:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 23:00:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1457 transitions. [2024-01-29 23:00:52,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7648293963254593 [2024-01-29 23:00:52,815 INFO L175 Difference]: Start difference. First operand has 366 places, 352 transitions, 1137 flow. Second operand 5 states and 1457 transitions. [2024-01-29 23:00:52,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 419 transitions, 1692 flow [2024-01-29 23:00:52,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 419 transitions, 1690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 23:00:52,889 INFO L231 Difference]: Finished difference. Result has 372 places, 357 transitions, 1196 flow [2024-01-29 23:00:52,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=1135, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1196, PETRI_PLACES=372, PETRI_TRANSITIONS=357} [2024-01-29 23:00:52,890 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, -3 predicate places. [2024-01-29 23:00:52,890 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 357 transitions, 1196 flow [2024-01-29 23:00:52,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 257.4) internal successors, (1287), 5 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:52,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:52,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:52,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-29 23:00:52,891 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:00:52,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1243945298, now seen corresponding path program 1 times [2024-01-29 23:00:52,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:52,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852978472] [2024-01-29 23:00:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:52,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:52,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852978472] [2024-01-29 23:00:52,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852978472] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:52,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:52,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600116013] [2024-01-29 23:00:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:52,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:00:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:00:52,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:00:53,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 381 [2024-01-29 23:00:53,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 357 transitions, 1196 flow. Second operand has 5 states, 5 states have (on average 221.4) internal successors, (1107), 5 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:53,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:53,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 381 [2024-01-29 23:00:53,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:01:00,548 INFO L124 PetriNetUnfolderBase]: 16402/47082 cut-off events. [2024-01-29 23:01:00,548 INFO L125 PetriNetUnfolderBase]: For 58195/62880 co-relation queries the response was YES. [2024-01-29 23:01:00,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103094 conditions, 47082 events. 16402/47082 cut-off events. For 58195/62880 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 462374 event pairs, 8147 based on Foata normal form. 129/41886 useless extension candidates. Maximal degree in co-relation 102184. Up to 24449 conditions per place. [2024-01-29 23:01:00,955 INFO L140 encePairwiseOnDemand]: 374/381 looper letters, 217 selfloop transitions, 7 changer transitions 0/412 dead transitions. [2024-01-29 23:01:00,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 412 transitions, 1772 flow [2024-01-29 23:01:00,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 23:01:00,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 23:01:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1290 transitions. [2024-01-29 23:01:00,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6771653543307087 [2024-01-29 23:01:00,959 INFO L175 Difference]: Start difference. First operand has 372 places, 357 transitions, 1196 flow. Second operand 5 states and 1290 transitions. [2024-01-29 23:01:00,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 412 transitions, 1772 flow [2024-01-29 23:01:01,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 412 transitions, 1767 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 23:01:01,234 INFO L231 Difference]: Finished difference. Result has 376 places, 358 transitions, 1223 flow [2024-01-29 23:01:01,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1223, PETRI_PLACES=376, PETRI_TRANSITIONS=358} [2024-01-29 23:01:01,235 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, 1 predicate places. [2024-01-29 23:01:01,235 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 358 transitions, 1223 flow [2024-01-29 23:01:01,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 221.4) internal successors, (1107), 5 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:01,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:01:01,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:01:01,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-01-29 23:01:01,236 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t2Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:01:01,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:01:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1430563892, now seen corresponding path program 1 times [2024-01-29 23:01:01,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:01:01,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218935874] [2024-01-29 23:01:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:01:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:01:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:01:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:01:01,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:01:01,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218935874] [2024-01-29 23:01:01,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218935874] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:01:01,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:01:01,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:01:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517187813] [2024-01-29 23:01:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:01:01,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 23:01:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:01:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 23:01:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 23:01:01,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 381 [2024-01-29 23:01:01,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 358 transitions, 1223 flow. Second operand has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:01,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:01:01,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 381 [2024-01-29 23:01:01,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:01:07,564 INFO L124 PetriNetUnfolderBase]: 14324/40010 cut-off events. [2024-01-29 23:01:07,564 INFO L125 PetriNetUnfolderBase]: For 50542/56401 co-relation queries the response was YES. [2024-01-29 23:01:07,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91622 conditions, 40010 events. 14324/40010 cut-off events. For 50542/56401 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 390637 event pairs, 7387 based on Foata normal form. 61/35268 useless extension candidates. Maximal degree in co-relation 90709. Up to 22238 conditions per place. [2024-01-29 23:01:07,879 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 187 selfloop transitions, 6 changer transitions 0/396 dead transitions. [2024-01-29 23:01:07,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 396 transitions, 1704 flow [2024-01-29 23:01:07,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:01:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:01:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1118 transitions. [2024-01-29 23:01:07,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7335958005249343 [2024-01-29 23:01:07,881 INFO L175 Difference]: Start difference. First operand has 376 places, 358 transitions, 1223 flow. Second operand 4 states and 1118 transitions. [2024-01-29 23:01:07,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 396 transitions, 1704 flow [2024-01-29 23:01:08,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 396 transitions, 1697 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:01:08,008 INFO L231 Difference]: Finished difference. Result has 378 places, 358 transitions, 1233 flow [2024-01-29 23:01:08,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1233, PETRI_PLACES=378, PETRI_TRANSITIONS=358} [2024-01-29 23:01:08,008 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, 3 predicate places. [2024-01-29 23:01:08,008 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 358 transitions, 1233 flow [2024-01-29 23:01:08,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:08,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:01:08,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:01:08,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-01-29 23:01:08,009 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:01:08,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:01:08,009 INFO L85 PathProgramCache]: Analyzing trace with hash -853939336, now seen corresponding path program 1 times [2024-01-29 23:01:08,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:01:08,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395177058] [2024-01-29 23:01:08,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:01:08,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:01:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:01:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:01:08,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:01:08,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395177058] [2024-01-29 23:01:08,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395177058] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:01:08,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:01:08,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 23:01:08,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825608768] [2024-01-29 23:01:08,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:01:08,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 23:01:08,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:01:08,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 23:01:08,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-01-29 23:01:09,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 381 [2024-01-29 23:01:09,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 358 transitions, 1233 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:09,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:01:09,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 381 [2024-01-29 23:01:09,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:01:14,283 INFO L124 PetriNetUnfolderBase]: 11266/33732 cut-off events. [2024-01-29 23:01:14,283 INFO L125 PetriNetUnfolderBase]: For 58037/62519 co-relation queries the response was YES. [2024-01-29 23:01:14,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77704 conditions, 33732 events. 11266/33732 cut-off events. For 58037/62519 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 333527 event pairs, 5786 based on Foata normal form. 295/30958 useless extension candidates. Maximal degree in co-relation 76912. Up to 10339 conditions per place. [2024-01-29 23:01:14,577 INFO L140 encePairwiseOnDemand]: 354/381 looper letters, 305 selfloop transitions, 9 changer transitions 0/500 dead transitions. [2024-01-29 23:01:14,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 500 transitions, 2268 flow [2024-01-29 23:01:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 23:01:14,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 23:01:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1604 transitions. [2024-01-29 23:01:14,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7016622922134733 [2024-01-29 23:01:14,580 INFO L175 Difference]: Start difference. First operand has 378 places, 358 transitions, 1233 flow. Second operand 6 states and 1604 transitions. [2024-01-29 23:01:14,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 500 transitions, 2268 flow [2024-01-29 23:01:14,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 500 transitions, 2256 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 23:01:14,655 INFO L231 Difference]: Finished difference. Result has 382 places, 360 transitions, 1291 flow [2024-01-29 23:01:14,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1291, PETRI_PLACES=382, PETRI_TRANSITIONS=360} [2024-01-29 23:01:14,655 INFO L281 CegarLoopForPetriNet]: 375 programPoint places, 7 predicate places. [2024-01-29 23:01:14,656 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 360 transitions, 1291 flow [2024-01-29 23:01:14,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:14,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:01:14,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:01:14,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-01-29 23:01:14,657 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err18ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 314 more)] === [2024-01-29 23:01:14,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:01:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash -614342378, now seen corresponding path program 1 times [2024-01-29 23:01:14,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:01:14,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217360869] [2024-01-29 23:01:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:01:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:01:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:01:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:01:14,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:01:14,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217360869] [2024-01-29 23:01:14,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217360869] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:01:14,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:01:14,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 23:01:14,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691067502] [2024-01-29 23:01:14,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:01:14,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 23:01:14,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:01:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 23:01:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-01-29 23:01:15,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 381 [2024-01-29 23:01:15,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 360 transitions, 1291 flow. Second operand has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:01:15,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:01:15,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 381 [2024-01-29 23:01:15,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand