./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix040_tso.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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-wmm/mix040_tso.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix040_tso.oepc.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 22:23:45,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:23:45,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:23:45,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:23:45,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:23:45,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:23:45,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:23:45,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:23:45,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:23:45,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:23:45,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:23:45,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:23:45,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:23:45,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:23:45,669 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:23:45,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:23:45,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:23:45,670 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:23:45,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:23:45,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:23:45,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:23:45,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:23:45,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:23:45,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:23:45,671 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:23:45,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:23:45,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:23:45,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:23:45,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:23:45,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:23:45,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:23:45,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:23:45,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:23:45,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:23:45,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:23:45,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:23:45,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:23:45,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:23:45,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:23:45,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:23:45,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:23:45,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:23:45,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:23:45,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:23:45,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:23:45,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:23:45,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:23:45,879 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:23:45,879 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:23:45,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix040_tso.oepc.yml/witness.yml [2024-06-27 22:23:45,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:23:45,967 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:23:45,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2024-06-27 22:23:46,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:23:47,144 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:23:47,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2024-06-27 22:23:47,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bb56ef6/a715d805af1f45478d96c973d942d33d/FLAG400f21f34 [2024-06-27 22:23:47,171 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bb56ef6/a715d805af1f45478d96c973d942d33d [2024-06-27 22:23:47,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:23:47,173 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:23:47,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:23:47,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:23:47,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:23:47,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:23:45" (1/2) ... [2024-06-27 22:23:47,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0eeb6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:23:47, skipping insertion in model container [2024-06-27 22:23:47,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:23:45" (1/2) ... [2024-06-27 22:23:47,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7bcbeb95 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:23:47, skipping insertion in model container [2024-06-27 22:23:47,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:23:47" (2/2) ... [2024-06-27 22:23:47,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0eeb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47, skipping insertion in model container [2024-06-27 22:23:47,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:23:47" (2/2) ... [2024-06-27 22:23:47,182 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:23:47,203 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:23:47,204 INFO L97 edCorrectnessWitness]: Location invariant before [L854-L854] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 22:23:47,204 INFO L97 edCorrectnessWitness]: Location invariant before [L858-L858] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 22:23:47,204 INFO L97 edCorrectnessWitness]: Location invariant before [L856-L856] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 22:23:47,204 INFO L97 edCorrectnessWitness]: Location invariant before [L859-L859] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (long long )z >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )y$r_buff0_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd3) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p3_EAX) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )y$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff0_used >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$r_buff1_thd3 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff0_used - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 22:23:47,205 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:23:47,205 INFO L106 edCorrectnessWitness]: ghost_update [L852-L852] multithreaded = 1; [2024-06-27 22:23:47,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:23:47,425 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i[949,962] [2024-06-27 22:23:47,602 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:23:47,611 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:23:47,639 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i[949,962] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:23:47,775 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:23:47,813 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:23:47,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47 WrapperNode [2024-06-27 22:23:47,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:23:47,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:23:47,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:23:47,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:23:47,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,885 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2024-06-27 22:23:47,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:23:47,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:23:47,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:23:47,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:23:47,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,910 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,926 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 22:23:47,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:23:47,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:23:47,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:23:47,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:23:47,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (1/1) ... [2024-06-27 22:23:47,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:23:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:23:47,989 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) [2024-06-27 22:23:48,006 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 [2024-06-27 22:23:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:23:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:23:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:23:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:23:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:23:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:23:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:23:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:23:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:23:48,020 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 22:23:48,117 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:23:48,118 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:23:48,577 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:23:48,577 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:23:48,747 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:23:48,747 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:23:48,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:23:48 BoogieIcfgContainer [2024-06-27 22:23:48,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:23:48,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:23:48,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:23:48,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:23:48,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:23:45" (1/4) ... [2024-06-27 22:23:48,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2891b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:23:48, skipping insertion in model container [2024-06-27 22:23:48,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:23:47" (2/4) ... [2024-06-27 22:23:48,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2891b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:23:48, skipping insertion in model container [2024-06-27 22:23:48,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:23:47" (3/4) ... [2024-06-27 22:23:48,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2891b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:23:48, skipping insertion in model container [2024-06-27 22:23:48,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:23:48" (4/4) ... [2024-06-27 22:23:48,758 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2024-06-27 22:23:48,771 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:23:48,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:23:48,771 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:23:48,818 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:23:48,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:23:48,876 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 22:23:48,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:23:48,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-06-27 22:23:48,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:23:48,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 22:23:48,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:23:48,902 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;@3bfb48cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:23:48,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:23:48,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:23:48,907 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 22:23:48,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:23:48,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:23:48,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:23:48,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:23:48,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:23:48,913 INFO L85 PathProgramCache]: Analyzing trace with hash 373697199, now seen corresponding path program 1 times [2024-06-27 22:23:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:23:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032238855] [2024-06-27 22:23:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:23:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:23:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:23:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:23:50,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:23:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032238855] [2024-06-27 22:23:50,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032238855] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:23:50,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:23:50,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:23:50,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851051] [2024-06-27 22:23:50,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:23:50,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:23:50,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:23:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:23:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:23:50,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 22:23:50,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-06-27 22:23:50,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:23:50,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 22:23:50,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:23:54,106 INFO L124 PetriNetUnfolderBase]: 29368/43332 cut-off events. [2024-06-27 22:23:54,106 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-06-27 22:23:54,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82621 conditions, 43332 events. 29368/43332 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 1581. Compared 310645 event pairs, 25441 based on Foata normal form. 1080/41211 useless extension candidates. Maximal degree in co-relation 82608. Up to 38837 conditions per place. [2024-06-27 22:23:54,386 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 54 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-06-27 22:23:54,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 285 flow [2024-06-27 22:23:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:23:54,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:23:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-06-27 22:23:54,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2024-06-27 22:23:54,397 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 120 transitions. [2024-06-27 22:23:54,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 285 flow [2024-06-27 22:23:54,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 278 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:23:54,407 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 157 flow [2024-06-27 22:23:54,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-06-27 22:23:54,413 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 22:23:54,414 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 157 flow [2024-06-27 22:23:54,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-06-27 22:23:54,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:23:54,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:23:54,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:23:54,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:23:54,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:23:54,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1654223410, now seen corresponding path program 1 times [2024-06-27 22:23:54,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:23:54,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734984478] [2024-06-27 22:23:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:23:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:23:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:23:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:23:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:23:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734984478] [2024-06-27 22:23:55,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734984478] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:23:55,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:23:55,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:23:55,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143360687] [2024-06-27 22:23:55,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:23:55,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:23:55,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:23:55,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:23:55,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:23:55,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:23:55,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 22:23:55,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:23:55,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:23:55,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:23:59,263 INFO L124 PetriNetUnfolderBase]: 34127/49347 cut-off events. [2024-06-27 22:23:59,264 INFO L125 PetriNetUnfolderBase]: For 7285/7285 co-relation queries the response was YES. [2024-06-27 22:23:59,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105281 conditions, 49347 events. 34127/49347 cut-off events. For 7285/7285 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 343720 event pairs, 27120 based on Foata normal form. 4/46134 useless extension candidates. Maximal degree in co-relation 105269. Up to 44989 conditions per place. [2024-06-27 22:23:59,506 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 70 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2024-06-27 22:23:59,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 401 flow [2024-06-27 22:23:59,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:23:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:23:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-06-27 22:23:59,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2024-06-27 22:23:59,514 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 157 flow. Second operand 4 states and 152 transitions. [2024-06-27 22:23:59,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 401 flow [2024-06-27 22:23:59,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:23:59,518 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 207 flow [2024-06-27 22:23:59,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2024-06-27 22:23:59,519 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 22:23:59,521 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 207 flow [2024-06-27 22:23:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 22:23:59,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:23:59,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:23:59,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:23:59,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:23:59,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:23:59,527 INFO L85 PathProgramCache]: Analyzing trace with hash 258682566, now seen corresponding path program 1 times [2024-06-27 22:23:59,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:23:59,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596221333] [2024-06-27 22:23:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:23:59,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:23:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:24:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:24:00,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:24:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596221333] [2024-06-27 22:24:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596221333] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:24:00,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:24:00,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:24:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389610460] [2024-06-27 22:24:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:24:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:24:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:24:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:24:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:24:00,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:24:00,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-06-27 22:24:00,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:24:00,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:24:00,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:24:04,497 INFO L124 PetriNetUnfolderBase]: 33993/49214 cut-off events. [2024-06-27 22:24:04,497 INFO L125 PetriNetUnfolderBase]: For 20260/20260 co-relation queries the response was YES. [2024-06-27 22:24:04,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115207 conditions, 49214 events. 33993/49214 cut-off events. For 20260/20260 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 342866 event pairs, 23041 based on Foata normal form. 7/46087 useless extension candidates. Maximal degree in co-relation 115193. Up to 44660 conditions per place. [2024-06-27 22:24:04,774 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 93 selfloop transitions, 21 changer transitions 0/127 dead transitions. [2024-06-27 22:24:04,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 127 transitions, 639 flow [2024-06-27 22:24:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:24:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:24:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 200 transitions. [2024-06-27 22:24:04,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2024-06-27 22:24:04,776 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 207 flow. Second operand 5 states and 200 transitions. [2024-06-27 22:24:04,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 127 transitions, 639 flow [2024-06-27 22:24:04,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 127 transitions, 620 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:24:04,782 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 344 flow [2024-06-27 22:24:04,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=76} [2024-06-27 22:24:04,783 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-27 22:24:04,783 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 344 flow [2024-06-27 22:24:04,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-06-27 22:24:04,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:24:04,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:24:04,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:24:04,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:24:04,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:24:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash 344146833, now seen corresponding path program 1 times [2024-06-27 22:24:04,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:24:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902649485] [2024-06-27 22:24:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:24:04,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:24:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:24:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:24:05,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:24:05,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902649485] [2024-06-27 22:24:05,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902649485] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:24:05,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:24:05,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:24:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714390618] [2024-06-27 22:24:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:24:05,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:24:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:24:05,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:24:05,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:24:05,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:24:05,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 22:24:05,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:24:05,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:24:05,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:24:10,011 INFO L124 PetriNetUnfolderBase]: 33983/49189 cut-off events. [2024-06-27 22:24:10,011 INFO L125 PetriNetUnfolderBase]: For 72822/72827 co-relation queries the response was YES. [2024-06-27 22:24:10,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135116 conditions, 49189 events. 33983/49189 cut-off events. For 72822/72827 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 343178 event pairs, 20016 based on Foata normal form. 63/47850 useless extension candidates. Maximal degree in co-relation 135099. Up to 44532 conditions per place. [2024-06-27 22:24:10,320 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 105 selfloop transitions, 25 changer transitions 0/143 dead transitions. [2024-06-27 22:24:10,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 143 transitions, 810 flow [2024-06-27 22:24:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:24:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:24:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2024-06-27 22:24:10,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.652542372881356 [2024-06-27 22:24:10,321 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 344 flow. Second operand 6 states and 231 transitions. [2024-06-27 22:24:10,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 143 transitions, 810 flow [2024-06-27 22:24:10,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 143 transitions, 798 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:24:10,337 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 423 flow [2024-06-27 22:24:10,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=423, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-06-27 22:24:10,338 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 12 predicate places. [2024-06-27 22:24:10,338 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 423 flow [2024-06-27 22:24:10,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 22:24:10,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:24:10,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:24:10,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:24:10,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:24:10,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:24:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash -714415924, now seen corresponding path program 1 times [2024-06-27 22:24:10,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:24:10,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228741624] [2024-06-27 22:24:10,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:24:10,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:24:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:24:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:24:11,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:24:11,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228741624] [2024-06-27 22:24:11,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228741624] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:24:11,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:24:11,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:24:11,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286037897] [2024-06-27 22:24:11,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:24:11,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:24:11,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:24:11,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:24:11,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:24:11,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 22:24:11,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 423 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-06-27 22:24:11,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:24:11,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 22:24:11,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:24:15,989 INFO L124 PetriNetUnfolderBase]: 32706/46436 cut-off events. [2024-06-27 22:24:15,989 INFO L125 PetriNetUnfolderBase]: For 91875/91875 co-relation queries the response was YES. [2024-06-27 22:24:16,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139354 conditions, 46436 events. 32706/46436 cut-off events. For 91875/91875 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 312902 event pairs, 15354 based on Foata normal form. 3/46268 useless extension candidates. Maximal degree in co-relation 139333. Up to 43167 conditions per place. [2024-06-27 22:24:16,296 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 85 selfloop transitions, 12 changer transitions 0/109 dead transitions. [2024-06-27 22:24:16,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 109 transitions, 697 flow [2024-06-27 22:24:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:24:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:24:16,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-06-27 22:24:16,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5491525423728814 [2024-06-27 22:24:16,298 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 423 flow. Second operand 5 states and 162 transitions. [2024-06-27 22:24:16,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 109 transitions, 697 flow [2024-06-27 22:24:16,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 109 transitions, 626 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-27 22:24:16,322 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 408 flow [2024-06-27 22:24:16,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2024-06-27 22:24:16,323 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 14 predicate places. [2024-06-27 22:24:16,323 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 408 flow [2024-06-27 22:24:16,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-06-27 22:24:16,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:24:16,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:24:16,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:24:16,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:24:16,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:24:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash -728361394, now seen corresponding path program 1 times [2024-06-27 22:24:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:24:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101985371] [2024-06-27 22:24:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:24:16,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:24:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:24:17,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:24:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:24:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101985371] [2024-06-27 22:24:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101985371] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:24:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:24:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:24:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815387952] [2024-06-27 22:24:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:24:17,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:24:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:24:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:24:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:24:17,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 22:24:17,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-06-27 22:24:17,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:24:17,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 22:24:17,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:24:22,673 INFO L124 PetriNetUnfolderBase]: 32674/47966 cut-off events. [2024-06-27 22:24:22,674 INFO L125 PetriNetUnfolderBase]: For 101207/101207 co-relation queries the response was YES. [2024-06-27 22:24:22,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141298 conditions, 47966 events. 32674/47966 cut-off events. For 101207/101207 co-relation queries the response was YES. Maximal size of possible extension queue 1681. Compared 342556 event pairs, 17613 based on Foata normal form. 10/46543 useless extension candidates. Maximal degree in co-relation 141273. Up to 43054 conditions per place. [2024-06-27 22:24:23,019 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 106 selfloop transitions, 24 changer transitions 0/142 dead transitions. [2024-06-27 22:24:23,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 142 transitions, 910 flow [2024-06-27 22:24:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:24:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:24:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2024-06-27 22:24:23,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5351089588377724 [2024-06-27 22:24:23,021 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 408 flow. Second operand 7 states and 221 transitions. [2024-06-27 22:24:23,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 142 transitions, 910 flow [2024-06-27 22:24:23,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 142 transitions, 868 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 22:24:23,050 INFO L231 Difference]: Finished difference. Result has 88 places, 101 transitions, 622 flow [2024-06-27 22:24:23,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=622, PETRI_PLACES=88, PETRI_TRANSITIONS=101} [2024-06-27 22:24:23,051 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 21 predicate places. [2024-06-27 22:24:23,051 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 101 transitions, 622 flow [2024-06-27 22:24:23,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-06-27 22:24:23,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:24:23,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:24:23,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 22:24:23,052 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:24:23,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:24:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1110087799, now seen corresponding path program 1 times [2024-06-27 22:24:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:24:23,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587615673] [2024-06-27 22:24:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:24:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:24:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:24:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 22:24:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:24:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587615673] [2024-06-27 22:24:24,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587615673] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:24:24,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:24:24,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:24:24,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138692680] [2024-06-27 22:24:24,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:24:24,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:24:24,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:24:24,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:24:24,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:24:24,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 59 [2024-06-27 22:24:24,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 101 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-06-27 22:24:24,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:24:24,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 59 [2024-06-27 22:24:24,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand