./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix044_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/mix044_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/mix044_tso.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix044_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 22:25:43,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:25:43,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:25:43,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:25:43,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:25:43,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:25:43,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:25:43,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:25:43,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:25:43,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:25:43,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:25:43,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:25:43,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:25:43,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:25:43,798 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:25:43,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:25:43,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:25:43,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:25:43,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:25:43,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:25:43,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:25:43,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:25:43,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:25:43,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:25:43,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:25:43,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:25:43,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:25:43,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:25:43,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:25:43,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:25:43,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:25:43,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:25:43,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:25:43,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:25:43,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:25:43,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:25:43,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:25:43,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:25:43,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:25:43,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:25:43,806 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:25:43,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:25:43,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:25:43,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:25:44,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:25:44,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:25:44,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:25:44,020 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:25:44,021 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:25:44,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix044_tso.oepc.yml/witness.yml [2024-06-27 22:25:44,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:25:44,119 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:25:44,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_tso.oepc.i [2024-06-27 22:25:45,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:25:45,419 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:25:45,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_tso.oepc.i [2024-06-27 22:25:45,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b59415c6/e95410448b514ccda148674df11ffac2/FLAGbf05456da [2024-06-27 22:25:45,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b59415c6/e95410448b514ccda148674df11ffac2 [2024-06-27 22:25:45,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:25:45,444 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:25:45,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:25:45,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:25:45,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:25:45,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:25:44" (1/2) ... [2024-06-27 22:25:45,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734b64ee and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:25:45, skipping insertion in model container [2024-06-27 22:25:45,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:25:44" (1/2) ... [2024-06-27 22:25:45,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@85f4b7a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:25:45, skipping insertion in model container [2024-06-27 22:25:45,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:25:45" (2/2) ... [2024-06-27 22:25:45,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734b64ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:45, skipping insertion in model container [2024-06-27 22:25:45,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:25:45" (2/2) ... [2024-06-27 22:25:45,455 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:25:45,481 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:25:45,482 INFO L97 edCorrectnessWitness]: Location invariant before [L859-L859] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 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 )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_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 )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-06-27 22:25:45,482 INFO L97 edCorrectnessWitness]: Location invariant before [L864-L864] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 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 )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_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 )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-06-27 22:25:45,482 INFO L97 edCorrectnessWitness]: Location invariant before [L861-L861] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 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 )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_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 )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-06-27 22:25:45,483 INFO L97 edCorrectnessWitness]: Location invariant before [L863-L863] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p1_EAX) + (long long )y >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )a >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )b >= 0LL) && (0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )x$w_buff1_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )y >= 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 )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p3_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_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 )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )b >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-06-27 22:25:45,483 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:25:45,483 INFO L106 edCorrectnessWitness]: ghost_update [L857-L857] multithreaded = 1; [2024-06-27 22:25:45,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:25:45,663 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/mix044_tso.oepc.i[949,962] [2024-06-27 22:25:45,855 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:25:45,866 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:25:45,897 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/mix044_tso.oepc.i[949,962] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:25:45,996 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:25:46,022 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:25:46,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46 WrapperNode [2024-06-27 22:25:46,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:25:46,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:25:46,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:25:46,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:25:46,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,091 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2024-06-27 22:25:46,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:25:46,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:25:46,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:25:46,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:25:46,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,137 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 22:25:46,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:25:46,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:25:46,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:25:46,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:25:46,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (1/1) ... [2024-06-27 22:25:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:25:46,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:25:46,196 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 22:25:46,198 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 22:25:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:25:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:25:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:25:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:25:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:25:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:25:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:25:46,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:25:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:25:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:25:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:25:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:25:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:25:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:25:46,231 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 22:25:46,354 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:25:46,356 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:25:46,881 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:25:46,882 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:25:47,020 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:25:47,021 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:25:47,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:25:47 BoogieIcfgContainer [2024-06-27 22:25:47,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:25:47,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:25:47,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:25:47,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:25:47,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:25:44" (1/4) ... [2024-06-27 22:25:47,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf35147 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:25:47, skipping insertion in model container [2024-06-27 22:25:47,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:25:45" (2/4) ... [2024-06-27 22:25:47,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf35147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:25:47, skipping insertion in model container [2024-06-27 22:25:47,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:25:46" (3/4) ... [2024-06-27 22:25:47,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf35147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:25:47, skipping insertion in model container [2024-06-27 22:25:47,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:25:47" (4/4) ... [2024-06-27 22:25:47,026 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044_tso.oepc.i [2024-06-27 22:25:47,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:25:47,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:25:47,039 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:25:47,081 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:25:47,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:25:47,129 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 22:25:47,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:25:47,131 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 98 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 22:25:47,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:25:47,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 22:25:47,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:25:47,145 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;@107018ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:25:47,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:25:47,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:25:47,148 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 22:25:47,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:25:47,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:25:47,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:25:47,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:25:47,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:25:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash 383745235, now seen corresponding path program 1 times [2024-06-27 22:25:47,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:25:47,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053123970] [2024-06-27 22:25:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:25:47,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:25:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:25:48,304 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 22:25:48,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:25:48,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053123970] [2024-06-27 22:25:48,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053123970] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:25:48,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:25:48,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:25:48,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911565343] [2024-06-27 22:25:48,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:25:48,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:25:48,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:25:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:25:48,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:25:48,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:25:48,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 22:25:48,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:25:48,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:25:48,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:25:52,894 INFO L124 PetriNetUnfolderBase]: 35624/51991 cut-off events. [2024-06-27 22:25:52,894 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2024-06-27 22:25:53,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99516 conditions, 51991 events. 35624/51991 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 1851. Compared 370323 event pairs, 31307 based on Foata normal form. 1296/49334 useless extension candidates. Maximal degree in co-relation 99503. Up to 46989 conditions per place. [2024-06-27 22:25:53,177 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 55 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-06-27 22:25:53,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 287 flow [2024-06-27 22:25:53,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:25:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:25:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-06-27 22:25:53,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-06-27 22:25:53,187 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 118 transitions. [2024-06-27 22:25:53,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 287 flow [2024-06-27 22:25:53,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:25:53,192 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 157 flow [2024-06-27 22:25:53,193 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 22:25:53,195 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 22:25:53,196 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 157 flow [2024-06-27 22:25:53,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 22:25:53,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:25:53,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:25:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:25:53,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:25:53,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:25:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash -587993230, now seen corresponding path program 1 times [2024-06-27 22:25:53,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:25:53,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341634192] [2024-06-27 22:25:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:25:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:25:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:25:54,064 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 22:25:54,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:25:54,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341634192] [2024-06-27 22:25:54,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341634192] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:25:54,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:25:54,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:25:54,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762128630] [2024-06-27 22:25:54,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:25:54,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:25:54,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:25:54,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:25:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:25:54,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 22:25:54,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 22:25:54,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:25:54,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 22:25:54,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:25:58,860 INFO L124 PetriNetUnfolderBase]: 41395/59441 cut-off events. [2024-06-27 22:25:58,861 INFO L125 PetriNetUnfolderBase]: For 8529/8529 co-relation queries the response was YES. [2024-06-27 22:25:59,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126582 conditions, 59441 events. 41395/59441 cut-off events. For 8529/8529 co-relation queries the response was YES. Maximal size of possible extension queue 2041. Compared 413588 event pairs, 33901 based on Foata normal form. 4/55524 useless extension candidates. Maximal degree in co-relation 126570. Up to 54437 conditions per place. [2024-06-27 22:25:59,213 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 71 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2024-06-27 22:25:59,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 403 flow [2024-06-27 22:25:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:25:59,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:25:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-06-27 22:25:59,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6313559322033898 [2024-06-27 22:25:59,221 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 157 flow. Second operand 4 states and 149 transitions. [2024-06-27 22:25:59,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 403 flow [2024-06-27 22:25:59,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:25:59,224 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 207 flow [2024-06-27 22:25:59,224 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 22:25:59,225 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 22:25:59,227 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 207 flow [2024-06-27 22:25:59,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 22:25:59,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:25:59,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:25:59,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:25:59,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:25:59,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:25:59,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1047920154, now seen corresponding path program 1 times [2024-06-27 22:25:59,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:25:59,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144442472] [2024-06-27 22:25:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:25:59,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:25:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:26:00,234 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 22:26:00,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:26:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144442472] [2024-06-27 22:26:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144442472] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:26:00,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:26:00,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:26:00,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052229206] [2024-06-27 22:26:00,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:26:00,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:26:00,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:26:00,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:26:00,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:26:00,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 22:26:00,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 22:26:00,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:26:00,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 22:26:00,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:26:04,968 INFO L124 PetriNetUnfolderBase]: 41295/58612 cut-off events. [2024-06-27 22:26:04,968 INFO L125 PetriNetUnfolderBase]: For 23748/23748 co-relation queries the response was YES. [2024-06-27 22:26:05,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137565 conditions, 58612 events. 41295/58612 cut-off events. For 23748/23748 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 400051 event pairs, 28517 based on Foata normal form. 8/54936 useless extension candidates. Maximal degree in co-relation 137551. Up to 54262 conditions per place. [2024-06-27 22:26:05,340 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 86 selfloop transitions, 16 changer transitions 0/114 dead transitions. [2024-06-27 22:26:05,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 114 transitions, 580 flow [2024-06-27 22:26:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:26:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:26:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-06-27 22:26:05,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6067796610169491 [2024-06-27 22:26:05,342 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 207 flow. Second operand 5 states and 179 transitions. [2024-06-27 22:26:05,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 114 transitions, 580 flow [2024-06-27 22:26:05,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 114 transitions, 544 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-06-27 22:26:05,350 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 334 flow [2024-06-27 22:26:05,351 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=334, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2024-06-27 22:26:05,352 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-27 22:26:05,352 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 334 flow [2024-06-27 22:26:05,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 22:26:05,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:26:05,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:26:05,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:26:05,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:26:05,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:26:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1175966293, now seen corresponding path program 1 times [2024-06-27 22:26:05,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:26:05,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238685917] [2024-06-27 22:26:05,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:26:05,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:26:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:26:06,856 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 22:26:06,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:26:06,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238685917] [2024-06-27 22:26:06,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238685917] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:26:06,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:26:06,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:26:06,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163668161] [2024-06-27 22:26:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:26:06,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:26:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:26:06,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:26:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:26:06,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-06-27 22:26:06,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 22:26:06,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:26:06,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-06-27 22:26:06,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:26:11,885 INFO L124 PetriNetUnfolderBase]: 41212/58441 cut-off events. [2024-06-27 22:26:11,885 INFO L125 PetriNetUnfolderBase]: For 45561/45561 co-relation queries the response was YES. [2024-06-27 22:26:12,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150610 conditions, 58441 events. 41212/58441 cut-off events. For 45561/45561 co-relation queries the response was YES. Maximal size of possible extension queue 2033. Compared 399403 event pairs, 25310 based on Foata normal form. 8/54787 useless extension candidates. Maximal degree in co-relation 150593. Up to 54095 conditions per place. [2024-06-27 22:26:12,297 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 95 selfloop transitions, 20 changer transitions 0/127 dead transitions. [2024-06-27 22:26:12,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 127 transitions, 700 flow [2024-06-27 22:26:12,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:26:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:26:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 208 transitions. [2024-06-27 22:26:12,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5875706214689266 [2024-06-27 22:26:12,299 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 334 flow. Second operand 6 states and 208 transitions. [2024-06-27 22:26:12,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 127 transitions, 700 flow [2024-06-27 22:26:12,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 127 transitions, 688 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:26:12,332 INFO L231 Difference]: Finished difference. Result has 79 places, 80 transitions, 403 flow [2024-06-27 22:26:12,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=79, PETRI_TRANSITIONS=80} [2024-06-27 22:26:12,333 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 12 predicate places. [2024-06-27 22:26:12,333 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 80 transitions, 403 flow [2024-06-27 22:26:12,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 22:26:12,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:26:12,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:26:12,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:26:12,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:26:12,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:26:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2009932908, now seen corresponding path program 1 times [2024-06-27 22:26:12,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:26:12,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494525801] [2024-06-27 22:26:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:26:12,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:26:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:26:13,426 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 22:26:13,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:26:13,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494525801] [2024-06-27 22:26:13,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494525801] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:26:13,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:26:13,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:26:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249013103] [2024-06-27 22:26:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:26:13,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:26:13,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:26:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:26:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:26:13,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 59 [2024-06-27 22:26:13,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 403 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:26:13,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:26:13,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 59 [2024-06-27 22:26:13,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:26:18,881 INFO L124 PetriNetUnfolderBase]: 39668/56952 cut-off events. [2024-06-27 22:26:18,881 INFO L125 PetriNetUnfolderBase]: For 67590/67590 co-relation queries the response was YES. [2024-06-27 22:26:19,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156790 conditions, 56952 events. 39668/56952 cut-off events. For 67590/67590 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 398211 event pairs, 25741 based on Foata normal form. 3/53244 useless extension candidates. Maximal degree in co-relation 156769. Up to 52216 conditions per place. [2024-06-27 22:26:19,255 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 87 selfloop transitions, 14 changer transitions 0/112 dead transitions. [2024-06-27 22:26:19,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 112 transitions, 738 flow [2024-06-27 22:26:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:26:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:26:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-06-27 22:26:19,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152542372881356 [2024-06-27 22:26:19,256 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 403 flow. Second operand 5 states and 152 transitions. [2024-06-27 22:26:19,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 112 transitions, 738 flow [2024-06-27 22:26:19,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 112 transitions, 673 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-27 22:26:19,274 INFO L231 Difference]: Finished difference. Result has 82 places, 92 transitions, 492 flow [2024-06-27 22:26:19,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=492, PETRI_PLACES=82, PETRI_TRANSITIONS=92} [2024-06-27 22:26:19,274 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 15 predicate places. [2024-06-27 22:26:19,275 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 92 transitions, 492 flow [2024-06-27 22:26:19,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:26:19,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:26:19,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:26:19,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:26:19,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:26:19,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:26:19,276 INFO L85 PathProgramCache]: Analyzing trace with hash -794824057, now seen corresponding path program 1 times [2024-06-27 22:26:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:26:19,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638441204] [2024-06-27 22:26:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:26:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:26:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:26:20,474 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 22:26:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:26:20,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638441204] [2024-06-27 22:26:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638441204] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:26:20,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:26:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:26:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115751414] [2024-06-27 22:26:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:26:20,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:26:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:26:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:26:20,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:26:20,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2024-06-27 22:26:20,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 92 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 22:26:20,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:26:20,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2024-06-27 22:26:20,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand