./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix008.opt.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/mix008.opt.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/mix008.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix008.opt.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 22:05:03,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 22:05:03,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 22:05:03,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 22:05:03,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 22:05:03,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 22:05:03,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 22:05:03,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 22:05:03,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 22:05:03,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 22:05:03,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 22:05:03,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 22:05:03,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 22:05:03,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 22:05:03,972 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 22:05:03,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 22:05:03,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 22:05:03,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 22:05:03,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 22:05:03,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 22:05:03,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 22:05:03,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 22:05:03,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 22:05:03,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 22:05:03,974 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 22:05:03,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 22:05:03,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 22:05:03,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 22:05:03,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 22:05:03,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 22:05:03,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 22:05:03,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 22:05:03,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:05:03,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 22:05:03,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 22:05:03,979 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 22:05:03,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 22:05:03,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 22:05:03,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 22:05:04,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 22:05:04,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 22:05:04,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 22:05:04,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 22:05:04,178 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 22:05:04,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008.opt.i [2024-06-27 22:05:05,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 22:05:05,564 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 22:05:05,564 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008.opt.i [2024-06-27 22:05:05,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897f5494c/16d573f33b7f45c1ab4346da1fb191a2/FLAG074721a2d [2024-06-27 22:05:05,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897f5494c/16d573f33b7f45c1ab4346da1fb191a2 [2024-06-27 22:05:05,598 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 22:05:05,598 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 22:05:05,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix008.opt.yml/witness.yml [2024-06-27 22:05:05,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 22:05:05,684 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 22:05:05,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 22:05:05,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 22:05:05,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 22:05:05,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:05:05" (1/2) ... [2024-06-27 22:05:05,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d9cabbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:05:05, skipping insertion in model container [2024-06-27 22:05:05,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 10:05:05" (1/2) ... [2024-06-27 22:05:05,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fcea338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 10:05:05, skipping insertion in model container [2024-06-27 22:05:05,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:05:05" (2/2) ... [2024-06-27 22:05:05,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d9cabbf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:05, skipping insertion in model container [2024-06-27 22:05:05,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:05:05" (2/2) ... [2024-06-27 22:05:05,694 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 22:05:05,719 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 22:05:05,720 INFO L97 edCorrectnessWitness]: Location invariant before [L870-L870] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z$w_buff0 >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$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 )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 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_p2_EBX) - (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 )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:05:05,720 INFO L97 edCorrectnessWitness]: Location invariant before [L875-L875] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z$w_buff0 >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$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 )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 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_p2_EBX) - (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 )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:05:05,721 INFO L97 edCorrectnessWitness]: Location invariant before [L872-L872] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z$w_buff0 >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$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 )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 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_p2_EBX) - (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 )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:05:05,721 INFO L97 edCorrectnessWitness]: Location invariant before [L874-L874] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z$w_buff0 >= 0LL && (0LL - (long long )__unbuffered_p3_EAX) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )__unbuffered_p3_EBX) + (long long )a >= 0LL) && (0LL - (long long )z) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$mem_tmp) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd4) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )main$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 )z >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff0_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$r_buff1_thd4 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff0_used >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) + (long long )z$w_buff1_used >= 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_p2_EBX) - (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 )z$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p3_EBX) - (long long )z$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p3_EBX) - (long long )a >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-27 22:05:05,721 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 22:05:05,722 INFO L106 edCorrectnessWitness]: ghost_update [L868-L868] multithreaded = 1; [2024-06-27 22:05:05,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 22:05:05,872 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/mix008.opt.i[944,957] [2024-06-27 22:05:06,036 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:05:06,046 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 22:05:06,087 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/mix008.opt.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 22:05:06,252 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 22:05:06,293 INFO L206 MainTranslator]: Completed translation [2024-06-27 22:05:06,297 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06 WrapperNode [2024-06-27 22:05:06,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 22:05:06,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 22:05:06,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 22:05:06,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 22:05:06,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,368 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 157 [2024-06-27 22:05:06,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 22:05:06,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 22:05:06,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 22:05:06,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 22:05:06,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,417 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 22:05:06,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 22:05:06,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 22:05:06,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 22:05:06,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 22:05:06,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (1/1) ... [2024-06-27 22:05:06,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 22:05:06,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 22:05:06,493 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 22:05:06,510 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 22:05:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 22:05:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 22:05:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 22:05:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 22:05:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 22:05:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 22:05:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 22:05:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 22:05:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 22:05:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 22:05:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 22:05:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 22:05:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 22:05:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 22:05:06,526 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 22:05:06,652 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 22:05:06,654 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 22:05:07,137 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 22:05:07,137 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 22:05:07,308 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 22:05:07,309 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 22:05:07,309 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:05:07 BoogieIcfgContainer [2024-06-27 22:05:07,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 22:05:07,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 22:05:07,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 22:05:07,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 22:05:07,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 10:05:05" (1/4) ... [2024-06-27 22:05:07,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6a1cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 10:05:07, skipping insertion in model container [2024-06-27 22:05:07,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 10:05:05" (2/4) ... [2024-06-27 22:05:07,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6a1cb0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:05:07, skipping insertion in model container [2024-06-27 22:05:07,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 10:05:06" (3/4) ... [2024-06-27 22:05:07,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6a1cb0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 10:05:07, skipping insertion in model container [2024-06-27 22:05:07,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 10:05:07" (4/4) ... [2024-06-27 22:05:07,319 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2024-06-27 22:05:07,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 22:05:07,332 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-06-27 22:05:07,332 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 22:05:07,386 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 22:05:07,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:05:07,464 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-06-27 22:05:07,464 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:05:07,468 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 97 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 22:05:07,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 59 transitions, 134 flow [2024-06-27 22:05:07,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 55 transitions, 122 flow [2024-06-27 22:05:07,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 22:05:07,496 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;@7ece9335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 22:05:07,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-06-27 22:05:07,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 22:05:07,504 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 22:05:07,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 22:05:07,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:07,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 22:05:07,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:07,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash 405243281, now seen corresponding path program 1 times [2024-06-27 22:05:07,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:07,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925964413] [2024-06-27 22:05:07,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:07,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:08,813 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 22:05:08,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:08,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925964413] [2024-06-27 22:05:08,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925964413] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:08,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:08,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 22:05:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337308684] [2024-06-27 22:05:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:08,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 22:05:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:08,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 22:05:08,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 22:05:08,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 59 [2024-06-27 22:05:08,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 22:05:08,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:08,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 59 [2024-06-27 22:05:08,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:11,786 INFO L124 PetriNetUnfolderBase]: 20415/30746 cut-off events. [2024-06-27 22:05:11,786 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-06-27 22:05:11,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58214 conditions, 30746 events. 20415/30746 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 221124 event pairs, 17465 based on Foata normal form. 750/29368 useless extension candidates. Maximal degree in co-relation 58201. Up to 27135 conditions per place. [2024-06-27 22:05:11,998 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 51 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-06-27 22:05:11,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 277 flow [2024-06-27 22:05:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 22:05:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 22:05:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-27 22:05:12,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2024-06-27 22:05:12,009 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 122 flow. Second operand 3 states and 123 transitions. [2024-06-27 22:05:12,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 277 flow [2024-06-27 22:05:12,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 72 transitions, 270 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 22:05:12,014 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 157 flow [2024-06-27 22:05:12,015 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 22:05:12,018 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2024-06-27 22:05:12,018 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 157 flow [2024-06-27 22:05:12,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 22:05:12,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:12,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:12,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 22:05:12,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:12,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1402655476, now seen corresponding path program 1 times [2024-06-27 22:05:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:12,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53883468] [2024-06-27 22:05:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:12,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:12,822 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 22:05:12,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:12,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53883468] [2024-06-27 22:05:12,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53883468] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:12,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:12,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 22:05:12,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614794645] [2024-06-27 22:05:12,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:12,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 22:05:12,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:12,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 22:05:12,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 22:05:12,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 22:05:12,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:05:12,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:12,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 22:05:12,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:15,925 INFO L124 PetriNetUnfolderBase]: 23228/34580 cut-off events. [2024-06-27 22:05:15,926 INFO L125 PetriNetUnfolderBase]: For 5391/5391 co-relation queries the response was YES. [2024-06-27 22:05:15,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73140 conditions, 34580 events. 23228/34580 cut-off events. For 5391/5391 co-relation queries the response was YES. Maximal size of possible extension queue 1295. Compared 245788 event pairs, 18099 based on Foata normal form. 4/32672 useless extension candidates. Maximal degree in co-relation 73128. Up to 30783 conditions per place. [2024-06-27 22:05:16,103 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 66 selfloop transitions, 9 changer transitions 0/90 dead transitions. [2024-06-27 22:05:16,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 389 flow [2024-06-27 22:05:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 22:05:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 22:05:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 156 transitions. [2024-06-27 22:05:16,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6610169491525424 [2024-06-27 22:05:16,111 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 157 flow. Second operand 4 states and 156 transitions. [2024-06-27 22:05:16,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 389 flow [2024-06-27 22:05:16,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 90 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 22:05:16,116 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 207 flow [2024-06-27 22:05:16,116 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 22:05:16,117 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-06-27 22:05:16,119 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 207 flow [2024-06-27 22:05:16,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:05:16,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:16,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:16,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 22:05:16,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:16,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash -532644970, now seen corresponding path program 1 times [2024-06-27 22:05:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997471698] [2024-06-27 22:05:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:16,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:17,047 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 22:05:17,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997471698] [2024-06-27 22:05:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997471698] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:17,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:17,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:05:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043394405] [2024-06-27 22:05:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:05:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:05:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:05:17,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 22:05:17,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:05:17,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:17,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 22:05:17,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:20,055 INFO L124 PetriNetUnfolderBase]: 23154/34544 cut-off events. [2024-06-27 22:05:20,055 INFO L125 PetriNetUnfolderBase]: For 15083/15083 co-relation queries the response was YES. [2024-06-27 22:05:20,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80276 conditions, 34544 events. 23154/34544 cut-off events. For 15083/15083 co-relation queries the response was YES. Maximal size of possible extension queue 1292. Compared 245507 event pairs, 15021 based on Foata normal form. 7/32699 useless extension candidates. Maximal degree in co-relation 80262. Up to 30544 conditions per place. [2024-06-27 22:05:20,246 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 88 selfloop transitions, 21 changer transitions 0/124 dead transitions. [2024-06-27 22:05:20,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 623 flow [2024-06-27 22:05:20,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:05:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:05:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-06-27 22:05:20,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2024-06-27 22:05:20,248 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 207 flow. Second operand 5 states and 205 transitions. [2024-06-27 22:05:20,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 623 flow [2024-06-27 22:05:20,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 124 transitions, 604 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-27 22:05:20,253 INFO L231 Difference]: Finished difference. Result has 74 places, 76 transitions, 344 flow [2024-06-27 22:05:20,253 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 22:05:20,254 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2024-06-27 22:05:20,254 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 76 transitions, 344 flow [2024-06-27 22:05:20,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 22:05:20,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:20,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:20,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 22:05:20,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:20,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash 949479153, now seen corresponding path program 1 times [2024-06-27 22:05:20,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:20,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708223898] [2024-06-27 22:05:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:20,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:21,382 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 22:05:21,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:21,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708223898] [2024-06-27 22:05:21,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708223898] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:21,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:21,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:05:21,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151614405] [2024-06-27 22:05:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:21,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:05:21,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:05:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:05:21,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 59 [2024-06-27 22:05:21,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 76 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 22:05:21,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:21,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 59 [2024-06-27 22:05:21,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:24,697 INFO L124 PetriNetUnfolderBase]: 23164/34554 cut-off events. [2024-06-27 22:05:24,698 INFO L125 PetriNetUnfolderBase]: For 47307/47312 co-relation queries the response was YES. [2024-06-27 22:05:24,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93922 conditions, 34554 events. 23164/34554 cut-off events. For 47307/47312 co-relation queries the response was YES. Maximal size of possible extension queue 1291. Compared 245808 event pairs, 12814 based on Foata normal form. 45/33584 useless extension candidates. Maximal degree in co-relation 93905. Up to 30452 conditions per place. [2024-06-27 22:05:24,875 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 99 selfloop transitions, 25 changer transitions 0/139 dead transitions. [2024-06-27 22:05:24,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 139 transitions, 790 flow [2024-06-27 22:05:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:05:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:05:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 237 transitions. [2024-06-27 22:05:24,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6694915254237288 [2024-06-27 22:05:24,877 INFO L175 Difference]: Start difference. First operand has 74 places, 76 transitions, 344 flow. Second operand 6 states and 237 transitions. [2024-06-27 22:05:24,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 139 transitions, 790 flow [2024-06-27 22:05:24,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 139 transitions, 778 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-06-27 22:05:24,891 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 423 flow [2024-06-27 22:05:24,891 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 22:05:24,892 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 12 predicate places. [2024-06-27 22:05:24,892 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 423 flow [2024-06-27 22:05:24,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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 22:05:24,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:24,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:24,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 22:05:24,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:24,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:24,894 INFO L85 PathProgramCache]: Analyzing trace with hash -283299581, now seen corresponding path program 1 times [2024-06-27 22:05:24,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:24,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581282809] [2024-06-27 22:05:24,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:25,946 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 22:05:25,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:25,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581282809] [2024-06-27 22:05:25,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581282809] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:25,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:25,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 22:05:25,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240168064] [2024-06-27 22:05:25,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:25,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 22:05:25,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:25,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 22:05:25,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 22:05:26,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 59 [2024-06-27 22:05:26,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 423 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 22:05:26,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:26,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 59 [2024-06-27 22:05:26,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:29,619 INFO L124 PetriNetUnfolderBase]: 23135/34122 cut-off events. [2024-06-27 22:05:29,619 INFO L125 PetriNetUnfolderBase]: For 73409/73409 co-relation queries the response was YES. [2024-06-27 22:05:29,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101529 conditions, 34122 events. 23135/34122 cut-off events. For 73409/73409 co-relation queries the response was YES. Maximal size of possible extension queue 1198. Compared 239600 event pairs, 15008 based on Foata normal form. 3/33141 useless extension candidates. Maximal degree in co-relation 101508. Up to 30676 conditions per place. [2024-06-27 22:05:29,828 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 81 selfloop transitions, 12 changer transitions 0/107 dead transitions. [2024-06-27 22:05:29,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 685 flow [2024-06-27 22:05:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 22:05:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 22:05:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-06-27 22:05:29,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694915254237288 [2024-06-27 22:05:29,833 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 423 flow. Second operand 5 states and 168 transitions. [2024-06-27 22:05:29,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 685 flow [2024-06-27 22:05:29,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 614 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-27 22:05:29,853 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 408 flow [2024-06-27 22:05:29,853 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 22:05:29,855 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 14 predicate places. [2024-06-27 22:05:29,856 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 408 flow [2024-06-27 22:05:29,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 22:05:29,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:29,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:29,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 22:05:29,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:29,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:29,857 INFO L85 PathProgramCache]: Analyzing trace with hash -230204257, now seen corresponding path program 1 times [2024-06-27 22:05:29,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:29,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135498282] [2024-06-27 22:05:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:31,181 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 22:05:31,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:31,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135498282] [2024-06-27 22:05:31,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135498282] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:31,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:31,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:05:31,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402747472] [2024-06-27 22:05:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:31,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:05:31,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:31,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:05:31,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:05:31,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:05:31,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:31,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:31,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:05:31,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:35,538 INFO L124 PetriNetUnfolderBase]: 28116/41286 cut-off events. [2024-06-27 22:05:35,538 INFO L125 PetriNetUnfolderBase]: For 89494/89494 co-relation queries the response was YES. [2024-06-27 22:05:35,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121985 conditions, 41286 events. 28116/41286 cut-off events. For 89494/89494 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 292130 event pairs, 17640 based on Foata normal form. 9/40115 useless extension candidates. Maximal degree in co-relation 121960. Up to 36959 conditions per place. [2024-06-27 22:05:36,048 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 114 selfloop transitions, 35 changer transitions 0/162 dead transitions. [2024-06-27 22:05:36,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 162 transitions, 1052 flow [2024-06-27 22:05:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 22:05:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 22:05:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2024-06-27 22:05:36,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5614406779661016 [2024-06-27 22:05:36,051 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 408 flow. Second operand 8 states and 265 transitions. [2024-06-27 22:05:36,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 162 transitions, 1052 flow [2024-06-27 22:05:36,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 162 transitions, 1028 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 22:05:36,102 INFO L231 Difference]: Finished difference. Result has 90 places, 106 transitions, 692 flow [2024-06-27 22:05:36,102 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=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=692, PETRI_PLACES=90, PETRI_TRANSITIONS=106} [2024-06-27 22:05:36,104 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 23 predicate places. [2024-06-27 22:05:36,105 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 106 transitions, 692 flow [2024-06-27 22:05:36,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:36,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:36,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:36,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 22:05:36,105 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:36,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1144258152, now seen corresponding path program 1 times [2024-06-27 22:05:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:36,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689932294] [2024-06-27 22:05:36,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:36,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:37,358 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 22:05:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:37,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689932294] [2024-06-27 22:05:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689932294] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:37,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:05:37,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567473346] [2024-06-27 22:05:37,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:37,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:05:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:05:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:05:37,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:05:37,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 106 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:37,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:37,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:05:37,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:42,327 INFO L124 PetriNetUnfolderBase]: 31184/45237 cut-off events. [2024-06-27 22:05:42,327 INFO L125 PetriNetUnfolderBase]: For 159421/159436 co-relation queries the response was YES. [2024-06-27 22:05:42,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152218 conditions, 45237 events. 31184/45237 cut-off events. For 159421/159436 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 315125 event pairs, 16588 based on Foata normal form. 15/43937 useless extension candidates. Maximal degree in co-relation 152187. Up to 40822 conditions per place. [2024-06-27 22:05:42,664 INFO L140 encePairwiseOnDemand]: 43/59 looper letters, 125 selfloop transitions, 41 changer transitions 0/184 dead transitions. [2024-06-27 22:05:42,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 184 transitions, 1360 flow [2024-06-27 22:05:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 22:05:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 22:05:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 244 transitions. [2024-06-27 22:05:42,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907990314769975 [2024-06-27 22:05:42,666 INFO L175 Difference]: Start difference. First operand has 90 places, 106 transitions, 692 flow. Second operand 7 states and 244 transitions. [2024-06-27 22:05:42,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 184 transitions, 1360 flow [2024-06-27 22:05:43,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 184 transitions, 1317 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-06-27 22:05:43,290 INFO L231 Difference]: Finished difference. Result has 98 places, 127 transitions, 912 flow [2024-06-27 22:05:43,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=912, PETRI_PLACES=98, PETRI_TRANSITIONS=127} [2024-06-27 22:05:43,291 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 31 predicate places. [2024-06-27 22:05:43,291 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 127 transitions, 912 flow [2024-06-27 22:05:43,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:43,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:43,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:43,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 22:05:43,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:43,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:43,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1447882752, now seen corresponding path program 2 times [2024-06-27 22:05:43,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:43,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558574623] [2024-06-27 22:05:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:43,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 22:05:44,532 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 22:05:44,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 22:05:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558574623] [2024-06-27 22:05:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558574623] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 22:05:44,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 22:05:44,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 22:05:44,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359486201] [2024-06-27 22:05:44,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 22:05:44,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 22:05:44,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 22:05:44,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 22:05:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 22:05:44,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 59 [2024-06-27 22:05:44,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 127 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:44,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 22:05:44,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 59 [2024-06-27 22:05:44,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 22:05:49,549 INFO L124 PetriNetUnfolderBase]: 31254/42230 cut-off events. [2024-06-27 22:05:49,549 INFO L125 PetriNetUnfolderBase]: For 150049/150072 co-relation queries the response was YES. [2024-06-27 22:05:49,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149823 conditions, 42230 events. 31254/42230 cut-off events. For 150049/150072 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 258123 event pairs, 12993 based on Foata normal form. 27/42050 useless extension candidates. Maximal degree in co-relation 149787. Up to 40591 conditions per place. [2024-06-27 22:05:49,856 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 117 selfloop transitions, 58 changer transitions 0/193 dead transitions. [2024-06-27 22:05:49,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 193 transitions, 1660 flow [2024-06-27 22:05:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 22:05:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 22:05:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 209 transitions. [2024-06-27 22:05:49,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5903954802259888 [2024-06-27 22:05:49,858 INFO L175 Difference]: Start difference. First operand has 98 places, 127 transitions, 912 flow. Second operand 6 states and 209 transitions. [2024-06-27 22:05:49,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 193 transitions, 1660 flow [2024-06-27 22:05:50,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 193 transitions, 1589 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-06-27 22:05:50,061 INFO L231 Difference]: Finished difference. Result has 103 places, 148 transitions, 1225 flow [2024-06-27 22:05:50,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1225, PETRI_PLACES=103, PETRI_TRANSITIONS=148} [2024-06-27 22:05:50,061 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 36 predicate places. [2024-06-27 22:05:50,062 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 148 transitions, 1225 flow [2024-06-27 22:05:50,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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 22:05:50,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 22:05:50,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 22:05:50,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 22:05:50,062 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 8 more)] === [2024-06-27 22:05:50,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 22:05:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1957681386, now seen corresponding path program 3 times [2024-06-27 22:05:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 22:05:50,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119907358] [2024-06-27 22:05:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 22:05:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 22:05:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat