./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix035_power.opt_rmo.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix035_power.opt_rmo.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/mix035_power.opt_rmo.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix035_power.opt_rmo.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 15:12:07,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 15:12:07,666 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 15:12:07,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 15:12:07,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 15:12:07,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 15:12:07,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 15:12:07,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 15:12:07,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 15:12:07,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 15:12:07,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 15:12:07,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 15:12:07,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 15:12:07,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 15:12:07,709 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 15:12:07,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 15:12:07,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 15:12:07,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 15:12:07,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 15:12:07,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 15:12:07,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 15:12:07,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 15:12:07,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 15:12:07,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 15:12:07,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 15:12:07,712 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 15:12:07,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 15:12:07,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 15:12:07,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 15:12:07,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 15:12:07,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 15:12:07,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 15:12:07,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:12:07,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 15:12:07,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 15:12:07,715 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 15:12:07,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 15:12:07,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 15:12:07,716 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 15:12:07,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 15:12:07,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 15:12:07,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 15:12:07,998 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 15:12:07,998 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 15:12:07,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix035_power.opt_rmo.opt.yml/witness.yml [2024-06-14 15:12:08,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 15:12:08,223 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 15:12:08,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix035_power.opt_rmo.opt.i [2024-06-14 15:12:09,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 15:12:09,520 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 15:12:09,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix035_power.opt_rmo.opt.i [2024-06-14 15:12:09,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158b55d37/871bfec521d74a98bfc9b87a6cac5774/FLAGdead52261 [2024-06-14 15:12:09,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158b55d37/871bfec521d74a98bfc9b87a6cac5774 [2024-06-14 15:12:09,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 15:12:09,558 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 15:12:09,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 15:12:09,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 15:12:09,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 15:12:09,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:12:08" (1/2) ... [2024-06-14 15:12:09,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef6bbef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:12:09, skipping insertion in model container [2024-06-14 15:12:09,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:12:08" (1/2) ... [2024-06-14 15:12:09,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72d2e995 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:12:09, skipping insertion in model container [2024-06-14 15:12:09,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:12:09" (2/2) ... [2024-06-14 15:12:09,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef6bbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:09, skipping insertion in model container [2024-06-14 15:12:09,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:12:09" (2/2) ... [2024-06-14 15:12:09,570 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 15:12:09,645 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 15:12:09,647 INFO L97 edCorrectnessWitness]: Location invariant before [L846-L846] (((((((((((((((((((((! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )a) - (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0) [2024-06-14 15:12:09,647 INFO L97 edCorrectnessWitness]: Location invariant before [L847-L847] (((((((((((((((((((((! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )a) - (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0) [2024-06-14 15:12:09,648 INFO L97 edCorrectnessWitness]: Location invariant before [L844-L844] (((((((((((((((((((((! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )a) - (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0) [2024-06-14 15:12:09,649 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 15:12:09,649 INFO L106 edCorrectnessWitness]: ghost_update [L842-L842] multithreaded = 1; [2024-06-14 15:12:09,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 15:12:10,020 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:12:10,028 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 15:12:10,448 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:12:10,482 INFO L206 MainTranslator]: Completed translation [2024-06-14 15:12:10,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10 WrapperNode [2024-06-14 15:12:10,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 15:12:10,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 15:12:10,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 15:12:10,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 15:12:10,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,637 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 128 [2024-06-14 15:12:10,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 15:12:10,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 15:12:10,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 15:12:10,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 15:12:10,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,717 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]. [2024-06-14 15:12:10,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,791 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 15:12:10,792 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 15:12:10,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 15:12:10,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 15:12:10,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (1/1) ... [2024-06-14 15:12:10,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:12:10,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 15:12:10,816 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) [2024-06-14 15:12:10,819 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 [2024-06-14 15:12:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 15:12:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 15:12:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-14 15:12:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-14 15:12:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-14 15:12:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-14 15:12:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-14 15:12:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-14 15:12:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 15:12:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 15:12:10,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 15:12:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 15:12:10,960 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 15:12:11,093 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 15:12:11,094 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 15:12:12,319 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 15:12:12,319 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 15:12:12,619 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 15:12:12,619 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 15:12:12,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:12:12 BoogieIcfgContainer [2024-06-14 15:12:12,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 15:12:12,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 15:12:12,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 15:12:12,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 15:12:12,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:12:08" (1/4) ... [2024-06-14 15:12:12,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc6f788 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 03:12:12, skipping insertion in model container [2024-06-14 15:12:12,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 03:12:09" (2/4) ... [2024-06-14 15:12:12,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc6f788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:12:12, skipping insertion in model container [2024-06-14 15:12:12,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:12:10" (3/4) ... [2024-06-14 15:12:12,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc6f788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:12:12, skipping insertion in model container [2024-06-14 15:12:12,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:12:12" (4/4) ... [2024-06-14 15:12:12,629 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_power.opt_rmo.opt.i [2024-06-14 15:12:12,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 15:12:12,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 15:12:12,642 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 15:12:12,781 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-14 15:12:12,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 98 flow [2024-06-14 15:12:12,870 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-06-14 15:12:12,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:12:12,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-14 15:12:12,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 43 transitions, 98 flow [2024-06-14 15:12:12,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-06-14 15:12:12,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 15:12:12,897 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;@1f40b7d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 15:12:12,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 15:12:12,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 15:12:12,908 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 15:12:12,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:12:12,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:12,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 15:12:12,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:12,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:12,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1358440230, now seen corresponding path program 1 times [2024-06-14 15:12:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:12,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990185808] [2024-06-14 15:12:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:12:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:12:19,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:12:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990185808] [2024-06-14 15:12:19,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990185808] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:12:19,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:12:19,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 15:12:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284839760] [2024-06-14 15:12:19,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:12:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 15:12:19,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:12:19,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 15:12:19,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 15:12:19,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-06-14 15:12:19,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-06-14 15:12:19,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:12:19,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-06-14 15:12:19,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:12:20,322 INFO L124 PetriNetUnfolderBase]: 1116/1817 cut-off events. [2024-06-14 15:12:20,323 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-06-14 15:12:20,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 1817 events. 1116/1817 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 9170 event pairs, 765 based on Foata normal form. 1/1763 useless extension candidates. Maximal degree in co-relation 3555. Up to 1676 conditions per place. [2024-06-14 15:12:20,337 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 33 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-06-14 15:12:20,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 177 flow [2024-06-14 15:12:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 15:12:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 15:12:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-06-14 15:12:20,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6124031007751938 [2024-06-14 15:12:20,349 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 79 transitions. [2024-06-14 15:12:20,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 177 flow [2024-06-14 15:12:20,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 15:12:20,353 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 104 flow [2024-06-14 15:12:20,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2024-06-14 15:12:20,357 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-06-14 15:12:20,358 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 104 flow [2024-06-14 15:12:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-06-14 15:12:20,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:20,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:12:20,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 15:12:20,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:20,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 209036473, now seen corresponding path program 1 times [2024-06-14 15:12:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:20,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136380324] [2024-06-14 15:12:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:12:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:12:25,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:12:25,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136380324] [2024-06-14 15:12:25,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136380324] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:12:25,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:12:25,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 15:12:25,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851850858] [2024-06-14 15:12:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:12:25,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 15:12:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:12:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 15:12:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 15:12:25,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-14 15:12:25,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:12:25,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:12:25,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-14 15:12:25,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:12:26,214 INFO L124 PetriNetUnfolderBase]: 1280/2008 cut-off events. [2024-06-14 15:12:26,214 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-06-14 15:12:26,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4531 conditions, 2008 events. 1280/2008 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9863 event pairs, 750 based on Foata normal form. 3/1985 useless extension candidates. Maximal degree in co-relation 4516. Up to 1897 conditions per place. [2024-06-14 15:12:26,225 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 41 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-06-14 15:12:26,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 246 flow [2024-06-14 15:12:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 15:12:26,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 15:12:26,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-06-14 15:12:26,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5755813953488372 [2024-06-14 15:12:26,227 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 104 flow. Second operand 4 states and 99 transitions. [2024-06-14 15:12:26,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 246 flow [2024-06-14 15:12:26,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 15:12:26,229 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 140 flow [2024-06-14 15:12:26,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-06-14 15:12:26,230 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-06-14 15:12:26,230 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 140 flow [2024-06-14 15:12:26,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:12:26,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:26,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:12:26,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 15:12:26,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:26,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2109802633, now seen corresponding path program 1 times [2024-06-14 15:12:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:26,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973459397] [2024-06-14 15:12:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:26,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:12:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:12:32,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:12:32,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973459397] [2024-06-14 15:12:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973459397] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:12:32,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:12:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 15:12:32,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232855337] [2024-06-14 15:12:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:12:32,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 15:12:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:12:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 15:12:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 15:12:32,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-14 15:12:32,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-06-14 15:12:32,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:12:32,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-14 15:12:32,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:12:33,518 INFO L124 PetriNetUnfolderBase]: 1274/2001 cut-off events. [2024-06-14 15:12:33,519 INFO L125 PetriNetUnfolderBase]: For 1079/1079 co-relation queries the response was YES. [2024-06-14 15:12:33,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5032 conditions, 2001 events. 1274/2001 cut-off events. For 1079/1079 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9848 event pairs, 608 based on Foata normal form. 3/1978 useless extension candidates. Maximal degree in co-relation 5015. Up to 1873 conditions per place. [2024-06-14 15:12:33,528 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 48 selfloop transitions, 10 changer transitions 0/64 dead transitions. [2024-06-14 15:12:33,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 64 transitions, 324 flow [2024-06-14 15:12:33,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:12:33,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:12:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-14 15:12:33,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5627906976744186 [2024-06-14 15:12:33,531 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 140 flow. Second operand 5 states and 121 transitions. [2024-06-14 15:12:33,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 64 transitions, 324 flow [2024-06-14 15:12:33,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 310 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-14 15:12:33,534 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 176 flow [2024-06-14 15:12:33,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-06-14 15:12:33,534 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2024-06-14 15:12:33,535 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 176 flow [2024-06-14 15:12:33,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-06-14 15:12:33,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:33,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:12:33,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 15:12:33,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:33,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -295724106, now seen corresponding path program 1 times [2024-06-14 15:12:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340933300] [2024-06-14 15:12:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:33,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:12:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:12:39,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:12:39,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340933300] [2024-06-14 15:12:39,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340933300] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:12:39,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:12:39,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:12:39,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643478158] [2024-06-14 15:12:39,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:12:39,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:12:39,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:12:39,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:12:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:12:39,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-14 15:12:39,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-06-14 15:12:39,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:12:39,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-14 15:12:39,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:12:40,643 INFO L124 PetriNetUnfolderBase]: 1265/1984 cut-off events. [2024-06-14 15:12:40,643 INFO L125 PetriNetUnfolderBase]: For 1998/1998 co-relation queries the response was YES. [2024-06-14 15:12:40,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5480 conditions, 1984 events. 1265/1984 cut-off events. For 1998/1998 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9718 event pairs, 445 based on Foata normal form. 6/1964 useless extension candidates. Maximal degree in co-relation 5462. Up to 1828 conditions per place. [2024-06-14 15:12:40,653 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 52 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2024-06-14 15:12:40,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 70 transitions, 378 flow [2024-06-14 15:12:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:12:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:12:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-06-14 15:12:40,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387596899224806 [2024-06-14 15:12:40,655 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 176 flow. Second operand 6 states and 139 transitions. [2024-06-14 15:12:40,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 70 transitions, 378 flow [2024-06-14 15:12:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 70 transitions, 354 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-14 15:12:40,658 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 195 flow [2024-06-14 15:12:40,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-06-14 15:12:40,659 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2024-06-14 15:12:40,659 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 195 flow [2024-06-14 15:12:40,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2024-06-14 15:12:40,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:40,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:12:40,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 15:12:40,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:40,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:40,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1079015881, now seen corresponding path program 1 times [2024-06-14 15:12:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:40,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358836863] [2024-06-14 15:12:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:40,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:12:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:12:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:12:49,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358836863] [2024-06-14 15:12:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358836863] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:12:49,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:12:49,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:12:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607605097] [2024-06-14 15:12:49,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:12:49,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:12:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:12:49,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:12:49,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:12:49,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-14 15:12:49,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-06-14 15:12:49,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:12:49,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-14 15:12:49,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:12:50,453 INFO L124 PetriNetUnfolderBase]: 1090/1820 cut-off events. [2024-06-14 15:12:50,453 INFO L125 PetriNetUnfolderBase]: For 2654/2654 co-relation queries the response was YES. [2024-06-14 15:12:50,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5208 conditions, 1820 events. 1090/1820 cut-off events. For 2654/2654 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9344 event pairs, 460 based on Foata normal form. 2/1815 useless extension candidates. Maximal degree in co-relation 5189. Up to 1627 conditions per place. [2024-06-14 15:12:50,464 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 43 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2024-06-14 15:12:50,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 58 transitions, 341 flow [2024-06-14 15:12:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:12:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:12:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2024-06-14 15:12:50,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2024-06-14 15:12:50,467 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 195 flow. Second operand 5 states and 105 transitions. [2024-06-14 15:12:50,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 58 transitions, 341 flow [2024-06-14 15:12:50,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 308 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-14 15:12:50,475 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 208 flow [2024-06-14 15:12:50,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-06-14 15:12:50,477 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-06-14 15:12:50,477 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 208 flow [2024-06-14 15:12:50,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-06-14 15:12:50,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:12:50,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:12:50,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 15:12:50,482 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:12:50,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:12:50,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1852829226, now seen corresponding path program 1 times [2024-06-14 15:12:50,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:12:50,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463071476] [2024-06-14 15:12:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:12:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:12:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:00,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:00,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463071476] [2024-06-14 15:13:00,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463071476] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:00,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:00,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:13:00,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619191332] [2024-06-14 15:13:00,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:00,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:13:00,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:00,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:13:00,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:13:00,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:00,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 208 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-14 15:13:00,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:00,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:00,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:13:01,445 INFO L124 PetriNetUnfolderBase]: 1282/2029 cut-off events. [2024-06-14 15:13:01,445 INFO L125 PetriNetUnfolderBase]: For 4361/4361 co-relation queries the response was YES. [2024-06-14 15:13:01,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6365 conditions, 2029 events. 1282/2029 cut-off events. For 4361/4361 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10018 event pairs, 530 based on Foata normal form. 4/2022 useless extension candidates. Maximal degree in co-relation 6344. Up to 1880 conditions per place. [2024-06-14 15:13:01,456 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 52 selfloop transitions, 11 changer transitions 0/69 dead transitions. [2024-06-14 15:13:01,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 69 transitions, 404 flow [2024-06-14 15:13:01,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:13:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:13:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2024-06-14 15:13:01,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-14 15:13:01,458 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 208 flow. Second operand 6 states and 123 transitions. [2024-06-14 15:13:01,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 69 transitions, 404 flow [2024-06-14 15:13:01,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 382 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-14 15:13:01,460 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 242 flow [2024-06-14 15:13:01,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=242, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-06-14 15:13:01,461 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2024-06-14 15:13:01,461 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 242 flow [2024-06-14 15:13:01,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-14 15:13:01,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:13:01,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:13:01,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 15:13:01,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:13:01,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:13:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 20938972, now seen corresponding path program 2 times [2024-06-14 15:13:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:13:01,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369600764] [2024-06-14 15:13:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:13:01,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:13:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:10,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:10,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:10,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369600764] [2024-06-14 15:13:10,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369600764] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:10,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:10,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:13:10,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140884836] [2024-06-14 15:13:10,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:10,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:13:10,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:13:10,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:13:10,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:10,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-14 15:13:10,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:10,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:10,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:13:11,771 INFO L124 PetriNetUnfolderBase]: 1288/2048 cut-off events. [2024-06-14 15:13:11,772 INFO L125 PetriNetUnfolderBase]: For 6011/6019 co-relation queries the response was YES. [2024-06-14 15:13:11,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6918 conditions, 2048 events. 1288/2048 cut-off events. For 6011/6019 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10180 event pairs, 528 based on Foata normal form. 12/2052 useless extension candidates. Maximal degree in co-relation 6896. Up to 1862 conditions per place. [2024-06-14 15:13:11,781 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 48 selfloop transitions, 16 changer transitions 0/70 dead transitions. [2024-06-14 15:13:11,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 70 transitions, 442 flow [2024-06-14 15:13:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:13:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:13:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2024-06-14 15:13:11,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-14 15:13:11,784 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 242 flow. Second operand 6 states and 123 transitions. [2024-06-14 15:13:11,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 70 transitions, 442 flow [2024-06-14 15:13:11,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 412 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-14 15:13:11,787 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 284 flow [2024-06-14 15:13:11,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=284, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-06-14 15:13:11,787 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2024-06-14 15:13:11,788 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 284 flow [2024-06-14 15:13:11,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-06-14 15:13:11,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:13:11,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:13:11,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 15:13:11,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:13:11,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:13:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1847107370, now seen corresponding path program 1 times [2024-06-14 15:13:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:13:11,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567880369] [2024-06-14 15:13:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:13:11,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:13:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:22,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:22,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567880369] [2024-06-14 15:13:22,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567880369] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:22,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:22,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:13:22,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100464314] [2024-06-14 15:13:22,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:22,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:13:22,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:22,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:13:22,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:13:22,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:22,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 284 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:13:22,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:22,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:22,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:13:23,373 INFO L124 PetriNetUnfolderBase]: 1379/2258 cut-off events. [2024-06-14 15:13:23,374 INFO L125 PetriNetUnfolderBase]: For 7831/7831 co-relation queries the response was YES. [2024-06-14 15:13:23,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7859 conditions, 2258 events. 1379/2258 cut-off events. For 7831/7831 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 11657 event pairs, 540 based on Foata normal form. 2/2249 useless extension candidates. Maximal degree in co-relation 7836. Up to 2030 conditions per place. [2024-06-14 15:13:23,387 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 55 selfloop transitions, 11 changer transitions 0/72 dead transitions. [2024-06-14 15:13:23,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 72 transitions, 480 flow [2024-06-14 15:13:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:13:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:13:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-06-14 15:13:23,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-14 15:13:23,388 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 284 flow. Second operand 6 states and 120 transitions. [2024-06-14 15:13:23,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 72 transitions, 480 flow [2024-06-14 15:13:23,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 434 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-14 15:13:23,392 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 298 flow [2024-06-14 15:13:23,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2024-06-14 15:13:23,393 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 16 predicate places. [2024-06-14 15:13:23,393 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 298 flow [2024-06-14 15:13:23,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:13:23,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:13:23,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:13:23,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 15:13:23,394 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:13:23,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:13:23,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1603250192, now seen corresponding path program 1 times [2024-06-14 15:13:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:13:23,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313195102] [2024-06-14 15:13:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:13:23,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:13:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:32,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:32,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313195102] [2024-06-14 15:13:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313195102] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:13:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615185855] [2024-06-14 15:13:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:33,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:13:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:13:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:13:33,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:33,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 298 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:13:33,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:33,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:33,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:13:34,187 INFO L124 PetriNetUnfolderBase]: 1278/2030 cut-off events. [2024-06-14 15:13:34,187 INFO L125 PetriNetUnfolderBase]: For 9198/9198 co-relation queries the response was YES. [2024-06-14 15:13:34,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7703 conditions, 2030 events. 1278/2030 cut-off events. For 9198/9198 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10069 event pairs, 479 based on Foata normal form. 2/2022 useless extension candidates. Maximal degree in co-relation 7679. Up to 1869 conditions per place. [2024-06-14 15:13:34,195 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 64 selfloop transitions, 14 changer transitions 0/84 dead transitions. [2024-06-14 15:13:34,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 552 flow [2024-06-14 15:13:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:13:34,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:13:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2024-06-14 15:13:34,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750830564784053 [2024-06-14 15:13:34,197 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 298 flow. Second operand 7 states and 143 transitions. [2024-06-14 15:13:34,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 552 flow [2024-06-14 15:13:34,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 516 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-14 15:13:34,201 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 338 flow [2024-06-14 15:13:34,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2024-06-14 15:13:34,201 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 19 predicate places. [2024-06-14 15:13:34,202 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 338 flow [2024-06-14 15:13:34,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:13:34,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:13:34,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:13:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 15:13:34,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:13:34,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:13:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2009151036, now seen corresponding path program 1 times [2024-06-14 15:13:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:13:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193718449] [2024-06-14 15:13:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:13:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:13:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:44,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:44,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193718449] [2024-06-14 15:13:44,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193718449] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:44,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:44,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:13:44,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624344651] [2024-06-14 15:13:44,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:44,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:13:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:44,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:13:44,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:13:44,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:44,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 338 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:13:44,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:44,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:44,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:13:45,952 INFO L124 PetriNetUnfolderBase]: 1361/2224 cut-off events. [2024-06-14 15:13:45,953 INFO L125 PetriNetUnfolderBase]: For 11639/11639 co-relation queries the response was YES. [2024-06-14 15:13:45,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8475 conditions, 2224 events. 1361/2224 cut-off events. For 11639/11639 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11420 event pairs, 500 based on Foata normal form. 4/2213 useless extension candidates. Maximal degree in co-relation 8450. Up to 1986 conditions per place. [2024-06-14 15:13:45,962 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 63 selfloop transitions, 13 changer transitions 0/82 dead transitions. [2024-06-14 15:13:45,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 570 flow [2024-06-14 15:13:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:13:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:13:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-06-14 15:13:45,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584717607973422 [2024-06-14 15:13:45,964 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 338 flow. Second operand 7 states and 138 transitions. [2024-06-14 15:13:45,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 570 flow [2024-06-14 15:13:45,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 82 transitions, 518 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-14 15:13:45,968 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 351 flow [2024-06-14 15:13:45,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=351, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2024-06-14 15:13:45,969 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2024-06-14 15:13:45,970 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 351 flow [2024-06-14 15:13:45,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:13:45,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:13:45,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:13:45,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-14 15:13:45,970 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:13:45,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:13:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2039861154, now seen corresponding path program 1 times [2024-06-14 15:13:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:13:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888905944] [2024-06-14 15:13:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:13:45,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:13:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:13:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:13:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:13:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888905944] [2024-06-14 15:13:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888905944] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:13:59,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:13:59,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:13:59,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017975411] [2024-06-14 15:13:59,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:13:59,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:13:59,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:13:59,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:13:59,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:13:59,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:13:59,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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) [2024-06-14 15:13:59,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:13:59,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:13:59,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:14:00,595 INFO L124 PetriNetUnfolderBase]: 1358/2220 cut-off events. [2024-06-14 15:14:00,595 INFO L125 PetriNetUnfolderBase]: For 13598/13598 co-relation queries the response was YES. [2024-06-14 15:14:00,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8708 conditions, 2220 events. 1358/2220 cut-off events. For 13598/13598 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11408 event pairs, 539 based on Foata normal form. 1/2206 useless extension candidates. Maximal degree in co-relation 8682. Up to 2024 conditions per place. [2024-06-14 15:14:00,605 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 58 selfloop transitions, 8 changer transitions 0/72 dead transitions. [2024-06-14 15:14:00,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 525 flow [2024-06-14 15:14:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:14:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:14:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-06-14 15:14:00,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4511627906976744 [2024-06-14 15:14:00,621 INFO L175 Difference]: Start difference. First operand has 65 places, 61 transitions, 351 flow. Second operand 5 states and 97 transitions. [2024-06-14 15:14:00,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 525 flow [2024-06-14 15:14:00,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 478 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-06-14 15:14:00,628 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 354 flow [2024-06-14 15:14:00,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-06-14 15:14:00,629 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2024-06-14 15:14:00,629 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 354 flow [2024-06-14 15:14:00,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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) [2024-06-14 15:14:00,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:14:00,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:14:00,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-14 15:14:00,629 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:14:00,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:14:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1455581673, now seen corresponding path program 1 times [2024-06-14 15:14:00,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:14:00,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360717605] [2024-06-14 15:14:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:14:00,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:14:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:14:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:14:11,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:14:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360717605] [2024-06-14 15:14:11,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360717605] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:14:11,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:14:11,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:14:11,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889616217] [2024-06-14 15:14:11,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:14:11,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:14:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:14:11,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:14:11,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:14:11,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:14:11,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 354 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:11,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:14:11,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:14:11,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:14:12,832 INFO L124 PetriNetUnfolderBase]: 1576/2443 cut-off events. [2024-06-14 15:14:12,832 INFO L125 PetriNetUnfolderBase]: For 18351/18351 co-relation queries the response was YES. [2024-06-14 15:14:12,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10254 conditions, 2443 events. 1576/2443 cut-off events. For 18351/18351 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 11970 event pairs, 635 based on Foata normal form. 2/2444 useless extension candidates. Maximal degree in co-relation 10227. Up to 2298 conditions per place. [2024-06-14 15:14:12,842 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 74 selfloop transitions, 14 changer transitions 0/93 dead transitions. [2024-06-14 15:14:12,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 93 transitions, 632 flow [2024-06-14 15:14:12,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:14:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:14:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-14 15:14:12,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-14 15:14:12,844 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 354 flow. Second operand 7 states and 135 transitions. [2024-06-14 15:14:12,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 93 transitions, 632 flow [2024-06-14 15:14:12,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 93 transitions, 604 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-14 15:14:12,850 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 420 flow [2024-06-14 15:14:12,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=420, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2024-06-14 15:14:12,850 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 26 predicate places. [2024-06-14 15:14:12,851 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 420 flow [2024-06-14 15:14:12,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:12,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:14:12,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:14:12,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-14 15:14:12,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:14:12,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:14:12,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1248928233, now seen corresponding path program 2 times [2024-06-14 15:14:12,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:14:12,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713318619] [2024-06-14 15:14:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:14:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:14:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:14:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:14:23,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:14:23,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713318619] [2024-06-14 15:14:23,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713318619] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:14:23,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:14:23,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:14:23,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872989929] [2024-06-14 15:14:23,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:14:23,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:14:23,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:14:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:14:23,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:14:23,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:14:23,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 420 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:23,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:14:23,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:14:23,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:14:24,481 INFO L124 PetriNetUnfolderBase]: 1587/2474 cut-off events. [2024-06-14 15:14:24,481 INFO L125 PetriNetUnfolderBase]: For 21395/21403 co-relation queries the response was YES. [2024-06-14 15:14:24,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10929 conditions, 2474 events. 1587/2474 cut-off events. For 21395/21403 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12118 event pairs, 570 based on Foata normal form. 10/2483 useless extension candidates. Maximal degree in co-relation 10900. Up to 2273 conditions per place. [2024-06-14 15:14:24,494 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 73 selfloop transitions, 19 changer transitions 0/97 dead transitions. [2024-06-14 15:14:24,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 708 flow [2024-06-14 15:14:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:14:24,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:14:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-14 15:14:24,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-14 15:14:24,496 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 420 flow. Second operand 7 states and 135 transitions. [2024-06-14 15:14:24,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 708 flow [2024-06-14 15:14:24,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 97 transitions, 670 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-06-14 15:14:24,504 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 494 flow [2024-06-14 15:14:24,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=494, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-06-14 15:14:24,505 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 31 predicate places. [2024-06-14 15:14:24,505 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 494 flow [2024-06-14 15:14:24,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:24,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:14:24,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:14:24,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-14 15:14:24,506 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:14:24,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:14:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2140836029, now seen corresponding path program 3 times [2024-06-14 15:14:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:14:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221553458] [2024-06-14 15:14:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:14:24,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:14:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:14:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:14:34,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:14:34,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221553458] [2024-06-14 15:14:34,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221553458] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:14:34,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:14:34,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:14:34,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2281270] [2024-06-14 15:14:34,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:14:34,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:14:34,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:14:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:14:34,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:14:35,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:14:35,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 494 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:35,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:14:35,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:14:35,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:14:36,437 INFO L124 PetriNetUnfolderBase]: 1582/2467 cut-off events. [2024-06-14 15:14:36,437 INFO L125 PetriNetUnfolderBase]: For 24707/24715 co-relation queries the response was YES. [2024-06-14 15:14:36,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11454 conditions, 2467 events. 1582/2467 cut-off events. For 24707/24715 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12062 event pairs, 575 based on Foata normal form. 10/2476 useless extension candidates. Maximal degree in co-relation 11422. Up to 2239 conditions per place. [2024-06-14 15:14:36,450 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 67 selfloop transitions, 27 changer transitions 0/99 dead transitions. [2024-06-14 15:14:36,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 774 flow [2024-06-14 15:14:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:14:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:14:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-14 15:14:36,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-14 15:14:36,452 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 494 flow. Second operand 7 states and 135 transitions. [2024-06-14 15:14:36,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 774 flow [2024-06-14 15:14:36,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 99 transitions, 720 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-06-14 15:14:36,461 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 550 flow [2024-06-14 15:14:36,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=550, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-06-14 15:14:36,461 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 35 predicate places. [2024-06-14 15:14:36,462 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 550 flow [2024-06-14 15:14:36,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 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) [2024-06-14 15:14:36,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:14:36,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:14:36,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-14 15:14:36,462 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:14:36,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:14:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1188815514, now seen corresponding path program 1 times [2024-06-14 15:14:36,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:14:36,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479271187] [2024-06-14 15:14:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:14:36,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:14:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:14:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:14:51,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:14:51,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479271187] [2024-06-14 15:14:51,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479271187] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:14:51,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:14:51,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:14:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270734110] [2024-06-14 15:14:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:14:51,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:14:51,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:14:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:14:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:14:51,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:14:51,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 550 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:14:51,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:14:51,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:14:51,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:14:52,460 INFO L124 PetriNetUnfolderBase]: 1579/2475 cut-off events. [2024-06-14 15:14:52,460 INFO L125 PetriNetUnfolderBase]: For 27736/27736 co-relation queries the response was YES. [2024-06-14 15:14:52,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11972 conditions, 2475 events. 1579/2475 cut-off events. For 27736/27736 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 12210 event pairs, 613 based on Foata normal form. 1/2475 useless extension candidates. Maximal degree in co-relation 11938. Up to 2339 conditions per place. [2024-06-14 15:14:52,472 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 75 selfloop transitions, 11 changer transitions 0/91 dead transitions. [2024-06-14 15:14:52,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 770 flow [2024-06-14 15:14:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:14:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:14:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-06-14 15:14:52,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41472868217054265 [2024-06-14 15:14:52,474 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 550 flow. Second operand 6 states and 107 transitions. [2024-06-14 15:14:52,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 770 flow [2024-06-14 15:14:52,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 91 transitions, 682 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-06-14 15:14:52,485 INFO L231 Difference]: Finished difference. Result has 80 places, 82 transitions, 522 flow [2024-06-14 15:14:52,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=80, PETRI_TRANSITIONS=82} [2024-06-14 15:14:52,486 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 36 predicate places. [2024-06-14 15:14:52,487 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 522 flow [2024-06-14 15:14:52,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:14:52,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:14:52,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:14:52,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-14 15:14:52,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:14:52,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:14:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 739800139, now seen corresponding path program 1 times [2024-06-14 15:14:52,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:14:52,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819836684] [2024-06-14 15:14:52,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:14:52,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:14:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:15:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:15:01,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:15:01,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819836684] [2024-06-14 15:15:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819836684] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:15:01,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:15:01,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:15:01,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972366314] [2024-06-14 15:15:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:15:01,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:15:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:15:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:15:01,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:15:01,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:15:01,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 522 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:01,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:15:01,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:15:01,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:15:03,151 INFO L124 PetriNetUnfolderBase]: 1353/2126 cut-off events. [2024-06-14 15:15:03,152 INFO L125 PetriNetUnfolderBase]: For 31226/31226 co-relation queries the response was YES. [2024-06-14 15:15:03,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11290 conditions, 2126 events. 1353/2126 cut-off events. For 31226/31226 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10618 event pairs, 337 based on Foata normal form. 4/2129 useless extension candidates. Maximal degree in co-relation 11255. Up to 1913 conditions per place. [2024-06-14 15:15:03,162 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 93 selfloop transitions, 15 changer transitions 0/115 dead transitions. [2024-06-14 15:15:03,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 115 transitions, 854 flow [2024-06-14 15:15:03,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:15:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:15:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-14 15:15:03,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-14 15:15:03,164 INFO L175 Difference]: Start difference. First operand has 80 places, 82 transitions, 522 flow. Second operand 8 states and 161 transitions. [2024-06-14 15:15:03,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 115 transitions, 854 flow [2024-06-14 15:15:03,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 115 transitions, 816 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-14 15:15:03,171 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 563 flow [2024-06-14 15:15:03,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=563, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2024-06-14 15:15:03,172 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 40 predicate places. [2024-06-14 15:15:03,172 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 563 flow [2024-06-14 15:15:03,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:03,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:03,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:15:03,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-14 15:15:03,173 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:03,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:03,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1169855727, now seen corresponding path program 2 times [2024-06-14 15:15:03,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:03,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376647223] [2024-06-14 15:15:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:15:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:15:13,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:15:13,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376647223] [2024-06-14 15:15:13,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376647223] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:15:13,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:15:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:15:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557142840] [2024-06-14 15:15:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:15:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:15:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:15:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:15:13,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:15:14,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:15:14,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 563 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:14,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:15:14,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:15:14,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:15:15,248 INFO L124 PetriNetUnfolderBase]: 1370/2153 cut-off events. [2024-06-14 15:15:15,248 INFO L125 PetriNetUnfolderBase]: For 35475/35475 co-relation queries the response was YES. [2024-06-14 15:15:15,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11839 conditions, 2153 events. 1370/2153 cut-off events. For 35475/35475 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10719 event pairs, 453 based on Foata normal form. 4/2156 useless extension candidates. Maximal degree in co-relation 11803. Up to 1966 conditions per place. [2024-06-14 15:15:15,262 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 93 selfloop transitions, 16 changer transitions 0/116 dead transitions. [2024-06-14 15:15:15,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 116 transitions, 899 flow [2024-06-14 15:15:15,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:15:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:15:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-14 15:15:15,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-14 15:15:15,266 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 563 flow. Second operand 8 states and 161 transitions. [2024-06-14 15:15:15,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 116 transitions, 899 flow [2024-06-14 15:15:15,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 838 flow, removed 17 selfloop flow, removed 6 redundant places. [2024-06-14 15:15:15,278 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 587 flow [2024-06-14 15:15:15,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=587, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2024-06-14 15:15:15,279 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 42 predicate places. [2024-06-14 15:15:15,279 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 587 flow [2024-06-14 15:15:15,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:15,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:15,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:15:15,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-14 15:15:15,280 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:15,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1169860687, now seen corresponding path program 1 times [2024-06-14 15:15:15,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:15,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439068826] [2024-06-14 15:15:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:15,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:15:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:15:26,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:15:26,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439068826] [2024-06-14 15:15:26,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439068826] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:15:26,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:15:26,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:15:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613875800] [2024-06-14 15:15:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:15:26,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:15:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:15:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:15:26,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:15:26,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:15:26,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 587 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:15:26,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:15:26,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:15:26,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:15:27,942 INFO L124 PetriNetUnfolderBase]: 1721/2657 cut-off events. [2024-06-14 15:15:27,943 INFO L125 PetriNetUnfolderBase]: For 46611/46623 co-relation queries the response was YES. [2024-06-14 15:15:27,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14423 conditions, 2657 events. 1721/2657 cut-off events. For 46611/46623 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 13135 event pairs, 619 based on Foata normal form. 2/2653 useless extension candidates. Maximal degree in co-relation 14386. Up to 2476 conditions per place. [2024-06-14 15:15:27,955 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 96 selfloop transitions, 17 changer transitions 0/119 dead transitions. [2024-06-14 15:15:27,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 119 transitions, 941 flow [2024-06-14 15:15:27,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:15:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:15:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-14 15:15:27,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-14 15:15:27,958 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 587 flow. Second operand 8 states and 155 transitions. [2024-06-14 15:15:27,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 119 transitions, 941 flow [2024-06-14 15:15:27,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 119 transitions, 874 flow, removed 19 selfloop flow, removed 6 redundant places. [2024-06-14 15:15:27,986 INFO L231 Difference]: Finished difference. Result has 88 places, 89 transitions, 620 flow [2024-06-14 15:15:27,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=620, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2024-06-14 15:15:27,987 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 44 predicate places. [2024-06-14 15:15:27,998 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 620 flow [2024-06-14 15:15:27,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:15:27,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:27,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:15:28,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-14 15:15:28,000 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:28,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 233812769, now seen corresponding path program 3 times [2024-06-14 15:15:28,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:28,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784569550] [2024-06-14 15:15:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:28,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:15:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:15:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:15:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784569550] [2024-06-14 15:15:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784569550] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:15:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:15:38,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:15:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831979516] [2024-06-14 15:15:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:15:38,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:15:38,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:15:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:15:38,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:15:38,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:15:38,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 620 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:38,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:15:38,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:15:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:15:39,658 INFO L124 PetriNetUnfolderBase]: 1398/2184 cut-off events. [2024-06-14 15:15:39,658 INFO L125 PetriNetUnfolderBase]: For 43764/43764 co-relation queries the response was YES. [2024-06-14 15:15:39,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12744 conditions, 2184 events. 1398/2184 cut-off events. For 43764/43764 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10821 event pairs, 432 based on Foata normal form. 4/2181 useless extension candidates. Maximal degree in co-relation 12706. Up to 2015 conditions per place. [2024-06-14 15:15:39,670 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 95 selfloop transitions, 16 changer transitions 0/118 dead transitions. [2024-06-14 15:15:39,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 118 transitions, 958 flow [2024-06-14 15:15:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:15:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:15:39,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-14 15:15:39,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45930232558139533 [2024-06-14 15:15:39,674 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 620 flow. Second operand 8 states and 158 transitions. [2024-06-14 15:15:39,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 118 transitions, 958 flow [2024-06-14 15:15:39,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 118 transitions, 882 flow, removed 23 selfloop flow, removed 6 redundant places. [2024-06-14 15:15:39,689 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 635 flow [2024-06-14 15:15:39,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=635, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2024-06-14 15:15:39,690 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 46 predicate places. [2024-06-14 15:15:39,690 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 635 flow [2024-06-14 15:15:39,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:15:39,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:39,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:15:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-14 15:15:39,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:39,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 233817729, now seen corresponding path program 2 times [2024-06-14 15:15:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:39,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420118703] [2024-06-14 15:15:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:15:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:15:49,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:15:49,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420118703] [2024-06-14 15:15:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420118703] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:15:49,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:15:49,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:15:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777135200] [2024-06-14 15:15:49,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:15:49,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:15:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:15:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:15:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:15:50,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:15:50,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 635 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:15:50,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:15:50,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:15:50,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:15:51,704 INFO L124 PetriNetUnfolderBase]: 1798/2770 cut-off events. [2024-06-14 15:15:51,705 INFO L125 PetriNetUnfolderBase]: For 58191/58191 co-relation queries the response was YES. [2024-06-14 15:15:51,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15801 conditions, 2770 events. 1798/2770 cut-off events. For 58191/58191 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 13708 event pairs, 628 based on Foata normal form. 2/2768 useless extension candidates. Maximal degree in co-relation 15762. Up to 2580 conditions per place. [2024-06-14 15:15:51,721 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 102 selfloop transitions, 21 changer transitions 0/129 dead transitions. [2024-06-14 15:15:51,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 1044 flow [2024-06-14 15:15:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:15:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:15:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-14 15:15:51,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392764857881137 [2024-06-14 15:15:51,724 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 635 flow. Second operand 9 states and 170 transitions. [2024-06-14 15:15:51,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 1044 flow [2024-06-14 15:15:51,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 129 transitions, 952 flow, removed 26 selfloop flow, removed 7 redundant places. [2024-06-14 15:15:51,743 INFO L231 Difference]: Finished difference. Result has 93 places, 98 transitions, 691 flow [2024-06-14 15:15:51,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=691, PETRI_PLACES=93, PETRI_TRANSITIONS=98} [2024-06-14 15:15:51,744 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 49 predicate places. [2024-06-14 15:15:51,744 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 98 transitions, 691 flow [2024-06-14 15:15:51,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:15:51,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:51,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:15:51,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-14 15:15:51,745 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:51,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1285324837, now seen corresponding path program 3 times [2024-06-14 15:15:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289004406] [2024-06-14 15:15:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:51,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:02,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:02,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289004406] [2024-06-14 15:16:02,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289004406] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:02,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:02,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:16:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944483303] [2024-06-14 15:16:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:02,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:16:02,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:16:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:16:03,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:03,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 98 transitions, 691 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:03,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:03,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:03,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:04,542 INFO L124 PetriNetUnfolderBase]: 1809/2791 cut-off events. [2024-06-14 15:16:04,542 INFO L125 PetriNetUnfolderBase]: For 63393/63393 co-relation queries the response was YES. [2024-06-14 15:16:04,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16457 conditions, 2791 events. 1809/2791 cut-off events. For 63393/63393 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 13878 event pairs, 628 based on Foata normal form. 2/2789 useless extension candidates. Maximal degree in co-relation 16417. Up to 2587 conditions per place. [2024-06-14 15:16:04,557 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 99 selfloop transitions, 23 changer transitions 0/128 dead transitions. [2024-06-14 15:16:04,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 128 transitions, 1071 flow [2024-06-14 15:16:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:16:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:16:04,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2024-06-14 15:16:04,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44476744186046513 [2024-06-14 15:16:04,561 INFO L175 Difference]: Start difference. First operand has 93 places, 98 transitions, 691 flow. Second operand 8 states and 153 transitions. [2024-06-14 15:16:04,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 128 transitions, 1071 flow [2024-06-14 15:16:04,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 128 transitions, 981 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-14 15:16:04,578 INFO L231 Difference]: Finished difference. Result has 95 places, 101 transitions, 731 flow [2024-06-14 15:16:04,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=731, PETRI_PLACES=95, PETRI_TRANSITIONS=101} [2024-06-14 15:16:04,578 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 51 predicate places. [2024-06-14 15:16:04,579 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 101 transitions, 731 flow [2024-06-14 15:16:04,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:04,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:04,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:04,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-14 15:16:04,579 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:04,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash 233997467, now seen corresponding path program 1 times [2024-06-14 15:16:04,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:04,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905021601] [2024-06-14 15:16:04,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:04,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:15,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:15,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905021601] [2024-06-14 15:16:15,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905021601] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:15,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:15,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:16:15,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877012637] [2024-06-14 15:16:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:15,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:16:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:16:15,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:16:15,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:15,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 101 transitions, 731 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:15,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:15,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:15,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:17,223 INFO L124 PetriNetUnfolderBase]: 1826/2818 cut-off events. [2024-06-14 15:16:17,223 INFO L125 PetriNetUnfolderBase]: For 70772/70772 co-relation queries the response was YES. [2024-06-14 15:16:17,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17118 conditions, 2818 events. 1826/2818 cut-off events. For 70772/70772 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 13979 event pairs, 628 based on Foata normal form. 4/2818 useless extension candidates. Maximal degree in co-relation 17077. Up to 2632 conditions per place. [2024-06-14 15:16:17,238 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 109 selfloop transitions, 16 changer transitions 0/131 dead transitions. [2024-06-14 15:16:17,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 131 transitions, 1103 flow [2024-06-14 15:16:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:16:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:16:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-14 15:16:17,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-14 15:16:17,241 INFO L175 Difference]: Start difference. First operand has 95 places, 101 transitions, 731 flow. Second operand 8 states and 152 transitions. [2024-06-14 15:16:17,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 131 transitions, 1103 flow [2024-06-14 15:16:17,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 131 transitions, 999 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-06-14 15:16:17,262 INFO L231 Difference]: Finished difference. Result has 97 places, 103 transitions, 720 flow [2024-06-14 15:16:17,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=720, PETRI_PLACES=97, PETRI_TRANSITIONS=103} [2024-06-14 15:16:17,262 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 53 predicate places. [2024-06-14 15:16:17,262 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 103 transitions, 720 flow [2024-06-14 15:16:17,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:17,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:17,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:17,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-14 15:16:17,263 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:17,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:17,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1285331347, now seen corresponding path program 4 times [2024-06-14 15:16:17,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:17,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651553783] [2024-06-14 15:16:17,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:17,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:28,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651553783] [2024-06-14 15:16:28,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651553783] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:28,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:28,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:16:28,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854871331] [2024-06-14 15:16:28,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:28,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:16:28,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:16:28,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:16:28,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:28,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 103 transitions, 720 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:28,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:28,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:28,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:30,065 INFO L124 PetriNetUnfolderBase]: 1837/2834 cut-off events. [2024-06-14 15:16:30,066 INFO L125 PetriNetUnfolderBase]: For 69660/69660 co-relation queries the response was YES. [2024-06-14 15:16:30,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17046 conditions, 2834 events. 1837/2834 cut-off events. For 69660/69660 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 14091 event pairs, 628 based on Foata normal form. 2/2832 useless extension candidates. Maximal degree in co-relation 17004. Up to 2612 conditions per place. [2024-06-14 15:16:30,083 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 99 selfloop transitions, 28 changer transitions 0/133 dead transitions. [2024-06-14 15:16:30,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 133 transitions, 1112 flow [2024-06-14 15:16:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:16:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:16:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-14 15:16:30,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-14 15:16:30,086 INFO L175 Difference]: Start difference. First operand has 97 places, 103 transitions, 720 flow. Second operand 8 states and 154 transitions. [2024-06-14 15:16:30,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 133 transitions, 1112 flow [2024-06-14 15:16:30,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 133 transitions, 1039 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-06-14 15:16:30,107 INFO L231 Difference]: Finished difference. Result has 99 places, 106 transitions, 785 flow [2024-06-14 15:16:30,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=785, PETRI_PLACES=99, PETRI_TRANSITIONS=106} [2024-06-14 15:16:30,108 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 55 predicate places. [2024-06-14 15:16:30,108 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 106 transitions, 785 flow [2024-06-14 15:16:30,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:16:30,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:30,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:30,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-14 15:16:30,109 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:30,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1812864579, now seen corresponding path program 1 times [2024-06-14 15:16:30,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:30,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866352749] [2024-06-14 15:16:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:30,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866352749] [2024-06-14 15:16:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866352749] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:45,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:45,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:16:45,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245465451] [2024-06-14 15:16:45,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:45,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:16:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:45,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:16:45,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:16:45,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:45,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 106 transitions, 785 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:45,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:45,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:45,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:46,566 INFO L124 PetriNetUnfolderBase]: 1854/2857 cut-off events. [2024-06-14 15:16:46,566 INFO L125 PetriNetUnfolderBase]: For 75409/75409 co-relation queries the response was YES. [2024-06-14 15:16:46,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17607 conditions, 2857 events. 1854/2857 cut-off events. For 75409/75409 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 14143 event pairs, 611 based on Foata normal form. 2/2858 useless extension candidates. Maximal degree in co-relation 17564. Up to 2670 conditions per place. [2024-06-14 15:16:46,582 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 106 selfloop transitions, 18 changer transitions 0/130 dead transitions. [2024-06-14 15:16:46,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 130 transitions, 1209 flow [2024-06-14 15:16:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:16:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:16:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-06-14 15:16:46,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-14 15:16:46,585 INFO L175 Difference]: Start difference. First operand has 99 places, 106 transitions, 785 flow. Second operand 6 states and 118 transitions. [2024-06-14 15:16:46,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 130 transitions, 1209 flow [2024-06-14 15:16:46,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 130 transitions, 1095 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-06-14 15:16:46,606 INFO L231 Difference]: Finished difference. Result has 99 places, 112 transitions, 788 flow [2024-06-14 15:16:46,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=99, PETRI_TRANSITIONS=112} [2024-06-14 15:16:46,607 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 55 predicate places. [2024-06-14 15:16:46,607 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 112 transitions, 788 flow [2024-06-14 15:16:46,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:46,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:46,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-14 15:16:46,608 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:46,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2117200963, now seen corresponding path program 4 times [2024-06-14 15:16:46,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:46,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549236207] [2024-06-14 15:16:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:46,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:58,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:58,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:58,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549236207] [2024-06-14 15:16:58,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549236207] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:58,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:58,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:16:58,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219439593] [2024-06-14 15:16:58,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:58,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:16:58,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:58,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:16:58,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:16:58,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:16:58,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 112 transitions, 788 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:16:58,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:58,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:16:58,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:59,557 INFO L124 PetriNetUnfolderBase]: 1630/2538 cut-off events. [2024-06-14 15:16:59,558 INFO L125 PetriNetUnfolderBase]: For 75465/75473 co-relation queries the response was YES. [2024-06-14 15:16:59,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16586 conditions, 2538 events. 1630/2538 cut-off events. For 75465/75473 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 12825 event pairs, 482 based on Foata normal form. 12/2543 useless extension candidates. Maximal degree in co-relation 16542. Up to 2300 conditions per place. [2024-06-14 15:16:59,576 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 104 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-06-14 15:16:59,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 1166 flow [2024-06-14 15:16:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:16:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:16:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-14 15:16:59,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45930232558139533 [2024-06-14 15:16:59,579 INFO L175 Difference]: Start difference. First operand has 99 places, 112 transitions, 788 flow. Second operand 8 states and 158 transitions. [2024-06-14 15:16:59,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 1166 flow [2024-06-14 15:16:59,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 138 transitions, 1132 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-06-14 15:16:59,608 INFO L231 Difference]: Finished difference. Result has 105 places, 114 transitions, 875 flow [2024-06-14 15:16:59,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=875, PETRI_PLACES=105, PETRI_TRANSITIONS=114} [2024-06-14 15:16:59,609 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 61 predicate places. [2024-06-14 15:16:59,609 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 114 transitions, 875 flow [2024-06-14 15:16:59,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2024-06-14 15:16:59,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:59,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:59,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-14 15:16:59,610 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:59,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2117205923, now seen corresponding path program 5 times [2024-06-14 15:16:59,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:59,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873463669] [2024-06-14 15:16:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:10,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:10,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873463669] [2024-06-14 15:17:10,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873463669] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:10,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:10,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:17:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358305010] [2024-06-14 15:17:10,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:10,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:17:10,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:17:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:17:10,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:17:10,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 114 transitions, 875 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:10,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:10,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:17:10,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:11,911 INFO L124 PetriNetUnfolderBase]: 1860/2867 cut-off events. [2024-06-14 15:17:11,911 INFO L125 PetriNetUnfolderBase]: For 86798/86806 co-relation queries the response was YES. [2024-06-14 15:17:11,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18363 conditions, 2867 events. 1860/2867 cut-off events. For 86798/86806 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14222 event pairs, 541 based on Foata normal form. 10/2876 useless extension candidates. Maximal degree in co-relation 18317. Up to 2591 conditions per place. [2024-06-14 15:17:11,927 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 113 selfloop transitions, 31 changer transitions 0/150 dead transitions. [2024-06-14 15:17:11,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 150 transitions, 1344 flow [2024-06-14 15:17:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:17:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:17:11,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-14 15:17:11,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-14 15:17:11,930 INFO L175 Difference]: Start difference. First operand has 105 places, 114 transitions, 875 flow. Second operand 9 states and 171 transitions. [2024-06-14 15:17:11,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 150 transitions, 1344 flow [2024-06-14 15:17:11,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 150 transitions, 1222 flow, removed 31 selfloop flow, removed 7 redundant places. [2024-06-14 15:17:11,957 INFO L231 Difference]: Finished difference. Result has 108 places, 121 transitions, 941 flow [2024-06-14 15:17:11,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=941, PETRI_PLACES=108, PETRI_TRANSITIONS=121} [2024-06-14 15:17:11,957 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 64 predicate places. [2024-06-14 15:17:11,958 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 121 transitions, 941 flow [2024-06-14 15:17:11,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:11,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:11,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:11,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-14 15:17:11,958 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:11,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:11,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2123635013, now seen corresponding path program 6 times [2024-06-14 15:17:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:11,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006040526] [2024-06-14 15:17:11,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:11,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:22,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:22,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006040526] [2024-06-14 15:17:22,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006040526] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:22,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:22,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:17:22,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180192872] [2024-06-14 15:17:22,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:22,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:17:22,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:17:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:17:23,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:17:23,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 121 transitions, 941 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:23,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:23,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:17:23,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:24,368 INFO L124 PetriNetUnfolderBase]: 1871/2888 cut-off events. [2024-06-14 15:17:24,368 INFO L125 PetriNetUnfolderBase]: For 93290/93298 co-relation queries the response was YES. [2024-06-14 15:17:24,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18979 conditions, 2888 events. 1871/2888 cut-off events. For 93290/93298 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14372 event pairs, 541 based on Foata normal form. 10/2897 useless extension candidates. Maximal degree in co-relation 18932. Up to 2598 conditions per place. [2024-06-14 15:17:24,384 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 110 selfloop transitions, 33 changer transitions 0/149 dead transitions. [2024-06-14 15:17:24,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 149 transitions, 1381 flow [2024-06-14 15:17:24,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-14 15:17:24,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-14 15:17:24,387 INFO L175 Difference]: Start difference. First operand has 108 places, 121 transitions, 941 flow. Second operand 8 states and 154 transitions. [2024-06-14 15:17:24,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 149 transitions, 1381 flow [2024-06-14 15:17:24,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 149 transitions, 1251 flow, removed 37 selfloop flow, removed 6 redundant places. [2024-06-14 15:17:24,414 INFO L231 Difference]: Finished difference. Result has 110 places, 124 transitions, 979 flow [2024-06-14 15:17:24,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=979, PETRI_PLACES=110, PETRI_TRANSITIONS=124} [2024-06-14 15:17:24,414 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 66 predicate places. [2024-06-14 15:17:24,414 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 124 transitions, 979 flow [2024-06-14 15:17:24,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:24,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:24,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:24,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-14 15:17:24,415 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:24,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1030028211, now seen corresponding path program 2 times [2024-06-14 15:17:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766212719] [2024-06-14 15:17:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:34,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766212719] [2024-06-14 15:17:34,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766212719] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:34,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:17:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380594824] [2024-06-14 15:17:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:34,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:17:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:34,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:17:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:17:35,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:17:35,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 124 transitions, 979 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:35,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:35,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:17:35,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:36,438 INFO L124 PetriNetUnfolderBase]: 1888/2915 cut-off events. [2024-06-14 15:17:36,439 INFO L125 PetriNetUnfolderBase]: For 102189/102197 co-relation queries the response was YES. [2024-06-14 15:17:36,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19606 conditions, 2915 events. 1888/2915 cut-off events. For 102189/102197 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 14446 event pairs, 546 based on Foata normal form. 12/2926 useless extension candidates. Maximal degree in co-relation 19558. Up to 2670 conditions per place. [2024-06-14 15:17:36,456 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 125 selfloop transitions, 21 changer transitions 0/152 dead transitions. [2024-06-14 15:17:36,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 152 transitions, 1403 flow [2024-06-14 15:17:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-14 15:17:36,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-14 15:17:36,461 INFO L175 Difference]: Start difference. First operand has 110 places, 124 transitions, 979 flow. Second operand 8 states and 152 transitions. [2024-06-14 15:17:36,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 152 transitions, 1403 flow [2024-06-14 15:17:36,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 152 transitions, 1261 flow, removed 42 selfloop flow, removed 6 redundant places. [2024-06-14 15:17:36,501 INFO L231 Difference]: Finished difference. Result has 112 places, 126 transitions, 950 flow [2024-06-14 15:17:36,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=950, PETRI_PLACES=112, PETRI_TRANSITIONS=126} [2024-06-14 15:17:36,501 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 68 predicate places. [2024-06-14 15:17:36,501 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 126 transitions, 950 flow [2024-06-14 15:17:36,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:36,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:36,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:36,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-14 15:17:36,502 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:36,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash -62068623, now seen corresponding path program 7 times [2024-06-14 15:17:36,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:36,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882600159] [2024-06-14 15:17:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:47,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882600159] [2024-06-14 15:17:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882600159] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:47,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:17:47,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689508768] [2024-06-14 15:17:47,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:47,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:17:47,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:47,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:17:47,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:17:47,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:17:47,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 126 transitions, 950 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:47,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:47,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:17:47,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:49,212 INFO L124 PetriNetUnfolderBase]: 1899/2933 cut-off events. [2024-06-14 15:17:49,212 INFO L125 PetriNetUnfolderBase]: For 100016/100020 co-relation queries the response was YES. [2024-06-14 15:17:49,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19513 conditions, 2933 events. 1899/2933 cut-off events. For 100016/100020 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 14603 event pairs, 524 based on Foata normal form. 3/2934 useless extension candidates. Maximal degree in co-relation 19464. Up to 2590 conditions per place. [2024-06-14 15:17:49,228 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 105 selfloop transitions, 43 changer transitions 0/154 dead transitions. [2024-06-14 15:17:49,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 154 transitions, 1402 flow [2024-06-14 15:17:49,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2024-06-14 15:17:49,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-06-14 15:17:49,231 INFO L175 Difference]: Start difference. First operand has 112 places, 126 transitions, 950 flow. Second operand 8 states and 156 transitions. [2024-06-14 15:17:49,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 154 transitions, 1402 flow [2024-06-14 15:17:49,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 154 transitions, 1309 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-14 15:17:49,264 INFO L231 Difference]: Finished difference. Result has 114 places, 129 transitions, 1043 flow [2024-06-14 15:17:49,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1043, PETRI_PLACES=114, PETRI_TRANSITIONS=129} [2024-06-14 15:17:49,265 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 70 predicate places. [2024-06-14 15:17:49,265 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 129 transitions, 1043 flow [2024-06-14 15:17:49,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:17:49,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:49,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:49,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-14 15:17:49,266 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:49,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:49,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1941109605, now seen corresponding path program 3 times [2024-06-14 15:17:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:49,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710064618] [2024-06-14 15:17:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:00,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710064618] [2024-06-14 15:18:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710064618] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:00,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:18:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26646098] [2024-06-14 15:18:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:00,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:18:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:18:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:18:00,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:18:00,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 129 transitions, 1043 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:00,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:00,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:18:00,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:02,215 INFO L124 PetriNetUnfolderBase]: 2002/3105 cut-off events. [2024-06-14 15:18:02,216 INFO L125 PetriNetUnfolderBase]: For 118970/118978 co-relation queries the response was YES. [2024-06-14 15:18:02,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21757 conditions, 3105 events. 2002/3105 cut-off events. For 118970/118978 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 15809 event pairs, 539 based on Foata normal form. 12/3116 useless extension candidates. Maximal degree in co-relation 21707. Up to 2375 conditions per place. [2024-06-14 15:18:02,236 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 99 selfloop transitions, 60 changer transitions 0/165 dead transitions. [2024-06-14 15:18:02,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 165 transitions, 1713 flow [2024-06-14 15:18:02,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:02,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:02,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 162 transitions. [2024-06-14 15:18:02,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47093023255813954 [2024-06-14 15:18:02,240 INFO L175 Difference]: Start difference. First operand has 114 places, 129 transitions, 1043 flow. Second operand 8 states and 162 transitions. [2024-06-14 15:18:02,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 165 transitions, 1713 flow [2024-06-14 15:18:02,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 165 transitions, 1551 flow, removed 40 selfloop flow, removed 6 redundant places. [2024-06-14 15:18:02,276 INFO L231 Difference]: Finished difference. Result has 116 places, 133 transitions, 1140 flow [2024-06-14 15:18:02,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1140, PETRI_PLACES=116, PETRI_TRANSITIONS=133} [2024-06-14 15:18:02,277 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 72 predicate places. [2024-06-14 15:18:02,277 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 133 transitions, 1140 flow [2024-06-14 15:18:02,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:02,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:02,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:02,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-14 15:18:02,278 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:02,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash -53794413, now seen corresponding path program 8 times [2024-06-14 15:18:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:02,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395797746] [2024-06-14 15:18:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:02,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:12,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:12,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395797746] [2024-06-14 15:18:12,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395797746] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:12,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:12,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:18:12,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634285611] [2024-06-14 15:18:12,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:12,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:18:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:18:12,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:18:13,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:18:13,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 133 transitions, 1140 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:13,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:13,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:18:13,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:14,582 INFO L124 PetriNetUnfolderBase]: 1997/3095 cut-off events. [2024-06-14 15:18:14,582 INFO L125 PetriNetUnfolderBase]: For 126063/126067 co-relation queries the response was YES. [2024-06-14 15:18:14,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22025 conditions, 3095 events. 1997/3095 cut-off events. For 126063/126067 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 15759 event pairs, 560 based on Foata normal form. 3/3096 useless extension candidates. Maximal degree in co-relation 21974. Up to 2680 conditions per place. [2024-06-14 15:18:14,603 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 90 selfloop transitions, 64 changer transitions 0/160 dead transitions. [2024-06-14 15:18:14,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 160 transitions, 1606 flow [2024-06-14 15:18:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:14,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-14 15:18:14,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-14 15:18:14,606 INFO L175 Difference]: Start difference. First operand has 116 places, 133 transitions, 1140 flow. Second operand 8 states and 155 transitions. [2024-06-14 15:18:14,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 160 transitions, 1606 flow [2024-06-14 15:18:14,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 160 transitions, 1456 flow, removed 34 selfloop flow, removed 6 redundant places. [2024-06-14 15:18:14,659 INFO L231 Difference]: Finished difference. Result has 118 places, 136 transitions, 1226 flow [2024-06-14 15:18:14,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1226, PETRI_PLACES=118, PETRI_TRANSITIONS=136} [2024-06-14 15:18:14,660 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 74 predicate places. [2024-06-14 15:18:14,660 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 136 transitions, 1226 flow [2024-06-14 15:18:14,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:14,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:14,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:14,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-14 15:18:14,661 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:14,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:14,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2123872411, now seen corresponding path program 4 times [2024-06-14 15:18:14,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:14,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181275925] [2024-06-14 15:18:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:14,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:25,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181275925] [2024-06-14 15:18:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181275925] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:25,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:25,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:18:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584361360] [2024-06-14 15:18:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:25,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:18:25,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:25,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:18:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:18:25,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:18:25,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 136 transitions, 1226 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:25,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:25,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:18:25,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:27,068 INFO L124 PetriNetUnfolderBase]: 1989/3086 cut-off events. [2024-06-14 15:18:27,068 INFO L125 PetriNetUnfolderBase]: For 132193/132201 co-relation queries the response was YES. [2024-06-14 15:18:27,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22063 conditions, 3086 events. 1989/3086 cut-off events. For 132193/132201 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 15750 event pairs, 580 based on Foata normal form. 12/3097 useless extension candidates. Maximal degree in co-relation 22012. Up to 2809 conditions per place. [2024-06-14 15:18:27,090 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 127 selfloop transitions, 29 changer transitions 0/162 dead transitions. [2024-06-14 15:18:27,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 162 transitions, 1656 flow [2024-06-14 15:18:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-14 15:18:27,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-14 15:18:27,094 INFO L175 Difference]: Start difference. First operand has 118 places, 136 transitions, 1226 flow. Second operand 8 states and 152 transitions. [2024-06-14 15:18:27,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 162 transitions, 1656 flow [2024-06-14 15:18:27,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 162 transitions, 1444 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-06-14 15:18:27,143 INFO L231 Difference]: Finished difference. Result has 120 places, 137 transitions, 1133 flow [2024-06-14 15:18:27,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1133, PETRI_PLACES=120, PETRI_TRANSITIONS=137} [2024-06-14 15:18:27,143 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 76 predicate places. [2024-06-14 15:18:27,144 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 137 transitions, 1133 flow [2024-06-14 15:18:27,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2024-06-14 15:18:27,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:27,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:27,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-14 15:18:27,144 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:27,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1801436739, now seen corresponding path program 2 times [2024-06-14 15:18:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:27,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482854246] [2024-06-14 15:18:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:27,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:42,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:42,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482854246] [2024-06-14 15:18:42,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482854246] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:42,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:42,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:18:42,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705619367] [2024-06-14 15:18:42,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:42,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:18:42,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:42,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:18:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:18:42,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:18:42,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 137 transitions, 1133 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:42,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:42,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:18:42,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:43,783 INFO L124 PetriNetUnfolderBase]: 1983/3075 cut-off events. [2024-06-14 15:18:43,783 INFO L125 PetriNetUnfolderBase]: For 136449/136453 co-relation queries the response was YES. [2024-06-14 15:18:43,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21952 conditions, 3075 events. 1983/3075 cut-off events. For 136449/136453 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 15671 event pairs, 644 based on Foata normal form. 3/3076 useless extension candidates. Maximal degree in co-relation 21900. Up to 2882 conditions per place. [2024-06-14 15:18:43,804 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 124 selfloop transitions, 18 changer transitions 0/148 dead transitions. [2024-06-14 15:18:43,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 148 transitions, 1463 flow [2024-06-14 15:18:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:18:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:18:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-06-14 15:18:43,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43410852713178294 [2024-06-14 15:18:43,806 INFO L175 Difference]: Start difference. First operand has 120 places, 137 transitions, 1133 flow. Second operand 6 states and 112 transitions. [2024-06-14 15:18:43,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 148 transitions, 1463 flow [2024-06-14 15:18:43,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 148 transitions, 1330 flow, removed 39 selfloop flow, removed 6 redundant places. [2024-06-14 15:18:43,861 INFO L231 Difference]: Finished difference. Result has 120 places, 137 transitions, 1042 flow [2024-06-14 15:18:43,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1042, PETRI_PLACES=120, PETRI_TRANSITIONS=137} [2024-06-14 15:18:43,862 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 76 predicate places. [2024-06-14 15:18:43,862 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 137 transitions, 1042 flow [2024-06-14 15:18:43,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:43,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:43,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:43,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-14 15:18:43,863 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:43,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1807144707, now seen corresponding path program 1 times [2024-06-14 15:18:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652763996] [2024-06-14 15:18:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:56,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:56,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652763996] [2024-06-14 15:18:56,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652763996] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:56,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:56,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:18:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709460352] [2024-06-14 15:18:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:56,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:18:56,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:56,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:18:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:18:56,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:18:56,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 137 transitions, 1042 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:56,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:56,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:18:56,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:57,334 INFO L124 PetriNetUnfolderBase]: 1781/2854 cut-off events. [2024-06-14 15:18:57,334 INFO L125 PetriNetUnfolderBase]: For 122581/122581 co-relation queries the response was YES. [2024-06-14 15:18:57,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19724 conditions, 2854 events. 1781/2854 cut-off events. For 122581/122581 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 14998 event pairs, 525 based on Foata normal form. 1/2854 useless extension candidates. Maximal degree in co-relation 19671. Up to 2620 conditions per place. [2024-06-14 15:18:57,354 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 136 selfloop transitions, 15 changer transitions 0/158 dead transitions. [2024-06-14 15:18:57,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 158 transitions, 1501 flow [2024-06-14 15:18:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:18:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:18:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-06-14 15:18:57,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-14 15:18:57,356 INFO L175 Difference]: Start difference. First operand has 120 places, 137 transitions, 1042 flow. Second operand 6 states and 118 transitions. [2024-06-14 15:18:57,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 158 transitions, 1501 flow [2024-06-14 15:18:57,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 158 transitions, 1455 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-06-14 15:18:57,402 INFO L231 Difference]: Finished difference. Result has 122 places, 145 transitions, 1112 flow [2024-06-14 15:18:57,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=122, PETRI_TRANSITIONS=145} [2024-06-14 15:18:57,403 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 78 predicate places. [2024-06-14 15:18:57,403 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 145 transitions, 1112 flow [2024-06-14 15:18:57,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:57,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:57,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:57,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-14 15:18:57,404 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:57,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:57,404 INFO L85 PathProgramCache]: Analyzing trace with hash -828158817, now seen corresponding path program 2 times [2024-06-14 15:18:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:57,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180791000] [2024-06-14 15:18:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:57,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:09,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180791000] [2024-06-14 15:19:09,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180791000] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:09,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:09,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:19:09,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272060649] [2024-06-14 15:19:09,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:09,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:19:09,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:09,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:19:09,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:19:09,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:19:09,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 145 transitions, 1112 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:09,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:09,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:19:09,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:10,827 INFO L124 PetriNetUnfolderBase]: 1778/2850 cut-off events. [2024-06-14 15:19:10,827 INFO L125 PetriNetUnfolderBase]: For 128802/128802 co-relation queries the response was YES. [2024-06-14 15:19:10,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20182 conditions, 2850 events. 1778/2850 cut-off events. For 128802/128802 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15004 event pairs, 524 based on Foata normal form. 1/2850 useless extension candidates. Maximal degree in co-relation 20127. Up to 2629 conditions per place. [2024-06-14 15:19:10,847 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 137 selfloop transitions, 11 changer transitions 0/155 dead transitions. [2024-06-14 15:19:10,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 155 transitions, 1439 flow [2024-06-14 15:19:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:19:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:19:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-06-14 15:19:10,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43410852713178294 [2024-06-14 15:19:10,848 INFO L175 Difference]: Start difference. First operand has 122 places, 145 transitions, 1112 flow. Second operand 6 states and 112 transitions. [2024-06-14 15:19:10,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 155 transitions, 1439 flow [2024-06-14 15:19:10,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 155 transitions, 1389 flow, removed 21 selfloop flow, removed 2 redundant places. [2024-06-14 15:19:10,889 INFO L231 Difference]: Finished difference. Result has 126 places, 146 transitions, 1101 flow [2024-06-14 15:19:10,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1101, PETRI_PLACES=126, PETRI_TRANSITIONS=146} [2024-06-14 15:19:10,890 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 82 predicate places. [2024-06-14 15:19:10,890 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 146 transitions, 1101 flow [2024-06-14 15:19:10,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:10,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:10,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:10,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-14 15:19:10,891 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:10,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1801422851, now seen corresponding path program 1 times [2024-06-14 15:19:10,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:10,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404936664] [2024-06-14 15:19:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:10,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:27,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:27,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404936664] [2024-06-14 15:19:27,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404936664] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:27,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:27,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:19:27,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47686363] [2024-06-14 15:19:27,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:27,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:19:27,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:27,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:19:27,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:19:27,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:19:27,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 146 transitions, 1101 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:19:27,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:27,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:19:27,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:28,736 INFO L124 PetriNetUnfolderBase]: 1888/2958 cut-off events. [2024-06-14 15:19:28,737 INFO L125 PetriNetUnfolderBase]: For 133294/133294 co-relation queries the response was YES. [2024-06-14 15:19:28,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21020 conditions, 2958 events. 1888/2958 cut-off events. For 133294/133294 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15086 event pairs, 564 based on Foata normal form. 2/2959 useless extension candidates. Maximal degree in co-relation 20963. Up to 2820 conditions per place. [2024-06-14 15:19:28,757 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 141 selfloop transitions, 14 changer transitions 0/160 dead transitions. [2024-06-14 15:19:28,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 160 transitions, 1471 flow [2024-06-14 15:19:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:19:28,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:19:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2024-06-14 15:19:28,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053156146179402 [2024-06-14 15:19:28,759 INFO L175 Difference]: Start difference. First operand has 126 places, 146 transitions, 1101 flow. Second operand 7 states and 122 transitions. [2024-06-14 15:19:28,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 160 transitions, 1471 flow [2024-06-14 15:19:28,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 160 transitions, 1451 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-06-14 15:19:28,819 INFO L231 Difference]: Finished difference. Result has 129 places, 149 transitions, 1155 flow [2024-06-14 15:19:28,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1155, PETRI_PLACES=129, PETRI_TRANSITIONS=149} [2024-06-14 15:19:28,819 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 85 predicate places. [2024-06-14 15:19:28,819 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 149 transitions, 1155 flow [2024-06-14 15:19:28,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:19:28,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:28,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:28,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-14 15:19:28,820 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:28,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1905944113, now seen corresponding path program 1 times [2024-06-14 15:19:28,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:28,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748125826] [2024-06-14 15:19:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:28,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:39,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:39,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748125826] [2024-06-14 15:19:39,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748125826] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:39,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:39,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:19:39,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869186569] [2024-06-14 15:19:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:39,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:19:39,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:19:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:19:40,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:19:40,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 149 transitions, 1155 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:19:40,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:40,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:19:40,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:41,812 INFO L124 PetriNetUnfolderBase]: 2037/3164 cut-off events. [2024-06-14 15:19:41,812 INFO L125 PetriNetUnfolderBase]: For 169532/169532 co-relation queries the response was YES. [2024-06-14 15:19:41,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23934 conditions, 3164 events. 2037/3164 cut-off events. For 169532/169532 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16290 event pairs, 636 based on Foata normal form. 16/3177 useless extension candidates. Maximal degree in co-relation 23876. Up to 2872 conditions per place. [2024-06-14 15:19:41,835 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 164 selfloop transitions, 18 changer transitions 0/188 dead transitions. [2024-06-14 15:19:41,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 188 transitions, 1715 flow [2024-06-14 15:19:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:19:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:19:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-14 15:19:41,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-14 15:19:41,839 INFO L175 Difference]: Start difference. First operand has 129 places, 149 transitions, 1155 flow. Second operand 9 states and 174 transitions. [2024-06-14 15:19:41,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 188 transitions, 1715 flow [2024-06-14 15:19:41,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 188 transitions, 1663 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-14 15:19:41,888 INFO L231 Difference]: Finished difference. Result has 133 places, 150 transitions, 1202 flow [2024-06-14 15:19:41,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1202, PETRI_PLACES=133, PETRI_TRANSITIONS=150} [2024-06-14 15:19:41,888 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 89 predicate places. [2024-06-14 15:19:41,888 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 150 transitions, 1202 flow [2024-06-14 15:19:41,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:19:41,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:41,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:41,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-14 15:19:41,889 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:41,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1190365467, now seen corresponding path program 2 times [2024-06-14 15:19:41,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:41,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296714823] [2024-06-14 15:19:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:53,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:53,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296714823] [2024-06-14 15:19:53,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296714823] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:53,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:53,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:19:53,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187502359] [2024-06-14 15:19:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:19:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:19:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:19:53,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:19:53,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 150 transitions, 1202 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:19:53,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:53,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:19:53,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:55,273 INFO L124 PetriNetUnfolderBase]: 2095/3266 cut-off events. [2024-06-14 15:19:55,274 INFO L125 PetriNetUnfolderBase]: For 183472/183472 co-relation queries the response was YES. [2024-06-14 15:19:55,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25024 conditions, 3266 events. 2095/3266 cut-off events. For 183472/183472 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17037 event pairs, 592 based on Foata normal form. 16/3281 useless extension candidates. Maximal degree in co-relation 24965. Up to 2939 conditions per place. [2024-06-14 15:19:55,305 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 156 selfloop transitions, 24 changer transitions 0/186 dead transitions. [2024-06-14 15:19:55,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 186 transitions, 1750 flow [2024-06-14 15:19:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:19:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:19:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-14 15:19:55,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-14 15:19:55,308 INFO L175 Difference]: Start difference. First operand has 133 places, 150 transitions, 1202 flow. Second operand 9 states and 172 transitions. [2024-06-14 15:19:55,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 186 transitions, 1750 flow [2024-06-14 15:19:55,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 186 transitions, 1693 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-06-14 15:19:55,395 INFO L231 Difference]: Finished difference. Result has 135 places, 151 transitions, 1258 flow [2024-06-14 15:19:55,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1145, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1258, PETRI_PLACES=135, PETRI_TRANSITIONS=151} [2024-06-14 15:19:55,396 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 91 predicate places. [2024-06-14 15:19:55,396 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 151 transitions, 1258 flow [2024-06-14 15:19:55,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:19:55,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:55,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:55,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-14 15:19:55,397 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:55,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1190567277, now seen corresponding path program 3 times [2024-06-14 15:19:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:55,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433644110] [2024-06-14 15:19:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:07,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:07,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433644110] [2024-06-14 15:20:07,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433644110] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:07,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:07,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:20:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906499819] [2024-06-14 15:20:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:07,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:20:07,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:20:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:20:08,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:20:08,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 151 transitions, 1258 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:08,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:08,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:20:08,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:09,916 INFO L124 PetriNetUnfolderBase]: 2153/3374 cut-off events. [2024-06-14 15:20:09,917 INFO L125 PetriNetUnfolderBase]: For 195379/195379 co-relation queries the response was YES. [2024-06-14 15:20:09,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26009 conditions, 3374 events. 2153/3374 cut-off events. For 195379/195379 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 17812 event pairs, 607 based on Foata normal form. 16/3389 useless extension candidates. Maximal degree in co-relation 25949. Up to 3029 conditions per place. [2024-06-14 15:20:09,940 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 152 selfloop transitions, 29 changer transitions 0/187 dead transitions. [2024-06-14 15:20:09,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 187 transitions, 1810 flow [2024-06-14 15:20:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:20:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:20:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-14 15:20:09,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470284237726098 [2024-06-14 15:20:09,943 INFO L175 Difference]: Start difference. First operand has 135 places, 151 transitions, 1258 flow. Second operand 9 states and 173 transitions. [2024-06-14 15:20:09,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 187 transitions, 1810 flow [2024-06-14 15:20:10,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 187 transitions, 1743 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-06-14 15:20:10,057 INFO L231 Difference]: Finished difference. Result has 137 places, 152 transitions, 1314 flow [2024-06-14 15:20:10,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1314, PETRI_PLACES=137, PETRI_TRANSITIONS=152} [2024-06-14 15:20:10,057 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 93 predicate places. [2024-06-14 15:20:10,058 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 152 transitions, 1314 flow [2024-06-14 15:20:10,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:10,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:10,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:10,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-14 15:20:10,058 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:10,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:10,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1190574717, now seen corresponding path program 4 times [2024-06-14 15:20:10,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:10,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353424680] [2024-06-14 15:20:10,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:10,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353424680] [2024-06-14 15:20:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353424680] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:20,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:20:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442769869] [2024-06-14 15:20:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:20,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:20:20,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:20,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:20:20,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:20:20,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:20:20,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 152 transitions, 1314 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:20,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:20,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:20:20,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:22,364 INFO L124 PetriNetUnfolderBase]: 2194/3445 cut-off events. [2024-06-14 15:20:22,364 INFO L125 PetriNetUnfolderBase]: For 204027/204027 co-relation queries the response was YES. [2024-06-14 15:20:22,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26726 conditions, 3445 events. 2194/3445 cut-off events. For 204027/204027 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 18240 event pairs, 569 based on Foata normal form. 12/3456 useless extension candidates. Maximal degree in co-relation 26665. Up to 2777 conditions per place. [2024-06-14 15:20:22,390 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 144 selfloop transitions, 41 changer transitions 0/191 dead transitions. [2024-06-14 15:20:22,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 191 transitions, 1904 flow [2024-06-14 15:20:22,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:20:22,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:20:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 176 transitions. [2024-06-14 15:20:22,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45478036175710596 [2024-06-14 15:20:22,417 INFO L175 Difference]: Start difference. First operand has 137 places, 152 transitions, 1314 flow. Second operand 9 states and 176 transitions. [2024-06-14 15:20:22,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 191 transitions, 1904 flow [2024-06-14 15:20:22,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 191 transitions, 1823 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-06-14 15:20:22,517 INFO L231 Difference]: Finished difference. Result has 139 places, 153 transitions, 1381 flow [2024-06-14 15:20:22,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1381, PETRI_PLACES=139, PETRI_TRANSITIONS=153} [2024-06-14 15:20:22,518 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 95 predicate places. [2024-06-14 15:20:22,518 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 153 transitions, 1381 flow [2024-06-14 15:20:22,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:22,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:22,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:22,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-14 15:20:22,519 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:22,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash -364225253, now seen corresponding path program 1 times [2024-06-14 15:20:22,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:22,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194239071] [2024-06-14 15:20:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:38,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194239071] [2024-06-14 15:20:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194239071] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:38,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:20:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989467794] [2024-06-14 15:20:38,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:38,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:20:38,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:38,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:20:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:20:38,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:20:38,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 153 transitions, 1381 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:20:38,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:38,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:20:38,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:40,351 INFO L124 PetriNetUnfolderBase]: 2317/3572 cut-off events. [2024-06-14 15:20:40,351 INFO L125 PetriNetUnfolderBase]: For 205730/205730 co-relation queries the response was YES. [2024-06-14 15:20:40,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27723 conditions, 3572 events. 2317/3572 cut-off events. For 205730/205730 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 18599 event pairs, 690 based on Foata normal form. 2/3573 useless extension candidates. Maximal degree in co-relation 27661. Up to 3433 conditions per place. [2024-06-14 15:20:40,375 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 150 selfloop transitions, 25 changer transitions 0/179 dead transitions. [2024-06-14 15:20:40,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 179 transitions, 1977 flow [2024-06-14 15:20:40,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:20:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:20:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-14 15:20:40,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 15:20:40,377 INFO L175 Difference]: Start difference. First operand has 139 places, 153 transitions, 1381 flow. Second operand 7 states and 129 transitions. [2024-06-14 15:20:40,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 179 transitions, 1977 flow [2024-06-14 15:20:40,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 179 transitions, 1861 flow, removed 18 selfloop flow, removed 7 redundant places. [2024-06-14 15:20:40,469 INFO L231 Difference]: Finished difference. Result has 139 places, 159 transitions, 1419 flow [2024-06-14 15:20:40,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1419, PETRI_PLACES=139, PETRI_TRANSITIONS=159} [2024-06-14 15:20:40,470 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 95 predicate places. [2024-06-14 15:20:40,470 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 159 transitions, 1419 flow [2024-06-14 15:20:40,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:20:40,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:40,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:40,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-14 15:20:40,471 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:40,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:40,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1214237737, now seen corresponding path program 5 times [2024-06-14 15:20:40,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:40,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867644933] [2024-06-14 15:20:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:40,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:52,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867644933] [2024-06-14 15:20:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867644933] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:52,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:20:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932530250] [2024-06-14 15:20:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:52,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:20:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:20:52,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:20:52,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:20:52,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 159 transitions, 1419 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:52,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:52,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:20:52,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:54,453 INFO L124 PetriNetUnfolderBase]: 2307/3624 cut-off events. [2024-06-14 15:20:54,454 INFO L125 PetriNetUnfolderBase]: For 227421/227427 co-relation queries the response was YES. [2024-06-14 15:20:54,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28438 conditions, 3624 events. 2307/3624 cut-off events. For 227421/227427 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 19578 event pairs, 630 based on Foata normal form. 22/3645 useless extension candidates. Maximal degree in co-relation 28375. Up to 3214 conditions per place. [2024-06-14 15:20:54,481 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 158 selfloop transitions, 40 changer transitions 0/206 dead transitions. [2024-06-14 15:20:54,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 206 transitions, 2075 flow [2024-06-14 15:20:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:20:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:20:54,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2024-06-14 15:20:54,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4441860465116279 [2024-06-14 15:20:54,484 INFO L175 Difference]: Start difference. First operand has 139 places, 159 transitions, 1419 flow. Second operand 10 states and 191 transitions. [2024-06-14 15:20:54,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 206 transitions, 2075 flow [2024-06-14 15:20:54,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 206 transitions, 2022 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-06-14 15:20:54,608 INFO L231 Difference]: Finished difference. Result has 149 places, 170 transitions, 1608 flow [2024-06-14 15:20:54,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1608, PETRI_PLACES=149, PETRI_TRANSITIONS=170} [2024-06-14 15:20:54,608 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 105 predicate places. [2024-06-14 15:20:54,609 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 170 transitions, 1608 flow [2024-06-14 15:20:54,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:20:54,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:54,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:54,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-14 15:20:54,609 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:54,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash -221018745, now seen corresponding path program 6 times [2024-06-14 15:20:54,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:54,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878047638] [2024-06-14 15:20:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:07,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:07,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878047638] [2024-06-14 15:21:07,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878047638] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:07,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:07,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:21:07,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120522544] [2024-06-14 15:21:07,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:07,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:21:07,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:07,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:21:07,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:21:07,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:21:07,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 170 transitions, 1608 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:07,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:07,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:21:07,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:09,145 INFO L124 PetriNetUnfolderBase]: 2365/3722 cut-off events. [2024-06-14 15:21:09,146 INFO L125 PetriNetUnfolderBase]: For 244888/244894 co-relation queries the response was YES. [2024-06-14 15:21:09,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29960 conditions, 3722 events. 2365/3722 cut-off events. For 244888/244894 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 20332 event pairs, 635 based on Foata normal form. 22/3743 useless extension candidates. Maximal degree in co-relation 29892. Up to 3312 conditions per place. [2024-06-14 15:21:09,175 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 159 selfloop transitions, 40 changer transitions 0/207 dead transitions. [2024-06-14 15:21:09,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 207 transitions, 2204 flow [2024-06-14 15:21:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:21:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:21:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2024-06-14 15:21:09,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-14 15:21:09,178 INFO L175 Difference]: Start difference. First operand has 149 places, 170 transitions, 1608 flow. Second operand 10 states and 190 transitions. [2024-06-14 15:21:09,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 207 transitions, 2204 flow [2024-06-14 15:21:09,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 207 transitions, 2116 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-06-14 15:21:09,302 INFO L231 Difference]: Finished difference. Result has 155 places, 171 transitions, 1667 flow [2024-06-14 15:21:09,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1520, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1667, PETRI_PLACES=155, PETRI_TRANSITIONS=171} [2024-06-14 15:21:09,303 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 111 predicate places. [2024-06-14 15:21:09,303 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 171 transitions, 1667 flow [2024-06-14 15:21:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:09,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:09,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:09,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-14 15:21:09,304 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:09,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1672157555, now seen corresponding path program 7 times [2024-06-14 15:21:09,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:09,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138745469] [2024-06-14 15:21:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:09,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:21,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138745469] [2024-06-14 15:21:21,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138745469] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:21,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:21,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:21:21,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645773730] [2024-06-14 15:21:21,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:21:21,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:21:21,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:21:21,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:21:21,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 171 transitions, 1667 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:21,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:21,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:21:21,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:23,612 INFO L124 PetriNetUnfolderBase]: 2445/3864 cut-off events. [2024-06-14 15:21:23,613 INFO L125 PetriNetUnfolderBase]: For 257984/257986 co-relation queries the response was YES. [2024-06-14 15:21:23,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31072 conditions, 3864 events. 2445/3864 cut-off events. For 257984/257986 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 21357 event pairs, 628 based on Foata normal form. 16/3878 useless extension candidates. Maximal degree in co-relation 31003. Up to 3382 conditions per place. [2024-06-14 15:21:23,641 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 153 selfloop transitions, 53 changer transitions 0/214 dead transitions. [2024-06-14 15:21:23,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 214 transitions, 2310 flow [2024-06-14 15:21:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:21:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:21:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2024-06-14 15:21:23,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44883720930232557 [2024-06-14 15:21:23,644 INFO L175 Difference]: Start difference. First operand has 155 places, 171 transitions, 1667 flow. Second operand 10 states and 193 transitions. [2024-06-14 15:21:23,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 214 transitions, 2310 flow [2024-06-14 15:21:23,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 214 transitions, 2205 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-06-14 15:21:23,767 INFO L231 Difference]: Finished difference. Result has 159 places, 178 transitions, 1796 flow [2024-06-14 15:21:23,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1562, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1796, PETRI_PLACES=159, PETRI_TRANSITIONS=178} [2024-06-14 15:21:23,768 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 115 predicate places. [2024-06-14 15:21:23,768 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 178 transitions, 1796 flow [2024-06-14 15:21:23,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:23,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:23,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:23,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-14 15:21:23,769 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:23,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1214446987, now seen corresponding path program 8 times [2024-06-14 15:21:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937005475] [2024-06-14 15:21:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:23,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:34,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:34,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937005475] [2024-06-14 15:21:34,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937005475] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:34,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:34,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:21:34,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774455544] [2024-06-14 15:21:34,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:34,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:21:34,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:21:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:21:34,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:21:34,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 178 transitions, 1796 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:34,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:34,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:21:34,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:36,579 INFO L124 PetriNetUnfolderBase]: 2503/3972 cut-off events. [2024-06-14 15:21:36,580 INFO L125 PetriNetUnfolderBase]: For 265685/265687 co-relation queries the response was YES. [2024-06-14 15:21:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31989 conditions, 3972 events. 2503/3972 cut-off events. For 265685/265687 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 22163 event pairs, 628 based on Foata normal form. 12/3982 useless extension candidates. Maximal degree in co-relation 31917. Up to 3209 conditions per place. [2024-06-14 15:21:36,612 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 155 selfloop transitions, 57 changer transitions 0/220 dead transitions. [2024-06-14 15:21:36,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 220 transitions, 2464 flow [2024-06-14 15:21:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:21:36,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:21:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2024-06-14 15:21:36,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-06-14 15:21:36,617 INFO L175 Difference]: Start difference. First operand has 159 places, 178 transitions, 1796 flow. Second operand 10 states and 195 transitions. [2024-06-14 15:21:36,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 220 transitions, 2464 flow [2024-06-14 15:21:36,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 220 transitions, 2347 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-06-14 15:21:36,739 INFO L231 Difference]: Finished difference. Result has 164 places, 181 transitions, 1891 flow [2024-06-14 15:21:36,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1891, PETRI_PLACES=164, PETRI_TRANSITIONS=181} [2024-06-14 15:21:36,741 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 120 predicate places. [2024-06-14 15:21:36,742 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 181 transitions, 1891 flow [2024-06-14 15:21:36,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:36,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:36,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:36,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-14 15:21:36,742 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:36,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash -44854675, now seen corresponding path program 9 times [2024-06-14 15:21:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327167088] [2024-06-14 15:21:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:36,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:47,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:47,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327167088] [2024-06-14 15:21:47,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327167088] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:47,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:47,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:21:47,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579189036] [2024-06-14 15:21:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:47,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:21:47,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:21:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:21:48,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:21:48,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 181 transitions, 1891 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:48,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:48,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:21:48,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:50,146 INFO L124 PetriNetUnfolderBase]: 2666/4252 cut-off events. [2024-06-14 15:21:50,146 INFO L125 PetriNetUnfolderBase]: For 304604/304610 co-relation queries the response was YES. [2024-06-14 15:21:50,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35561 conditions, 4252 events. 2666/4252 cut-off events. For 304604/304610 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 24248 event pairs, 665 based on Foata normal form. 18/4269 useless extension candidates. Maximal degree in co-relation 35487. Up to 2716 conditions per place. [2024-06-14 15:21:50,183 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 128 selfloop transitions, 86 changer transitions 0/222 dead transitions. [2024-06-14 15:21:50,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 222 transitions, 2829 flow [2024-06-14 15:21:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:21:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:21:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 178 transitions. [2024-06-14 15:21:50,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4599483204134367 [2024-06-14 15:21:50,185 INFO L175 Difference]: Start difference. First operand has 164 places, 181 transitions, 1891 flow. Second operand 9 states and 178 transitions. [2024-06-14 15:21:50,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 222 transitions, 2829 flow [2024-06-14 15:21:50,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 222 transitions, 2689 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-06-14 15:21:50,418 INFO L231 Difference]: Finished difference. Result has 167 places, 184 transitions, 2159 flow [2024-06-14 15:21:50,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1751, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2159, PETRI_PLACES=167, PETRI_TRANSITIONS=184} [2024-06-14 15:21:50,418 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 123 predicate places. [2024-06-14 15:21:50,418 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 184 transitions, 2159 flow [2024-06-14 15:21:50,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:21:50,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:50,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:50,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-14 15:21:50,419 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:50,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash -54058885, now seen corresponding path program 10 times [2024-06-14 15:21:50,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331168692] [2024-06-14 15:21:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:50,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:02,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331168692] [2024-06-14 15:22:02,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331168692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:02,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:02,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:22:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925307175] [2024-06-14 15:22:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:02,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:22:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:02,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:22:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:22:02,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:22:02,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 184 transitions, 2159 flow. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 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) [2024-06-14 15:22:02,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:02,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:22:02,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:04,908 INFO L124 PetriNetUnfolderBase]: 2724/4350 cut-off events. [2024-06-14 15:22:04,908 INFO L125 PetriNetUnfolderBase]: For 326920/326926 co-relation queries the response was YES. [2024-06-14 15:22:04,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37004 conditions, 4350 events. 2724/4350 cut-off events. For 326920/326926 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 25100 event pairs, 733 based on Foata normal form. 22/4371 useless extension candidates. Maximal degree in co-relation 36928. Up to 3798 conditions per place. [2024-06-14 15:22:04,942 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 138 selfloop transitions, 71 changer transitions 0/217 dead transitions. [2024-06-14 15:22:04,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 217 transitions, 2774 flow [2024-06-14 15:22:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:22:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:22:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 164 transitions. [2024-06-14 15:22:04,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42377260981912146 [2024-06-14 15:22:04,945 INFO L175 Difference]: Start difference. First operand has 167 places, 184 transitions, 2159 flow. Second operand 9 states and 164 transitions. [2024-06-14 15:22:04,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 217 transitions, 2774 flow [2024-06-14 15:22:05,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 217 transitions, 2649 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-06-14 15:22:05,133 INFO L231 Difference]: Finished difference. Result has 171 places, 185 transitions, 2252 flow [2024-06-14 15:22:05,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2034, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2252, PETRI_PLACES=171, PETRI_TRANSITIONS=185} [2024-06-14 15:22:05,134 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 127 predicate places. [2024-06-14 15:22:05,134 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 185 transitions, 2252 flow [2024-06-14 15:22:05,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 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) [2024-06-14 15:22:05,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:05,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:05,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-14 15:22:05,135 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:05,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash -310761205, now seen corresponding path program 11 times [2024-06-14 15:22:05,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:05,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746210958] [2024-06-14 15:22:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:05,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:17,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746210958] [2024-06-14 15:22:17,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746210958] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:17,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:17,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:22:17,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250001565] [2024-06-14 15:22:17,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:17,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:22:17,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:17,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:22:17,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:22:17,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:22:17,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 185 transitions, 2252 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:17,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:17,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:22:17,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:19,420 INFO L124 PetriNetUnfolderBase]: 2696/4306 cut-off events. [2024-06-14 15:22:19,420 INFO L125 PetriNetUnfolderBase]: For 322886/322892 co-relation queries the response was YES. [2024-06-14 15:22:19,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36206 conditions, 4306 events. 2696/4306 cut-off events. For 322886/322892 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 24795 event pairs, 717 based on Foata normal form. 22/4327 useless extension candidates. Maximal degree in co-relation 36128. Up to 3669 conditions per place. [2024-06-14 15:22:19,456 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 162 selfloop transitions, 47 changer transitions 0/217 dead transitions. [2024-06-14 15:22:19,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 217 transitions, 2800 flow [2024-06-14 15:22:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:22:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:22:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-14 15:22:19,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470284237726098 [2024-06-14 15:22:19,459 INFO L175 Difference]: Start difference. First operand has 171 places, 185 transitions, 2252 flow. Second operand 9 states and 173 transitions. [2024-06-14 15:22:19,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 217 transitions, 2800 flow [2024-06-14 15:22:19,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 217 transitions, 2627 flow, removed 17 selfloop flow, removed 7 redundant places. [2024-06-14 15:22:19,715 INFO L231 Difference]: Finished difference. Result has 173 places, 185 transitions, 2186 flow [2024-06-14 15:22:19,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2079, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2186, PETRI_PLACES=173, PETRI_TRANSITIONS=185} [2024-06-14 15:22:19,716 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 129 predicate places. [2024-06-14 15:22:19,716 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 185 transitions, 2186 flow [2024-06-14 15:22:19,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:19,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:19,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:19,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-14 15:22:19,717 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:19,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1866096965, now seen corresponding path program 12 times [2024-06-14 15:22:19,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736195396] [2024-06-14 15:22:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:31,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736195396] [2024-06-14 15:22:31,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736195396] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:31,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:31,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:22:31,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032330813] [2024-06-14 15:22:31,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:31,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:22:31,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:31,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:22:31,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:22:32,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:22:32,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 185 transitions, 2186 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:32,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:32,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:22:32,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:34,218 INFO L124 PetriNetUnfolderBase]: 2729/4372 cut-off events. [2024-06-14 15:22:34,218 INFO L125 PetriNetUnfolderBase]: For 330868/330870 co-relation queries the response was YES. [2024-06-14 15:22:34,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36564 conditions, 4372 events. 2729/4372 cut-off events. For 330868/330870 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 25384 event pairs, 708 based on Foata normal form. 16/4386 useless extension candidates. Maximal degree in co-relation 36485. Up to 3751 conditions per place. [2024-06-14 15:22:34,257 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 149 selfloop transitions, 61 changer transitions 0/218 dead transitions. [2024-06-14 15:22:34,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 218 transitions, 2805 flow [2024-06-14 15:22:34,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:22:34,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:22:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 175 transitions. [2024-06-14 15:22:34,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45219638242894056 [2024-06-14 15:22:34,268 INFO L175 Difference]: Start difference. First operand has 173 places, 185 transitions, 2186 flow. Second operand 9 states and 175 transitions. [2024-06-14 15:22:34,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 218 transitions, 2805 flow [2024-06-14 15:22:34,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 218 transitions, 2694 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-06-14 15:22:34,579 INFO L231 Difference]: Finished difference. Result has 175 places, 186 transitions, 2278 flow [2024-06-14 15:22:34,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2075, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2278, PETRI_PLACES=175, PETRI_TRANSITIONS=186} [2024-06-14 15:22:34,579 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 131 predicate places. [2024-06-14 15:22:34,579 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 186 transitions, 2278 flow [2024-06-14 15:22:34,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:34,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:34,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:34,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-14 15:22:34,580 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:34,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1667618179, now seen corresponding path program 13 times [2024-06-14 15:22:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:34,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588676274] [2024-06-14 15:22:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:45,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:45,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588676274] [2024-06-14 15:22:45,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588676274] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:45,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:45,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:22:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274265630] [2024-06-14 15:22:45,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:45,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:22:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:22:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:22:45,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:22:45,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 186 transitions, 2278 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:45,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:45,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:22:45,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:47,782 INFO L124 PetriNetUnfolderBase]: 2770/4453 cut-off events. [2024-06-14 15:22:47,783 INFO L125 PetriNetUnfolderBase]: For 339852/339854 co-relation queries the response was YES. [2024-06-14 15:22:47,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37422 conditions, 4453 events. 2770/4453 cut-off events. For 339852/339854 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 26080 event pairs, 708 based on Foata normal form. 12/4463 useless extension candidates. Maximal degree in co-relation 37342. Up to 3755 conditions per place. [2024-06-14 15:22:47,820 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 133 selfloop transitions, 81 changer transitions 0/222 dead transitions. [2024-06-14 15:22:47,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 222 transitions, 2937 flow [2024-06-14 15:22:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:22:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:22:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-06-14 15:22:47,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-14 15:22:47,823 INFO L175 Difference]: Start difference. First operand has 175 places, 186 transitions, 2278 flow. Second operand 9 states and 177 transitions. [2024-06-14 15:22:47,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 222 transitions, 2937 flow [2024-06-14 15:22:48,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 222 transitions, 2787 flow, removed 17 selfloop flow, removed 7 redundant places. [2024-06-14 15:22:48,223 INFO L231 Difference]: Finished difference. Result has 177 places, 187 transitions, 2369 flow [2024-06-14 15:22:48,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2369, PETRI_PLACES=177, PETRI_TRANSITIONS=187} [2024-06-14 15:22:48,224 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 133 predicate places. [2024-06-14 15:22:48,224 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 187 transitions, 2369 flow [2024-06-14 15:22:48,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:22:48,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:48,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:48,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-14 15:22:48,230 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:48,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:48,230 INFO L85 PathProgramCache]: Analyzing trace with hash -205180337, now seen corresponding path program 14 times [2024-06-14 15:22:48,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:48,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511184364] [2024-06-14 15:22:48,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:48,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:59,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:59,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511184364] [2024-06-14 15:22:59,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511184364] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:59,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:59,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:22:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027187987] [2024-06-14 15:22:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:59,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:22:59,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:59,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:22:59,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:22:59,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:23:00,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 187 transitions, 2369 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:23:00,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:00,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:23:00,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:02,035 INFO L124 PetriNetUnfolderBase]: 2750/4421 cut-off events. [2024-06-14 15:23:02,035 INFO L125 PetriNetUnfolderBase]: For 336458/336460 co-relation queries the response was YES. [2024-06-14 15:23:02,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36659 conditions, 4421 events. 2750/4421 cut-off events. For 336458/336460 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 25784 event pairs, 679 based on Foata normal form. 12/4431 useless extension candidates. Maximal degree in co-relation 36578. Up to 3340 conditions per place. [2024-06-14 15:23:02,071 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 146 selfloop transitions, 68 changer transitions 0/222 dead transitions. [2024-06-14 15:23:02,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 222 transitions, 2957 flow [2024-06-14 15:23:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:23:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:23:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-06-14 15:23:02,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-14 15:23:02,077 INFO L175 Difference]: Start difference. First operand has 177 places, 187 transitions, 2369 flow. Second operand 9 states and 177 transitions. [2024-06-14 15:23:02,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 222 transitions, 2957 flow [2024-06-14 15:23:02,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 222 transitions, 2733 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-06-14 15:23:02,402 INFO L231 Difference]: Finished difference. Result has 179 places, 187 transitions, 2289 flow [2024-06-14 15:23:02,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2145, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2289, PETRI_PLACES=179, PETRI_TRANSITIONS=187} [2024-06-14 15:23:02,403 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 135 predicate places. [2024-06-14 15:23:02,403 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 187 transitions, 2289 flow [2024-06-14 15:23:02,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:23:02,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:02,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:02,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-14 15:23:02,404 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:02,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:02,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1067566263, now seen corresponding path program 2 times [2024-06-14 15:23:02,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:02,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845781262] [2024-06-14 15:23:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:02,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845781262] [2024-06-14 15:23:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845781262] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:19,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:19,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:23:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943097772] [2024-06-14 15:23:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:19,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:23:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:23:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:23:19,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:23:19,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 187 transitions, 2289 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:23:19,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:19,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:23:19,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:21,487 INFO L124 PetriNetUnfolderBase]: 2861/4538 cut-off events. [2024-06-14 15:23:21,487 INFO L125 PetriNetUnfolderBase]: For 330859/330861 co-relation queries the response was YES. [2024-06-14 15:23:21,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37253 conditions, 4538 events. 2861/4538 cut-off events. For 330859/330861 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 26074 event pairs, 811 based on Foata normal form. 2/4538 useless extension candidates. Maximal degree in co-relation 37171. Up to 4344 conditions per place. [2024-06-14 15:23:21,523 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 172 selfloop transitions, 28 changer transitions 0/204 dead transitions. [2024-06-14 15:23:21,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 204 transitions, 2901 flow [2024-06-14 15:23:21,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:23:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:23:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-06-14 15:23:21,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4119601328903654 [2024-06-14 15:23:21,526 INFO L175 Difference]: Start difference. First operand has 179 places, 187 transitions, 2289 flow. Second operand 7 states and 124 transitions. [2024-06-14 15:23:21,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 204 transitions, 2901 flow [2024-06-14 15:23:21,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 204 transitions, 2700 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-06-14 15:23:21,817 INFO L231 Difference]: Finished difference. Result has 178 places, 190 transitions, 2202 flow [2024-06-14 15:23:21,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2088, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2202, PETRI_PLACES=178, PETRI_TRANSITIONS=190} [2024-06-14 15:23:21,817 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 134 predicate places. [2024-06-14 15:23:21,817 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 190 transitions, 2202 flow [2024-06-14 15:23:21,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:23:21,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:21,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:21,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-14 15:23:21,818 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:21,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:21,819 INFO L85 PathProgramCache]: Analyzing trace with hash -9546503, now seen corresponding path program 3 times [2024-06-14 15:23:21,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:21,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168899916] [2024-06-14 15:23:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:21,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:38,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:38,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168899916] [2024-06-14 15:23:38,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168899916] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:38,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:38,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:23:38,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702207317] [2024-06-14 15:23:38,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:38,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:23:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:23:38,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:23:38,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:23:38,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 190 transitions, 2202 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:23:38,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:38,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:23:38,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:40,111 INFO L124 PetriNetUnfolderBase]: 2855/4530 cut-off events. [2024-06-14 15:23:40,112 INFO L125 PetriNetUnfolderBase]: For 333063/333065 co-relation queries the response was YES. [2024-06-14 15:23:40,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36773 conditions, 4530 events. 2855/4530 cut-off events. For 333063/333065 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 26055 event pairs, 805 based on Foata normal form. 2/4530 useless extension candidates. Maximal degree in co-relation 36690. Up to 4339 conditions per place. [2024-06-14 15:23:40,149 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 170 selfloop transitions, 29 changer transitions 0/203 dead transitions. [2024-06-14 15:23:40,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 203 transitions, 2660 flow [2024-06-14 15:23:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:23:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:23:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2024-06-14 15:23:40,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053156146179402 [2024-06-14 15:23:40,150 INFO L175 Difference]: Start difference. First operand has 178 places, 190 transitions, 2202 flow. Second operand 7 states and 122 transitions. [2024-06-14 15:23:40,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 203 transitions, 2660 flow [2024-06-14 15:23:40,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 203 transitions, 2528 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-06-14 15:23:40,463 INFO L231 Difference]: Finished difference. Result has 180 places, 190 transitions, 2134 flow [2024-06-14 15:23:40,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2070, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2134, PETRI_PLACES=180, PETRI_TRANSITIONS=190} [2024-06-14 15:23:40,464 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 136 predicate places. [2024-06-14 15:23:40,464 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 190 transitions, 2134 flow [2024-06-14 15:23:40,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-06-14 15:23:40,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:40,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-14 15:23:40,465 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:40,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash -187029377, now seen corresponding path program 1 times [2024-06-14 15:23:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201005223] [2024-06-14 15:23:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:53,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:53,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201005223] [2024-06-14 15:23:53,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201005223] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:53,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:53,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:23:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870673638] [2024-06-14 15:23:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:53,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:23:53,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:53,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:23:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:23:53,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:23:53,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 190 transitions, 2134 flow. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:23:53,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:53,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:23:53,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:55,260 INFO L124 PetriNetUnfolderBase]: 2553/4208 cut-off events. [2024-06-14 15:23:55,260 INFO L125 PetriNetUnfolderBase]: For 300839/300839 co-relation queries the response was YES. [2024-06-14 15:23:55,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33475 conditions, 4208 events. 2553/4208 cut-off events. For 300839/300839 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25326 event pairs, 671 based on Foata normal form. 1/4208 useless extension candidates. Maximal degree in co-relation 33391. Up to 3905 conditions per place. [2024-06-14 15:23:55,302 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 179 selfloop transitions, 16 changer transitions 0/205 dead transitions. [2024-06-14 15:23:55,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 205 transitions, 2598 flow [2024-06-14 15:23:55,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:23:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:23:55,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-06-14 15:23:55,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-06-14 15:23:55,303 INFO L175 Difference]: Start difference. First operand has 180 places, 190 transitions, 2134 flow. Second operand 6 states and 117 transitions. [2024-06-14 15:23:55,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 205 transitions, 2598 flow [2024-06-14 15:23:55,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 205 transitions, 2532 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-14 15:23:55,631 INFO L231 Difference]: Finished difference. Result has 180 places, 193 transitions, 2160 flow [2024-06-14 15:23:55,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2068, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2160, PETRI_PLACES=180, PETRI_TRANSITIONS=193} [2024-06-14 15:23:55,632 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 136 predicate places. [2024-06-14 15:23:55,632 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 193 transitions, 2160 flow [2024-06-14 15:23:55,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:23:55,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:55,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:55,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-14 15:23:55,633 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:55,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash -162031079, now seen corresponding path program 2 times [2024-06-14 15:23:55,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:55,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721875655] [2024-06-14 15:23:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:08,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721875655] [2024-06-14 15:24:08,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721875655] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:08,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:08,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:24:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253695090] [2024-06-14 15:24:08,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:08,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:24:08,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:08,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:24:08,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:24:08,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:24:08,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 193 transitions, 2160 flow. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:24:08,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:08,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:24:08,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:10,135 INFO L124 PetriNetUnfolderBase]: 2558/4215 cut-off events. [2024-06-14 15:24:10,136 INFO L125 PetriNetUnfolderBase]: For 309881/309881 co-relation queries the response was YES. [2024-06-14 15:24:10,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33931 conditions, 4215 events. 2558/4215 cut-off events. For 309881/309881 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25341 event pairs, 672 based on Foata normal form. 1/4215 useless extension candidates. Maximal degree in co-relation 33846. Up to 3899 conditions per place. [2024-06-14 15:24:10,176 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 177 selfloop transitions, 26 changer transitions 0/213 dead transitions. [2024-06-14 15:24:10,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 213 transitions, 2804 flow [2024-06-14 15:24:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:24:10,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:24:10,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-14 15:24:10,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-14 15:24:10,178 INFO L175 Difference]: Start difference. First operand has 180 places, 193 transitions, 2160 flow. Second operand 7 states and 135 transitions. [2024-06-14 15:24:10,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 213 transitions, 2804 flow [2024-06-14 15:24:10,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 213 transitions, 2738 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-06-14 15:24:10,503 INFO L231 Difference]: Finished difference. Result has 182 places, 199 transitions, 2260 flow [2024-06-14 15:24:10,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2096, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2260, PETRI_PLACES=182, PETRI_TRANSITIONS=199} [2024-06-14 15:24:10,503 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 138 predicate places. [2024-06-14 15:24:10,503 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 199 transitions, 2260 flow [2024-06-14 15:24:10,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:24:10,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:10,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:10,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-14 15:24:10,504 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:10,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:10,505 INFO L85 PathProgramCache]: Analyzing trace with hash -162030893, now seen corresponding path program 1 times [2024-06-14 15:24:10,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:10,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144493076] [2024-06-14 15:24:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:10,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:23,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144493076] [2024-06-14 15:24:23,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144493076] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:23,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:23,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:24:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908297791] [2024-06-14 15:24:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:24:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:24:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:24:23,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:24:23,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 199 transitions, 2260 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:23,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:23,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:24:23,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:25,422 INFO L124 PetriNetUnfolderBase]: 2666/4325 cut-off events. [2024-06-14 15:24:25,422 INFO L125 PetriNetUnfolderBase]: For 311158/311158 co-relation queries the response was YES. [2024-06-14 15:24:25,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34835 conditions, 4325 events. 2666/4325 cut-off events. For 311158/311158 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25471 event pairs, 718 based on Foata normal form. 1/4325 useless extension candidates. Maximal degree in co-relation 34750. Up to 4109 conditions per place. [2024-06-14 15:24:25,458 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 191 selfloop transitions, 23 changer transitions 0/219 dead transitions. [2024-06-14 15:24:25,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 219 transitions, 2902 flow [2024-06-14 15:24:25,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:24:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:24:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-14 15:24:25,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-14 15:24:25,460 INFO L175 Difference]: Start difference. First operand has 182 places, 199 transitions, 2260 flow. Second operand 7 states and 129 transitions. [2024-06-14 15:24:25,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 219 transitions, 2902 flow [2024-06-14 15:24:25,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 219 transitions, 2840 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-06-14 15:24:25,777 INFO L231 Difference]: Finished difference. Result has 186 places, 205 transitions, 2332 flow [2024-06-14 15:24:25,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2198, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2332, PETRI_PLACES=186, PETRI_TRANSITIONS=205} [2024-06-14 15:24:25,778 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 142 predicate places. [2024-06-14 15:24:25,778 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 205 transitions, 2332 flow [2024-06-14 15:24:25,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:25,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:25,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-14 15:24:25,779 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:25,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:25,779 INFO L85 PathProgramCache]: Analyzing trace with hash 97119447, now seen corresponding path program 2 times [2024-06-14 15:24:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:25,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949233387] [2024-06-14 15:24:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:37,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:37,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949233387] [2024-06-14 15:24:37,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949233387] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:37,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:37,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:24:37,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293024867] [2024-06-14 15:24:37,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:37,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:24:37,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:37,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:24:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:24:38,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:24:38,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 205 transitions, 2332 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:38,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:38,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:24:38,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:39,707 INFO L124 PetriNetUnfolderBase]: 2671/4332 cut-off events. [2024-06-14 15:24:39,707 INFO L125 PetriNetUnfolderBase]: For 321847/321847 co-relation queries the response was YES. [2024-06-14 15:24:39,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35386 conditions, 4332 events. 2671/4332 cut-off events. For 321847/321847 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25495 event pairs, 711 based on Foata normal form. 1/4332 useless extension candidates. Maximal degree in co-relation 35299. Up to 4137 conditions per place. [2024-06-14 15:24:39,746 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 199 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2024-06-14 15:24:39,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 218 transitions, 2826 flow [2024-06-14 15:24:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:24:39,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:24:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2024-06-14 15:24:39,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4019933554817276 [2024-06-14 15:24:39,748 INFO L175 Difference]: Start difference. First operand has 186 places, 205 transitions, 2332 flow. Second operand 7 states and 121 transitions. [2024-06-14 15:24:39,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 218 transitions, 2826 flow [2024-06-14 15:24:40,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 218 transitions, 2764 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-06-14 15:24:40,120 INFO L231 Difference]: Finished difference. Result has 190 places, 208 transitions, 2354 flow [2024-06-14 15:24:40,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2278, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2354, PETRI_PLACES=190, PETRI_TRANSITIONS=208} [2024-06-14 15:24:40,121 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 146 predicate places. [2024-06-14 15:24:40,121 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 208 transitions, 2354 flow [2024-06-14 15:24:40,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:40,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:40,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:40,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-14 15:24:40,121 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:40,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:40,122 INFO L85 PathProgramCache]: Analyzing trace with hash -9777701, now seen corresponding path program 3 times [2024-06-14 15:24:40,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:40,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136369058] [2024-06-14 15:24:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:40,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:53,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:53,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136369058] [2024-06-14 15:24:53,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136369058] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:53,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:53,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:24:53,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579550605] [2024-06-14 15:24:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:53,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:24:53,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:24:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:24:53,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:24:53,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 208 transitions, 2354 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:53,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:53,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:24:53,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:54,847 INFO L124 PetriNetUnfolderBase]: 2668/4328 cut-off events. [2024-06-14 15:24:54,847 INFO L125 PetriNetUnfolderBase]: For 329930/329930 co-relation queries the response was YES. [2024-06-14 15:24:54,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35485 conditions, 4328 events. 2668/4328 cut-off events. For 329930/329930 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25488 event pairs, 711 based on Foata normal form. 1/4328 useless extension candidates. Maximal degree in co-relation 35396. Up to 4127 conditions per place. [2024-06-14 15:24:54,885 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 194 selfloop transitions, 19 changer transitions 0/218 dead transitions. [2024-06-14 15:24:54,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 218 transitions, 2804 flow [2024-06-14 15:24:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:24:54,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:24:54,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2024-06-14 15:24:54,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40863787375415284 [2024-06-14 15:24:54,886 INFO L175 Difference]: Start difference. First operand has 190 places, 208 transitions, 2354 flow. Second operand 7 states and 123 transitions. [2024-06-14 15:24:54,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 218 transitions, 2804 flow [2024-06-14 15:24:55,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 218 transitions, 2740 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-14 15:24:55,232 INFO L231 Difference]: Finished difference. Result has 192 places, 208 transitions, 2334 flow [2024-06-14 15:24:55,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2290, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2334, PETRI_PLACES=192, PETRI_TRANSITIONS=208} [2024-06-14 15:24:55,233 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 148 predicate places. [2024-06-14 15:24:55,233 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 208 transitions, 2334 flow [2024-06-14 15:24:55,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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) [2024-06-14 15:24:55,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:55,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-14 15:24:55,234 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:55,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash -157389449, now seen corresponding path program 3 times [2024-06-14 15:24:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779908785] [2024-06-14 15:24:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:07,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:07,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779908785] [2024-06-14 15:25:07,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779908785] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:07,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:07,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:25:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687581752] [2024-06-14 15:25:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:07,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:25:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:25:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:25:07,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:25:07,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 208 transitions, 2334 flow. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:25:07,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:07,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:25:07,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:09,523 INFO L124 PetriNetUnfolderBase]: 2572/4231 cut-off events. [2024-06-14 15:25:09,523 INFO L125 PetriNetUnfolderBase]: For 338511/338511 co-relation queries the response was YES. [2024-06-14 15:25:09,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34993 conditions, 4231 events. 2572/4231 cut-off events. For 338511/338511 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25389 event pairs, 678 based on Foata normal form. 1/4231 useless extension candidates. Maximal degree in co-relation 34903. Up to 3940 conditions per place. [2024-06-14 15:25:09,560 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 191 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2024-06-14 15:25:09,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 218 transitions, 2768 flow [2024-06-14 15:25:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:25:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:25:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 127 transitions. [2024-06-14 15:25:09,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219269102990033 [2024-06-14 15:25:09,562 INFO L175 Difference]: Start difference. First operand has 192 places, 208 transitions, 2334 flow. Second operand 7 states and 127 transitions. [2024-06-14 15:25:09,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 218 transitions, 2768 flow [2024-06-14 15:25:09,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 218 transitions, 2672 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-06-14 15:25:09,913 INFO L231 Difference]: Finished difference. Result has 193 places, 208 transitions, 2272 flow [2024-06-14 15:25:09,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2238, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2272, PETRI_PLACES=193, PETRI_TRANSITIONS=208} [2024-06-14 15:25:09,913 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 149 predicate places. [2024-06-14 15:25:09,914 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 208 transitions, 2272 flow [2024-06-14 15:25:09,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 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) [2024-06-14 15:25:09,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:09,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:09,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-14 15:25:09,914 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:09,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:09,915 INFO L85 PathProgramCache]: Analyzing trace with hash 499386766, now seen corresponding path program 1 times [2024-06-14 15:25:09,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:09,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741918969] [2024-06-14 15:25:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:22,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741918969] [2024-06-14 15:25:22,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741918969] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:22,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:22,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:25:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459260973] [2024-06-14 15:25:22,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:22,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:25:22,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:25:22,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:25:22,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:25:22,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 208 transitions, 2272 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:25:22,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:22,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:25:22,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:24,770 INFO L124 PetriNetUnfolderBase]: 2850/4562 cut-off events. [2024-06-14 15:25:24,770 INFO L125 PetriNetUnfolderBase]: For 420808/420808 co-relation queries the response was YES. [2024-06-14 15:25:24,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39294 conditions, 4562 events. 2850/4562 cut-off events. For 420808/420808 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 26545 event pairs, 666 based on Foata normal form. 12/4567 useless extension candidates. Maximal degree in co-relation 39203. Up to 4183 conditions per place. [2024-06-14 15:25:24,809 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 224 selfloop transitions, 18 changer transitions 0/254 dead transitions. [2024-06-14 15:25:24,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 254 transitions, 2964 flow [2024-06-14 15:25:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:25:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:25:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-06-14 15:25:24,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43953488372093025 [2024-06-14 15:25:24,812 INFO L175 Difference]: Start difference. First operand has 193 places, 208 transitions, 2272 flow. Second operand 10 states and 189 transitions. [2024-06-14 15:25:24,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 254 transitions, 2964 flow [2024-06-14 15:25:25,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 254 transitions, 2920 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-14 15:25:25,196 INFO L231 Difference]: Finished difference. Result has 198 places, 211 transitions, 2359 flow [2024-06-14 15:25:25,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2228, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2359, PETRI_PLACES=198, PETRI_TRANSITIONS=211} [2024-06-14 15:25:25,196 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 154 predicate places. [2024-06-14 15:25:25,196 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 211 transitions, 2359 flow [2024-06-14 15:25:25,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:25:25,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:25,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:25,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-14 15:25:25,197 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:25,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1045458000, now seen corresponding path program 2 times [2024-06-14 15:25:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:25,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642916272] [2024-06-14 15:25:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:38,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:38,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642916272] [2024-06-14 15:25:38,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642916272] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:38,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:38,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:25:38,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985988792] [2024-06-14 15:25:38,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:38,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:25:38,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:38,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:25:38,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:25:38,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:25:38,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 211 transitions, 2359 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:25:38,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:38,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:25:38,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:40,789 INFO L124 PetriNetUnfolderBase]: 2830/4524 cut-off events. [2024-06-14 15:25:40,789 INFO L125 PetriNetUnfolderBase]: For 418082/418082 co-relation queries the response was YES. [2024-06-14 15:25:40,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38840 conditions, 4524 events. 2830/4524 cut-off events. For 418082/418082 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 26451 event pairs, 795 based on Foata normal form. 12/4520 useless extension candidates. Maximal degree in co-relation 38747. Up to 4163 conditions per place. [2024-06-14 15:25:40,829 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 221 selfloop transitions, 17 changer transitions 0/250 dead transitions. [2024-06-14 15:25:40,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 250 transitions, 2975 flow [2024-06-14 15:25:40,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:25:40,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:25:40,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-14 15:25:40,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-14 15:25:40,832 INFO L175 Difference]: Start difference. First operand has 198 places, 211 transitions, 2359 flow. Second operand 9 states and 174 transitions. [2024-06-14 15:25:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 250 transitions, 2975 flow [2024-06-14 15:25:41,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 250 transitions, 2889 flow, removed 27 selfloop flow, removed 7 redundant places. [2024-06-14 15:25:41,249 INFO L231 Difference]: Finished difference. Result has 200 places, 211 transitions, 2313 flow [2024-06-14 15:25:41,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2273, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2313, PETRI_PLACES=200, PETRI_TRANSITIONS=211} [2024-06-14 15:25:41,251 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 156 predicate places. [2024-06-14 15:25:41,251 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 211 transitions, 2313 flow [2024-06-14 15:25:41,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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) [2024-06-14 15:25:41,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:41,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:41,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-14 15:25:41,255 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:41,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:41,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1924377296, now seen corresponding path program 3 times [2024-06-14 15:25:41,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:41,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776160589] [2024-06-14 15:25:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:54,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:54,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776160589] [2024-06-14 15:25:54,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776160589] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:54,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:54,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 15:25:54,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143087698] [2024-06-14 15:25:54,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:54,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 15:25:54,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 15:25:54,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 15:25:55,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:25:55,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 211 transitions, 2313 flow. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 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) [2024-06-14 15:25:55,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:55,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:25:55,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:57,425 INFO L124 PetriNetUnfolderBase]: 2888/4628 cut-off events. [2024-06-14 15:25:57,425 INFO L125 PetriNetUnfolderBase]: For 434835/434835 co-relation queries the response was YES. [2024-06-14 15:25:57,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39484 conditions, 4628 events. 2888/4628 cut-off events. For 434835/434835 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 27161 event pairs, 750 based on Foata normal form. 12/4633 useless extension candidates. Maximal degree in co-relation 39390. Up to 4231 conditions per place. [2024-06-14 15:25:57,467 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 220 selfloop transitions, 23 changer transitions 0/255 dead transitions. [2024-06-14 15:25:57,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 255 transitions, 3015 flow [2024-06-14 15:25:57,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:25:57,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:25:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2024-06-14 15:25:57,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41627906976744183 [2024-06-14 15:25:57,471 INFO L175 Difference]: Start difference. First operand has 200 places, 211 transitions, 2313 flow. Second operand 10 states and 179 transitions. [2024-06-14 15:25:57,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 255 transitions, 3015 flow [2024-06-14 15:25:57,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 255 transitions, 2885 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-06-14 15:25:57,990 INFO L231 Difference]: Finished difference. Result has 203 places, 215 transitions, 2330 flow [2024-06-14 15:25:57,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2183, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2330, PETRI_PLACES=203, PETRI_TRANSITIONS=215} [2024-06-14 15:25:57,991 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 159 predicate places. [2024-06-14 15:25:57,991 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 215 transitions, 2330 flow [2024-06-14 15:25:57,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 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) [2024-06-14 15:25:57,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:57,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:57,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-14 15:25:57,992 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:57,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:57,992 INFO L85 PathProgramCache]: Analyzing trace with hash 25419362, now seen corresponding path program 4 times [2024-06-14 15:25:57,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:57,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541676780] [2024-06-14 15:25:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15