./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.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/mix045_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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/mix045_power.oepc_pso.oepc_rmo.oepc.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix045_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 22:00:37,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 22:00:37,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 22:00:37,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 22:00:37,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 22:00:38,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 22:00:38,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 22:00:38,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 22:00:38,006 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 22:00:38,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 22:00:38,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 22:00:38,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 22:00:38,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 22:00:38,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 22:00:38,012 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 22:00:38,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 22:00:38,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 22:00:38,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 22:00:38,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 22:00:38,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 22:00:38,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 22:00:38,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 22:00:38,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 22:00:38,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 22:00:38,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 22:00:38,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 22:00:38,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 22:00:38,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 22:00:38,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 22:00:38,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 22:00:38,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 22:00:38,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 22:00:38,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:00:38,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 22:00:38,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 22:00:38,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 22:00:38,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 22:00:38,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 22:00:38,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 22:00:38,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 22:00:38,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 22:00:38,301 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 22:00:38,302 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 22:00:38,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2024-06-03 22:00:39,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 22:00:39,730 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 22:00:39,730 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_power.oepc_pso.oepc_rmo.oepc.i [2024-06-03 22:00:39,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a72a926/e5f02fd497994f948e416ff389fc5d28/FLAG3d8d83a09 [2024-06-03 22:00:39,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a72a926/e5f02fd497994f948e416ff389fc5d28 [2024-06-03 22:00:39,761 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 22:00:39,762 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 22:00:39,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix045_power.oepc_pso.oepc_rmo.oepc.yml/witness.yml [2024-06-03 22:00:40,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 22:00:40,001 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 22:00:40,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 22:00:40,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 22:00:40,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 22:00:40,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:00:39" (1/2) ... [2024-06-03 22:00:40,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca25702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:00:40, skipping insertion in model container [2024-06-03 22:00:40,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:00:39" (1/2) ... [2024-06-03 22:00:40,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11b0c081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:00:40, skipping insertion in model container [2024-06-03 22:00:40,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:00:40" (2/2) ... [2024-06-03 22:00:40,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca25702 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:40, skipping insertion in model container [2024-06-03 22:00:40,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:00:40" (2/2) ... [2024-06-03 22:00:40,014 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 22:00:40,134 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 22:00:40,135 INFO L97 edCorrectnessWitness]: Location invariant before [L847-L847] (((((((((((((((((((! multithreaded || a$read_delayed_var == 0) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )a$flush_delayed) + (long long )weak$$choice2 >= 0LL && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )x >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )z >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )a$flush_delayed >= 0LL) && (long long )a + (long long )a$mem_tmp >= 0LL) && (long long )a + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a + (long long )a$read_delayed >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff1 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )a$flush_delayed + (long long )a$mem_tmp >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$flush_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$flush_delayed + (long long )x >= 0LL) && (long long )a$flush_delayed + (long long )y >= 0LL) && (long long )a$flush_delayed + (long long )z >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff1 >= 0LL) && (long long )a$mem_tmp + (long long )main$tmp_guard1 >= 0LL) && (long long )a$mem_tmp + (long long )x >= 0LL) && (long long )a$mem_tmp + (long long )y >= 0LL) && (long long )a$mem_tmp + (long long )z >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice0 >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )x >= 0LL) && (long long )a$r_buff0_thd0 + (long long )y >= 0LL) && (long long )a$r_buff0_thd0 + (long long )z >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )x >= 0LL) && (long long )a$r_buff0_thd2 + (long long )y >= 0LL) && (long long )a$r_buff0_thd2 + (long long )z >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )x >= 0LL) && (long long )a$r_buff0_thd3 + (long long )y >= 0LL) && (long long )a$r_buff0_thd3 + (long long )z >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )x >= 0LL) && (long long )a$r_buff1_thd0 + (long long )y >= 0LL) && (long long )a$r_buff1_thd0 + (long long )z >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )x >= 0LL) && (long long )a$r_buff1_thd2 + (long long )y >= 0LL) && (long long )a$r_buff1_thd2 + (long long )z >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )x >= 0LL) && (long long )a$r_buff1_thd3 + (long long )y >= 0LL) && (long long )a$r_buff1_thd3 + (long long )z >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$read_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$read_delayed + (long long )x >= 0LL) && (long long )a$read_delayed + (long long )y >= 0LL) && (long long )a$read_delayed + (long long )z >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff1 + (long long )x >= 0LL) && (long long )a$w_buff1 + (long long )y >= 0LL) && (long long )a$w_buff1 + (long long )z >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$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 )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$w_buff0) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$read_delayed >= 0LL) && (long long )a - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a - (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= a$mem_tmp) && 0 <= a$w_buff0) && 0 <= a$w_buff1) && 0 <= x) && 0 <= y) && 0 <= z) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && a$mem_tmp <= 1) && a$w_buff0 <= 1) && a$w_buff1 <= 1) && z <= 1) && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2))) [2024-06-03 22:00:40,136 INFO L97 edCorrectnessWitness]: Location invariant before [L846-L846] (((((((((((((((((((! multithreaded || a$read_delayed_var == 0) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )a$flush_delayed) + (long long )weak$$choice2 >= 0LL && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )x >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )z >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )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_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )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 )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )a$flush_delayed >= 0LL) && (long long )a + (long long )a$mem_tmp >= 0LL) && (long long )a + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a + (long long )a$read_delayed >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff1 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )a$flush_delayed + (long long )a$mem_tmp >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$flush_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$flush_delayed + (long long )x >= 0LL) && (long long )a$flush_delayed + (long long )y >= 0LL) && (long long )a$flush_delayed + (long long )z >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff1 >= 0LL) && (long long )a$mem_tmp + (long long )main$tmp_guard1 >= 0LL) && (long long )a$mem_tmp + (long long )x >= 0LL) && (long long )a$mem_tmp + (long long )y >= 0LL) && (long long )a$mem_tmp + (long long )z >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice0 >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )x >= 0LL) && (long long )a$r_buff0_thd0 + (long long )y >= 0LL) && (long long )a$r_buff0_thd0 + (long long )z >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )x >= 0LL) && (long long )a$r_buff0_thd2 + (long long )y >= 0LL) && (long long )a$r_buff0_thd2 + (long long )z >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )x >= 0LL) && (long long )a$r_buff0_thd3 + (long long )y >= 0LL) && (long long )a$r_buff0_thd3 + (long long )z >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )x >= 0LL) && (long long )a$r_buff1_thd0 + (long long )y >= 0LL) && (long long )a$r_buff1_thd0 + (long long )z >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )x >= 0LL) && (long long )a$r_buff1_thd2 + (long long )y >= 0LL) && (long long )a$r_buff1_thd2 + (long long )z >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )x >= 0LL) && (long long )a$r_buff1_thd3 + (long long )y >= 0LL) && (long long )a$r_buff1_thd3 + (long long )z >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$read_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$read_delayed + (long long )x >= 0LL) && (long long )a$read_delayed + (long long )y >= 0LL) && (long long )a$read_delayed + (long long )z >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff1 + (long long )x >= 0LL) && (long long )a$w_buff1 + (long long )y >= 0LL) && (long long )a$w_buff1 + (long long )z >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$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 )y >= 0LL) && (long long )x + (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 )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$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$w_buff0) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$read_delayed >= 0LL) && (long long )a - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a - (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= a$mem_tmp) && 0 <= a$w_buff0) && 0 <= a$w_buff1) && 0 <= x) && 0 <= y) && 0 <= z) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && a$mem_tmp <= 1) && a$w_buff0 <= 1) && a$w_buff1 <= 1) && z <= 1) && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2))) [2024-06-03 22:00:40,137 INFO L97 edCorrectnessWitness]: Location invariant before [L844-L844] (((((((((((((((((((! multithreaded || a$read_delayed_var == 0) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || a$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || a$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )a$flush_delayed) + (long long )weak$$choice2 >= 0LL && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd1) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )x >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$r_buff1_thd3) + (long long )weak$$choice2 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )main$tmp_guard1 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )x >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )z >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice0 >= 0LL) && (0LL - (long long )a$read_delayed) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )x >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )y >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )z >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff0) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )x >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )y >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )z >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a$w_buff1) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )a$flush_delayed >= 0LL) && (long long )a + (long long )a$mem_tmp >= 0LL) && (long long )a + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a + (long long )a$read_delayed >= 0LL) && (long long )a + (long long )a$w_buff0 >= 0LL) && (long long )a + (long long )a$w_buff1 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )a$flush_delayed + (long long )a$mem_tmp >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed + (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$flush_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$flush_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$flush_delayed + (long long )x >= 0LL) && (long long )a$flush_delayed + (long long )y >= 0LL) && (long long )a$flush_delayed + (long long )z >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$flush_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp + (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff0 >= 0LL) && (long long )a$mem_tmp + (long long )a$w_buff1 >= 0LL) && (long long )a$mem_tmp + (long long )main$tmp_guard1 >= 0LL) && (long long )a$mem_tmp + (long long )x >= 0LL) && (long long )a$mem_tmp + (long long )y >= 0LL) && (long long )a$mem_tmp + (long long )z >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice0 >= 0LL) && (long long )a$mem_tmp + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )x >= 0LL) && (long long )a$r_buff0_thd0 + (long long )y >= 0LL) && (long long )a$r_buff0_thd0 + (long long )z >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )x >= 0LL) && (long long )a$r_buff0_thd2 + (long long )y >= 0LL) && (long long )a$r_buff0_thd2 + (long long )z >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )x >= 0LL) && (long long )a$r_buff0_thd3 + (long long )y >= 0LL) && (long long )a$r_buff0_thd3 + (long long )z >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff0_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )x >= 0LL) && (long long )a$r_buff1_thd0 + (long long )y >= 0LL) && (long long )a$r_buff1_thd0 + (long long )z >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd0 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )x >= 0LL) && (long long )a$r_buff1_thd2 + (long long )y >= 0LL) && (long long )a$r_buff1_thd2 + (long long )z >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd2 + (long long )weak$$choice2 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )a$w_buff1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )x >= 0LL) && (long long )a$r_buff1_thd3 + (long long )y >= 0LL) && (long long )a$r_buff1_thd3 + (long long )z >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice0 >= 0LL) && (long long )a$r_buff1_thd3 + (long long )weak$$choice2 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff0 >= 0LL) && (long long )a$read_delayed + (long long )a$w_buff1 >= 0LL) && (long long )a$read_delayed + (long long )main$tmp_guard1 >= 0LL) && (long long )a$read_delayed + (long long )x >= 0LL) && (long long )a$read_delayed + (long long )y >= 0LL) && (long long )a$read_delayed + (long long )z >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice0 >= 0LL) && (long long )a$read_delayed + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff0 + (long long )a$w_buff1 >= 0LL) && (long long )a$w_buff0 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff0 + (long long )x >= 0LL) && (long long )a$w_buff0 + (long long )y >= 0LL) && (long long )a$w_buff0 + (long long )z >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff0 + (long long )weak$$choice2 >= 0LL) && (long long )a$w_buff1 + (long long )main$tmp_guard1 >= 0LL) && (long long )a$w_buff1 + (long long )x >= 0LL) && (long long )a$w_buff1 + (long long )y >= 0LL) && (long long )a$w_buff1 + (long long )z >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice0 >= 0LL) && (long long )a$w_buff1 + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$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 )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$flush_delayed) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$mem_tmp) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL + (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff0_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd0 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff0_thd3) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd2 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd0) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$r_buff1_thd3 >= 0LL) && (0LL - (long long )a$r_buff1_thd2) - (long long )a$read_delayed >= 0LL) && (0LL - (long long )a$r_buff1_thd3) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff0_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff0_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd0 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff0_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff0_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$r_buff1_thd1 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd0) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd2 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$r_buff1_thd3 >= 0LL) && (1LL - (long long )a$r_buff1_thd1) - (long long )a$read_delayed >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd2) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$r_buff1_thd3) - (long long )a$w_buff1 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff0 >= 0LL) && (1LL - (long long )a$read_delayed) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$r_buff1_thd1 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff0_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff0 >= 0LL) && (2LL - (long long )a$r_buff1_thd1) - (long long )a$w_buff1 >= 0LL) && (2LL - (long long )a$w_buff0) - (long long )a$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )a$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )a$read_delayed >= 0LL) && (long long )a - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a - (long long )a$read_delayed >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$flush_delayed - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$flush_delayed - (long long )a$read_delayed >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$mem_tmp - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$mem_tmp - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff0_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd0 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff0_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd2 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd0 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$r_buff1_thd3 >= 0LL) && (long long )a$r_buff1_thd2 - (long long )a$read_delayed >= 0LL) && (long long )a$r_buff1_thd3 - (long long )a$read_delayed >= 0LL) && (long long )a$w_buff0 - (long long )a$w_buff1 >= 0LL))) && (! multithreaded || a$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || a$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= a$mem_tmp) && 0 <= a$w_buff0) && 0 <= a$w_buff1) && 0 <= x) && 0 <= y) && 0 <= z) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && a$mem_tmp <= 1) && a$w_buff0 <= 1) && a$w_buff1 <= 1) && z <= 1) && a$flush_delayed == (_Bool)0) && a$r_buff0_thd0 == (_Bool)0) && a$r_buff0_thd2 == (_Bool)0) && a$r_buff0_thd3 == (_Bool)0) && a$r_buff1_thd0 == (_Bool)0) && a$r_buff1_thd2 == (_Bool)0) && a$r_buff1_thd3 == (_Bool)0) && a$read_delayed == (_Bool)0) && a$read_delayed_var == 0) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (a$mem_tmp == 0 || a$mem_tmp == 1)) && (a$w_buff0 == 0 || a$w_buff0 == 1)) && (a$w_buff1 == 0 || a$w_buff1 == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((0 <= a$w_buff0 && a$w_buff0 <= 1) && (a$w_buff0 == 0 || a$w_buff0 == 1)))) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || a$read_delayed == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || a$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= a$w_buff1 && a$w_buff1 <= 1) && (a$w_buff1 == 0 || a$w_buff1 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || ((0 <= a$mem_tmp && a$mem_tmp <= 1) && (a$mem_tmp == 0 || a$mem_tmp == 1)))) && (! multithreaded || a$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2))) [2024-06-03 22:00:40,137 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 22:00:40,137 INFO L106 edCorrectnessWitness]: ghost_update [L842-L842] multithreaded = 1; [2024-06-03 22:00:40,183 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 22:00:40,576 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:00:40,590 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 22:00:40,993 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:00:41,034 INFO L206 MainTranslator]: Completed translation [2024-06-03 22:00:41,035 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41 WrapperNode [2024-06-03 22:00:41,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 22:00:41,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 22:00:41,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 22:00:41,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 22:00:41,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,237 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 126 [2024-06-03 22:00:41,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 22:00:41,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 22:00:41,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 22:00:41,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 22:00:41,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,319 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]. [2024-06-03 22:00:41,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 22:00:41,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 22:00:41,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 22:00:41,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 22:00:41,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (1/1) ... [2024-06-03 22:00:41,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:00:41,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 22:00:41,445 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) [2024-06-03 22:00:41,548 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 [2024-06-03 22:00:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 22:00:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 22:00:41,587 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-03 22:00:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-03 22:00:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-03 22:00:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-03 22:00:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-03 22:00:41,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-03 22:00:41,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 22:00:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 22:00:41,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 22:00:41,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 22:00:41,590 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 22:00:41,803 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 22:00:41,805 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 22:00:43,389 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 22:00:43,391 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 22:00:43,780 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 22:00:43,780 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 22:00:43,781 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:00:43 BoogieIcfgContainer [2024-06-03 22:00:43,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 22:00:43,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 22:00:43,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 22:00:43,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 22:00:43,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 10:00:39" (1/4) ... [2024-06-03 22:00:43,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ff0e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 10:00:43, skipping insertion in model container [2024-06-03 22:00:43,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:00:40" (2/4) ... [2024-06-03 22:00:43,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ff0e8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 10:00:43, skipping insertion in model container [2024-06-03 22:00:43,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:00:41" (3/4) ... [2024-06-03 22:00:43,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ff0e8b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 10:00:43, skipping insertion in model container [2024-06-03 22:00:43,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:00:43" (4/4) ... [2024-06-03 22:00:43,791 INFO L112 eAbstractionObserver]: Analyzing ICFG mix045_power.oepc_pso.oepc_rmo.oepc.i [2024-06-03 22:00:43,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 22:00:43,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-03 22:00:43,808 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 22:00:43,990 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-03 22:00:44,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 98 flow [2024-06-03 22:00:44,139 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-06-03 22:00:44,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:00:44,142 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 63 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. [2024-06-03 22:00:44,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 43 transitions, 98 flow [2024-06-03 22:00:44,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-06-03 22:00:44,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 22:00:44,191 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;@48625796, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 22:00:44,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-03 22:00:44,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 22:00:44,217 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 22:00:44,217 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:00:44,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:00:44,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 22:00:44,219 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)] === [2024-06-03 22:00:44,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:00:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1242904811, now seen corresponding path program 1 times [2024-06-03 22:00:44,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:00:44,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944127234] [2024-06-03 22:00:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:00:44,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:00:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:00:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:00:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:00:52,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944127234] [2024-06-03 22:00:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944127234] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:00:52,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:00:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 22:00:52,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853118994] [2024-06-03 22:00:52,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:00:52,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 22:00:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:00:52,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 22:00:52,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 22:00:53,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:00:53,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-06-03 22:00:53,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:00:53,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:00:53,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:00:54,787 INFO L124 PetriNetUnfolderBase]: 1911/2898 cut-off events. [2024-06-03 22:00:54,787 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-06-03 22:00:54,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5824 conditions, 2898 events. 1911/2898 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 13775 event pairs, 1379 based on Foata normal form. 1/2815 useless extension candidates. Maximal degree in co-relation 5809. Up to 2825 conditions per place. [2024-06-03 22:00:54,812 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 36 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-06-03 22:00:54,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 183 flow [2024-06-03 22:00:54,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 22:00:54,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 22:00:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-06-03 22:00:54,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5658914728682171 [2024-06-03 22:00:54,825 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 73 transitions. [2024-06-03 22:00:54,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 183 flow [2024-06-03 22:00:54,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 22:00:54,833 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 104 flow [2024-06-03 22:00:54,835 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} [2024-06-03 22:00:54,838 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-06-03 22:00:54,838 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 104 flow [2024-06-03 22:00:54,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-06-03 22:00:54,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:00:54,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:00:54,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 22:00:54,839 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)] === [2024-06-03 22:00:54,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:00:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash -430571596, now seen corresponding path program 1 times [2024-06-03 22:00:54,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:00:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798590791] [2024-06-03 22:00:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:00:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:00:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:01,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798590791] [2024-06-03 22:01:01,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798590791] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:01,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 22:01:01,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809168871] [2024-06-03 22:01:01,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:01,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 22:01:01,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:01,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 22:01:01,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-03 22:01:01,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:01:01,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-06-03 22:01:01,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:01,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:01:01,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:03,039 INFO L124 PetriNetUnfolderBase]: 1905/2889 cut-off events. [2024-06-03 22:01:03,039 INFO L125 PetriNetUnfolderBase]: For 518/518 co-relation queries the response was YES. [2024-06-03 22:01:03,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6512 conditions, 2889 events. 1905/2889 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 13747 event pairs, 1212 based on Foata normal form. 3/2848 useless extension candidates. Maximal degree in co-relation 6497. Up to 2801 conditions per place. [2024-06-03 22:01:03,056 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 43 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-06-03 22:01:03,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 250 flow [2024-06-03 22:01:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 22:01:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 22:01:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-06-03 22:01:03,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5406976744186046 [2024-06-03 22:01:03,060 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 104 flow. Second operand 4 states and 93 transitions. [2024-06-03 22:01:03,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 250 flow [2024-06-03 22:01:03,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 22:01:03,068 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 140 flow [2024-06-03 22:01:03,068 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} [2024-06-03 22:01:03,069 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-06-03 22:01:03,069 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 140 flow [2024-06-03 22:01:03,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-06-03 22:01:03,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:03,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:03,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 22:01:03,073 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)] === [2024-06-03 22:01:03,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:03,075 INFO L85 PathProgramCache]: Analyzing trace with hash -462816168, now seen corresponding path program 1 times [2024-06-03 22:01:03,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:03,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820078248] [2024-06-03 22:01:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:08,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:08,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820078248] [2024-06-03 22:01:08,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820078248] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:08,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:08,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 22:01:08,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754741229] [2024-06-03 22:01:08,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:08,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 22:01:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:08,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 22:01:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-03 22:01:09,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:01:09,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:09,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:09,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:01:09,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:10,538 INFO L124 PetriNetUnfolderBase]: 1913/2919 cut-off events. [2024-06-03 22:01:10,539 INFO L125 PetriNetUnfolderBase]: For 1479/1479 co-relation queries the response was YES. [2024-06-03 22:01:10,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7251 conditions, 2919 events. 1913/2919 cut-off events. For 1479/1479 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 13996 event pairs, 951 based on Foata normal form. 5/2891 useless extension candidates. Maximal degree in co-relation 7234. Up to 2747 conditions per place. [2024-06-03 22:01:10,556 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 56 selfloop transitions, 16 changer transitions 0/76 dead transitions. [2024-06-03 22:01:10,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 76 transitions, 404 flow [2024-06-03 22:01:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 22:01:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 22:01:10,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-03 22:01:10,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5627906976744186 [2024-06-03 22:01:10,561 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 140 flow. Second operand 5 states and 121 transitions. [2024-06-03 22:01:10,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 76 transitions, 404 flow [2024-06-03 22:01:10,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 76 transitions, 390 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-03 22:01:10,564 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 239 flow [2024-06-03 22:01:10,565 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=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=239, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2024-06-03 22:01:10,566 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2024-06-03 22:01:10,566 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 239 flow [2024-06-03 22:01:10,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:10,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:10,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:10,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 22:01:10,567 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)] === [2024-06-03 22:01:10,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:10,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1462397869, now seen corresponding path program 1 times [2024-06-03 22:01:10,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:10,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384253976] [2024-06-03 22:01:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:10,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:17,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:17,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384253976] [2024-06-03 22:01:17,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384253976] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:17,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:17,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:01:17,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884196482] [2024-06-03 22:01:17,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:17,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 22:01:17,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:17,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 22:01:17,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-03 22:01:17,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:01:17,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:17,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:17,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:01:17,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:19,127 INFO L124 PetriNetUnfolderBase]: 1921/2931 cut-off events. [2024-06-03 22:01:19,127 INFO L125 PetriNetUnfolderBase]: For 3454/3456 co-relation queries the response was YES. [2024-06-03 22:01:19,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8496 conditions, 2931 events. 1921/2931 cut-off events. For 3454/3456 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 14022 event pairs, 784 based on Foata normal form. 7/2905 useless extension candidates. Maximal degree in co-relation 8476. Up to 2733 conditions per place. [2024-06-03 22:01:19,143 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 63 selfloop transitions, 20 changer transitions 0/87 dead transitions. [2024-06-03 22:01:19,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 87 transitions, 531 flow [2024-06-03 22:01:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:01:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:01:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2024-06-03 22:01:19,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5503875968992248 [2024-06-03 22:01:19,145 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 239 flow. Second operand 6 states and 142 transitions. [2024-06-03 22:01:19,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 87 transitions, 531 flow [2024-06-03 22:01:19,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 87 transitions, 523 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-06-03 22:01:19,149 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 312 flow [2024-06-03 22:01:19,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-06-03 22:01:19,150 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2024-06-03 22:01:19,150 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 312 flow [2024-06-03 22:01:19,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:19,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:19,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:19,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 22:01:19,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:01:19,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1910307799, now seen corresponding path program 1 times [2024-06-03 22:01:19,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:19,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456419936] [2024-06-03 22:01:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:19,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:24,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456419936] [2024-06-03 22:01:24,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456419936] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:24,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:24,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:01:24,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861672116] [2024-06-03 22:01:24,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:24,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:01:24,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:24,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:01:24,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:01:24,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:01:24,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2024-06-03 22:01:24,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:24,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:01:24,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:26,259 INFO L124 PetriNetUnfolderBase]: 1933/2951 cut-off events. [2024-06-03 22:01:26,260 INFO L125 PetriNetUnfolderBase]: For 5433/5435 co-relation queries the response was YES. [2024-06-03 22:01:26,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9457 conditions, 2951 events. 1933/2951 cut-off events. For 5433/5435 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 14112 event pairs, 596 based on Foata normal form. 12/2930 useless extension candidates. Maximal degree in co-relation 9434. Up to 2701 conditions per place. [2024-06-03 22:01:26,284 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 67 selfloop transitions, 23 changer transitions 0/94 dead transitions. [2024-06-03 22:01:26,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 632 flow [2024-06-03 22:01:26,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:01:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:01:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2024-06-03 22:01:26,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5282392026578073 [2024-06-03 22:01:26,287 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 312 flow. Second operand 7 states and 159 transitions. [2024-06-03 22:01:26,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 632 flow [2024-06-03 22:01:26,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 583 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-06-03 22:01:26,299 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 339 flow [2024-06-03 22:01:26,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=339, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2024-06-03 22:01:26,302 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 16 predicate places. [2024-06-03 22:01:26,302 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 339 flow [2024-06-03 22:01:26,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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) [2024-06-03 22:01:26,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:26,304 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:26,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-03 22:01:26,305 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)] === [2024-06-03 22:01:26,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1014615233, now seen corresponding path program 1 times [2024-06-03 22:01:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:26,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084994286] [2024-06-03 22:01:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:26,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:37,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084994286] [2024-06-03 22:01:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084994286] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:37,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:01:37,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174220152] [2024-06-03 22:01:37,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:37,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 22:01:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:37,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 22:01:37,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-03 22:01:37,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:01:37,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:37,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:37,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:01:37,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:39,079 INFO L124 PetriNetUnfolderBase]: 1928/2940 cut-off events. [2024-06-03 22:01:39,079 INFO L125 PetriNetUnfolderBase]: For 7382/7382 co-relation queries the response was YES. [2024-06-03 22:01:39,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10051 conditions, 2940 events. 1928/2940 cut-off events. For 7382/7382 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 14018 event pairs, 776 based on Foata normal form. 2/2906 useless extension candidates. Maximal degree in co-relation 10027. Up to 2844 conditions per place. [2024-06-03 22:01:39,094 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 56 selfloop transitions, 8 changer transitions 0/68 dead transitions. [2024-06-03 22:01:39,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 495 flow [2024-06-03 22:01:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 22:01:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 22:01:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2024-06-03 22:01:39,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4325581395348837 [2024-06-03 22:01:39,096 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 339 flow. Second operand 5 states and 93 transitions. [2024-06-03 22:01:39,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 495 flow [2024-06-03 22:01:39,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 431 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-06-03 22:01:39,101 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 299 flow [2024-06-03 22:01:39,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2024-06-03 22:01:39,102 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 16 predicate places. [2024-06-03 22:01:39,102 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 299 flow [2024-06-03 22:01:39,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:01:39,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:39,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:39,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-03 22:01:39,103 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)] === [2024-06-03 22:01:39,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1379970497, now seen corresponding path program 1 times [2024-06-03 22:01:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:39,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014482876] [2024-06-03 22:01:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:39,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:01:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:01:51,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:01:51,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014482876] [2024-06-03 22:01:51,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014482876] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:01:51,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:01:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:01:51,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199520232] [2024-06-03 22:01:51,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:01:51,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:01:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:01:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:01:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:01:51,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:01:51,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 299 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:01:51,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:01:51,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:01:51,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:01:52,523 INFO L124 PetriNetUnfolderBase]: 1932/2970 cut-off events. [2024-06-03 22:01:52,523 INFO L125 PetriNetUnfolderBase]: For 8815/8815 co-relation queries the response was YES. [2024-06-03 22:01:52,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10113 conditions, 2970 events. 1932/2970 cut-off events. For 8815/8815 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 14275 event pairs, 727 based on Foata normal form. 6/2974 useless extension candidates. Maximal degree in co-relation 10087. Up to 2802 conditions per place. [2024-06-03 22:01:52,541 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 66 selfloop transitions, 17 changer transitions 0/87 dead transitions. [2024-06-03 22:01:52,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 87 transitions, 595 flow [2024-06-03 22:01:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:01:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:01:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2024-06-03 22:01:52,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-06-03 22:01:52,543 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 299 flow. Second operand 6 states and 117 transitions. [2024-06-03 22:01:52,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 87 transitions, 595 flow [2024-06-03 22:01:52,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 573 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-03 22:01:52,549 INFO L231 Difference]: Finished difference. Result has 64 places, 68 transitions, 408 flow [2024-06-03 22:01:52,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=64, PETRI_TRANSITIONS=68} [2024-06-03 22:01:52,550 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 20 predicate places. [2024-06-03 22:01:52,551 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 68 transitions, 408 flow [2024-06-03 22:01:52,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:01:52,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:01:52,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:01:52,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-03 22:01:52,552 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)] === [2024-06-03 22:01:52,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:01:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash -176308162, now seen corresponding path program 1 times [2024-06-03 22:01:52,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:01:52,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748100101] [2024-06-03 22:01:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:01:52,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:01:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:01,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:01,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748100101] [2024-06-03 22:02:01,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748100101] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:01,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:01,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:02:01,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896112366] [2024-06-03 22:02:01,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:01,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:02:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:02:01,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:02:01,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:01,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 68 transitions, 408 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:02:01,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:01,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:01,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:02,902 INFO L124 PetriNetUnfolderBase]: 1938/2989 cut-off events. [2024-06-03 22:02:02,902 INFO L125 PetriNetUnfolderBase]: For 12342/12346 co-relation queries the response was YES. [2024-06-03 22:02:02,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11225 conditions, 2989 events. 1938/2989 cut-off events. For 12342/12346 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 14389 event pairs, 750 based on Foata normal form. 8/2994 useless extension candidates. Maximal degree in co-relation 11197. Up to 2784 conditions per place. [2024-06-03 22:02:02,922 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 68 selfloop transitions, 19 changer transitions 0/91 dead transitions. [2024-06-03 22:02:02,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 682 flow [2024-06-03 22:02:02,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:02:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:02:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-06-03 22:02:02,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-03 22:02:02,924 INFO L175 Difference]: Start difference. First operand has 64 places, 68 transitions, 408 flow. Second operand 6 states and 118 transitions. [2024-06-03 22:02:02,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 91 transitions, 682 flow [2024-06-03 22:02:02,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 91 transitions, 664 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-06-03 22:02:02,935 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 462 flow [2024-06-03 22:02:02,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=462, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2024-06-03 22:02:02,936 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 25 predicate places. [2024-06-03 22:02:02,937 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 462 flow [2024-06-03 22:02:02,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:02:02,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:02,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:02,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-03 22:02:02,937 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)] === [2024-06-03 22:02:02,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 87693728, now seen corresponding path program 2 times [2024-06-03 22:02:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33327016] [2024-06-03 22:02:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:11,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33327016] [2024-06-03 22:02:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33327016] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:02:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255876215] [2024-06-03 22:02:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:11,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:02:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:02:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:02:11,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:11,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 462 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:02:11,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:11,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:11,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:13,063 INFO L124 PetriNetUnfolderBase]: 1923/2963 cut-off events. [2024-06-03 22:02:13,063 INFO L125 PetriNetUnfolderBase]: For 13824/13824 co-relation queries the response was YES. [2024-06-03 22:02:13,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11344 conditions, 2963 events. 1923/2963 cut-off events. For 13824/13824 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 14196 event pairs, 746 based on Foata normal form. 2/2962 useless extension candidates. Maximal degree in co-relation 11313. Up to 2825 conditions per place. [2024-06-03 22:02:13,081 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 71 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2024-06-03 22:02:13,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 86 transitions, 664 flow [2024-06-03 22:02:13,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:02:13,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:02:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2024-06-03 22:02:13,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42248062015503873 [2024-06-03 22:02:13,084 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 462 flow. Second operand 6 states and 109 transitions. [2024-06-03 22:02:13,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 86 transitions, 664 flow [2024-06-03 22:02:13,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 86 transitions, 635 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-03 22:02:13,099 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 463 flow [2024-06-03 22:02:13,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=463, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-06-03 22:02:13,100 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 28 predicate places. [2024-06-03 22:02:13,101 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 463 flow [2024-06-03 22:02:13,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 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) [2024-06-03 22:02:13,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:13,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:13,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-03 22:02:13,102 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)] === [2024-06-03 22:02:13,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:13,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1170584510, now seen corresponding path program 1 times [2024-06-03 22:02:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:13,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448527138] [2024-06-03 22:02:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:22,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:22,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:22,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448527138] [2024-06-03 22:02:22,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448527138] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:22,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:22,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:02:22,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961413256] [2024-06-03 22:02:22,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:22,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:02:22,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:02:22,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:02:22,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:22,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 463 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:22,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:22,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:22,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:23,971 INFO L124 PetriNetUnfolderBase]: 2091/3195 cut-off events. [2024-06-03 22:02:23,971 INFO L125 PetriNetUnfolderBase]: For 17186/17190 co-relation queries the response was YES. [2024-06-03 22:02:23,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12469 conditions, 3195 events. 2091/3195 cut-off events. For 17186/17190 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15314 event pairs, 649 based on Foata normal form. 13/3206 useless extension candidates. Maximal degree in co-relation 12437. Up to 2721 conditions per place. [2024-06-03 22:02:23,991 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 88 selfloop transitions, 31 changer transitions 0/123 dead transitions. [2024-06-03 22:02:23,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 123 transitions, 991 flow [2024-06-03 22:02:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:02:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:02:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 147 transitions. [2024-06-03 22:02:23,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2024-06-03 22:02:23,993 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 463 flow. Second operand 7 states and 147 transitions. [2024-06-03 22:02:23,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 123 transitions, 991 flow [2024-06-03 22:02:24,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 123 transitions, 944 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-06-03 22:02:24,008 INFO L231 Difference]: Finished difference. Result has 76 places, 90 transitions, 664 flow [2024-06-03 22:02:24,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=664, PETRI_PLACES=76, PETRI_TRANSITIONS=90} [2024-06-03 22:02:24,009 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 32 predicate places. [2024-06-03 22:02:24,009 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 90 transitions, 664 flow [2024-06-03 22:02:24,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:24,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:24,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:24,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-03 22:02:24,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:02:24,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1576460512, now seen corresponding path program 2 times [2024-06-03 22:02:24,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923461790] [2024-06-03 22:02:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:33,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:33,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923461790] [2024-06-03 22:02:33,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923461790] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:33,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:33,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:02:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003206259] [2024-06-03 22:02:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:33,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:02:33,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:33,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:02:33,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:02:33,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:33,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 90 transitions, 664 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:33,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:33,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:33,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:34,581 INFO L124 PetriNetUnfolderBase]: 2127/3250 cut-off events. [2024-06-03 22:02:34,581 INFO L125 PetriNetUnfolderBase]: For 22973/22973 co-relation queries the response was YES. [2024-06-03 22:02:34,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14613 conditions, 3250 events. 2127/3250 cut-off events. For 22973/22973 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 15566 event pairs, 695 based on Foata normal form. 6/3254 useless extension candidates. Maximal degree in co-relation 14577. Up to 3007 conditions per place. [2024-06-03 22:02:34,601 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 98 selfloop transitions, 23 changer transitions 0/125 dead transitions. [2024-06-03 22:02:34,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 125 transitions, 1148 flow [2024-06-03 22:02:34,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:02:34,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:02:34,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-03 22:02:34,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45514950166112955 [2024-06-03 22:02:34,603 INFO L175 Difference]: Start difference. First operand has 76 places, 90 transitions, 664 flow. Second operand 7 states and 137 transitions. [2024-06-03 22:02:34,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 125 transitions, 1148 flow [2024-06-03 22:02:34,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 125 transitions, 1104 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-06-03 22:02:34,629 INFO L231 Difference]: Finished difference. Result has 83 places, 98 transitions, 772 flow [2024-06-03 22:02:34,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=772, PETRI_PLACES=83, PETRI_TRANSITIONS=98} [2024-06-03 22:02:34,630 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 39 predicate places. [2024-06-03 22:02:34,630 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 98 transitions, 772 flow [2024-06-03 22:02:34,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:34,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:34,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:34,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-03 22:02:34,631 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)] === [2024-06-03 22:02:34,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash -993215840, now seen corresponding path program 3 times [2024-06-03 22:02:34,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56968951] [2024-06-03 22:02:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:43,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:43,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56968951] [2024-06-03 22:02:43,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56968951] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:43,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:43,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:02:43,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146436124] [2024-06-03 22:02:43,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:43,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:02:43,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:02:43,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:02:43,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:43,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 98 transitions, 772 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:43,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:43,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:43,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:45,341 INFO L124 PetriNetUnfolderBase]: 2131/3256 cut-off events. [2024-06-03 22:02:45,341 INFO L125 PetriNetUnfolderBase]: For 27428/27428 co-relation queries the response was YES. [2024-06-03 22:02:45,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15261 conditions, 3256 events. 2131/3256 cut-off events. For 27428/27428 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15582 event pairs, 689 based on Foata normal form. 6/3260 useless extension candidates. Maximal degree in co-relation 15221. Up to 3076 conditions per place. [2024-06-03 22:02:45,358 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 101 selfloop transitions, 21 changer transitions 0/126 dead transitions. [2024-06-03 22:02:45,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 126 transitions, 1176 flow [2024-06-03 22:02:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:02:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:02:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-03 22:02:45,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 22:02:45,360 INFO L175 Difference]: Start difference. First operand has 83 places, 98 transitions, 772 flow. Second operand 7 states and 133 transitions. [2024-06-03 22:02:45,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 126 transitions, 1176 flow [2024-06-03 22:02:45,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 126 transitions, 1127 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-06-03 22:02:45,386 INFO L231 Difference]: Finished difference. Result has 88 places, 104 transitions, 850 flow [2024-06-03 22:02:45,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=850, PETRI_PLACES=88, PETRI_TRANSITIONS=104} [2024-06-03 22:02:45,388 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 44 predicate places. [2024-06-03 22:02:45,388 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 104 transitions, 850 flow [2024-06-03 22:02:45,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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) [2024-06-03 22:02:45,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:45,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:45,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-03 22:02:45,391 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)] === [2024-06-03 22:02:45,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -993206912, now seen corresponding path program 1 times [2024-06-03 22:02:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:45,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313347138] [2024-06-03 22:02:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:45,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:02:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:02:57,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:02:57,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313347138] [2024-06-03 22:02:57,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313347138] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:02:57,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:02:57,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:02:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820641303] [2024-06-03 22:02:57,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:02:57,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:02:57,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:02:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:02:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:02:57,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:02:57,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 104 transitions, 850 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:02:57,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:02:57,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:02:57,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:02:59,302 INFO L124 PetriNetUnfolderBase]: 2134/3260 cut-off events. [2024-06-03 22:02:59,302 INFO L125 PetriNetUnfolderBase]: For 30079/30079 co-relation queries the response was YES. [2024-06-03 22:02:59,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15631 conditions, 3260 events. 2134/3260 cut-off events. For 30079/30079 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15608 event pairs, 668 based on Foata normal form. 6/3264 useless extension candidates. Maximal degree in co-relation 15589. Up to 3061 conditions per place. [2024-06-03 22:02:59,319 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 100 selfloop transitions, 25 changer transitions 0/129 dead transitions. [2024-06-03 22:02:59,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 129 transitions, 1234 flow [2024-06-03 22:02:59,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:02:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:02:59,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-03 22:02:59,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-03 22:02:59,320 INFO L175 Difference]: Start difference. First operand has 88 places, 104 transitions, 850 flow. Second operand 7 states and 134 transitions. [2024-06-03 22:02:59,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 129 transitions, 1234 flow [2024-06-03 22:02:59,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 129 transitions, 1181 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-06-03 22:02:59,341 INFO L231 Difference]: Finished difference. Result has 91 places, 107 transitions, 893 flow [2024-06-03 22:02:59,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=893, PETRI_PLACES=91, PETRI_TRANSITIONS=107} [2024-06-03 22:02:59,342 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 47 predicate places. [2024-06-03 22:02:59,342 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 107 transitions, 893 flow [2024-06-03 22:02:59,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:02:59,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:02:59,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:02:59,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-03 22:02:59,343 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:02:59,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:02:59,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1695884517, now seen corresponding path program 1 times [2024-06-03 22:02:59,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:02:59,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759782643] [2024-06-03 22:02:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:02:59,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:02:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:03:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:03:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:03:13,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759782643] [2024-06-03 22:03:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759782643] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:03:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:03:13,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:03:13,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543245498] [2024-06-03 22:03:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:03:13,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 22:03:13,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:03:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 22:03:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-03 22:03:13,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:03:13,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 107 transitions, 893 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-06-03 22:03:13,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:03:13,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:03:13,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:03:14,433 INFO L124 PetriNetUnfolderBase]: 2131/3256 cut-off events. [2024-06-03 22:03:14,433 INFO L125 PetriNetUnfolderBase]: For 32999/32999 co-relation queries the response was YES. [2024-06-03 22:03:14,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16076 conditions, 3256 events. 2131/3256 cut-off events. For 32999/32999 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15610 event pairs, 692 based on Foata normal form. 1/3255 useless extension candidates. Maximal degree in co-relation 16033. Up to 3137 conditions per place. [2024-06-03 22:03:14,452 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 103 selfloop transitions, 8 changer transitions 0/115 dead transitions. [2024-06-03 22:03:14,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 115 transitions, 1135 flow [2024-06-03 22:03:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 22:03:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 22:03:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-06-03 22:03:14,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.413953488372093 [2024-06-03 22:03:14,453 INFO L175 Difference]: Start difference. First operand has 91 places, 107 transitions, 893 flow. Second operand 5 states and 89 transitions. [2024-06-03 22:03:14,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 115 transitions, 1135 flow [2024-06-03 22:03:14,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 115 transitions, 1055 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-06-03 22:03:14,475 INFO L231 Difference]: Finished difference. Result has 91 places, 107 transitions, 835 flow [2024-06-03 22:03:14,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=835, PETRI_PLACES=91, PETRI_TRANSITIONS=107} [2024-06-03 22:03:14,476 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 47 predicate places. [2024-06-03 22:03:14,476 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 107 transitions, 835 flow [2024-06-03 22:03:14,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2024-06-03 22:03:14,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:03:14,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:03:14,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-03 22:03:14,477 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:03:14,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:03:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1932195427, now seen corresponding path program 1 times [2024-06-03 22:03:14,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:03:14,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425613690] [2024-06-03 22:03:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:03:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:03:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:03:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:03:24,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:03:24,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425613690] [2024-06-03 22:03:24,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425613690] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:03:24,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:03:24,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:03:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766116646] [2024-06-03 22:03:24,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:03:24,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:03:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:03:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:03:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:03:24,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:03:24,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 107 transitions, 835 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:24,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:03:24,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:03:24,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:03:26,217 INFO L124 PetriNetUnfolderBase]: 2142/3273 cut-off events. [2024-06-03 22:03:26,217 INFO L125 PetriNetUnfolderBase]: For 36345/36351 co-relation queries the response was YES. [2024-06-03 22:03:26,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16247 conditions, 3273 events. 2142/3273 cut-off events. For 36345/36351 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15692 event pairs, 675 based on Foata normal form. 8/3279 useless extension candidates. Maximal degree in co-relation 16203. Up to 3032 conditions per place. [2024-06-03 22:03:26,235 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 110 selfloop transitions, 26 changer transitions 0/140 dead transitions. [2024-06-03 22:03:26,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 140 transitions, 1309 flow [2024-06-03 22:03:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:03:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:03:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-03 22:03:26,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45514950166112955 [2024-06-03 22:03:26,237 INFO L175 Difference]: Start difference. First operand has 91 places, 107 transitions, 835 flow. Second operand 7 states and 137 transitions. [2024-06-03 22:03:26,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 140 transitions, 1309 flow [2024-06-03 22:03:26,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 140 transitions, 1285 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-06-03 22:03:26,260 INFO L231 Difference]: Finished difference. Result has 94 places, 113 transitions, 957 flow [2024-06-03 22:03:26,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=957, PETRI_PLACES=94, PETRI_TRANSITIONS=113} [2024-06-03 22:03:26,260 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 50 predicate places. [2024-06-03 22:03:26,261 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 113 transitions, 957 flow [2024-06-03 22:03:26,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:26,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:03:26,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:03:26,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-03 22:03:26,261 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)] === [2024-06-03 22:03:26,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:03:26,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1932105217, now seen corresponding path program 2 times [2024-06-03 22:03:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:03:26,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795865230] [2024-06-03 22:03:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:03:26,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:03:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:03:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:03:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:03:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795865230] [2024-06-03 22:03:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795865230] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:03:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:03:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:03:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007799091] [2024-06-03 22:03:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:03:37,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:03:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:03:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:03:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:03:37,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:03:37,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 113 transitions, 957 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:37,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:03:37,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:03:37,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:03:38,779 INFO L124 PetriNetUnfolderBase]: 2137/3266 cut-off events. [2024-06-03 22:03:38,780 INFO L125 PetriNetUnfolderBase]: For 41193/41199 co-relation queries the response was YES. [2024-06-03 22:03:38,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16877 conditions, 3266 events. 2137/3266 cut-off events. For 41193/41199 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15658 event pairs, 675 based on Foata normal form. 8/3272 useless extension candidates. Maximal degree in co-relation 16833. Up to 3060 conditions per place. [2024-06-03 22:03:38,796 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 109 selfloop transitions, 22 changer transitions 0/135 dead transitions. [2024-06-03 22:03:38,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 135 transitions, 1275 flow [2024-06-03 22:03:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:03:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:03:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-03 22:03:38,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2024-06-03 22:03:38,798 INFO L175 Difference]: Start difference. First operand has 94 places, 113 transitions, 957 flow. Second operand 7 states and 132 transitions. [2024-06-03 22:03:38,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 135 transitions, 1275 flow [2024-06-03 22:03:38,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 135 transitions, 1194 flow, removed 31 selfloop flow, removed 3 redundant places. [2024-06-03 22:03:38,826 INFO L231 Difference]: Finished difference. Result has 98 places, 113 transitions, 928 flow [2024-06-03 22:03:38,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=928, PETRI_PLACES=98, PETRI_TRANSITIONS=113} [2024-06-03 22:03:38,827 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 54 predicate places. [2024-06-03 22:03:38,827 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 113 transitions, 928 flow [2024-06-03 22:03:38,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:38,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:03:38,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:03:38,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-03 22:03:38,828 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)] === [2024-06-03 22:03:38,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:03:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1928385992, now seen corresponding path program 1 times [2024-06-03 22:03:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:03:38,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90842165] [2024-06-03 22:03:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:03:38,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:03:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:03:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:03:48,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:03:48,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90842165] [2024-06-03 22:03:48,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90842165] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:03:48,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:03:48,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:03:48,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609565511] [2024-06-03 22:03:48,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:03:48,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:03:48,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:03:48,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:03:48,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:03:48,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:03:48,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 113 transitions, 928 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:48,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:03:48,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:03:48,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:03:49,671 INFO L124 PetriNetUnfolderBase]: 2173/3312 cut-off events. [2024-06-03 22:03:49,671 INFO L125 PetriNetUnfolderBase]: For 45843/45849 co-relation queries the response was YES. [2024-06-03 22:03:49,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17390 conditions, 3312 events. 2173/3312 cut-off events. For 45843/45849 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 15829 event pairs, 636 based on Foata normal form. 8/3318 useless extension candidates. Maximal degree in co-relation 17344. Up to 2785 conditions per place. [2024-06-03 22:03:49,687 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 103 selfloop transitions, 47 changer transitions 0/154 dead transitions. [2024-06-03 22:03:49,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 154 transitions, 1558 flow [2024-06-03 22:03:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:03:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:03:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 149 transitions. [2024-06-03 22:03:49,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4950166112956811 [2024-06-03 22:03:49,688 INFO L175 Difference]: Start difference. First operand has 98 places, 113 transitions, 928 flow. Second operand 7 states and 149 transitions. [2024-06-03 22:03:49,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 154 transitions, 1558 flow [2024-06-03 22:03:49,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 154 transitions, 1503 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-06-03 22:03:49,719 INFO L231 Difference]: Finished difference. Result has 101 places, 121 transitions, 1129 flow [2024-06-03 22:03:49,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1129, PETRI_PLACES=101, PETRI_TRANSITIONS=121} [2024-06-03 22:03:49,720 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 57 predicate places. [2024-06-03 22:03:49,720 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 121 transitions, 1129 flow [2024-06-03 22:03:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:49,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:03:49,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:03:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-03 22:03:49,721 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)] === [2024-06-03 22:03:49,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:03:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash 752876506, now seen corresponding path program 2 times [2024-06-03 22:03:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:03:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768695717] [2024-06-03 22:03:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:03:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:03:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:03:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:03:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:03:59,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768695717] [2024-06-03 22:03:59,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768695717] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:03:59,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:03:59,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:03:59,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912605595] [2024-06-03 22:03:59,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:03:59,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:03:59,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:03:59,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:03:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:03:59,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:03:59,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 121 transitions, 1129 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:03:59,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:03:59,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:03:59,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:04:00,494 INFO L124 PetriNetUnfolderBase]: 2209/3364 cut-off events. [2024-06-03 22:04:00,494 INFO L125 PetriNetUnfolderBase]: For 53315/53321 co-relation queries the response was YES. [2024-06-03 22:04:00,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18849 conditions, 3364 events. 2209/3364 cut-off events. For 53315/53321 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16094 event pairs, 634 based on Foata normal form. 8/3370 useless extension candidates. Maximal degree in co-relation 18800. Up to 2815 conditions per place. [2024-06-03 22:04:00,513 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 102 selfloop transitions, 48 changer transitions 0/154 dead transitions. [2024-06-03 22:04:00,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 154 transitions, 1685 flow [2024-06-03 22:04:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:04:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:04:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2024-06-03 22:04:00,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47840531561461797 [2024-06-03 22:04:00,514 INFO L175 Difference]: Start difference. First operand has 101 places, 121 transitions, 1129 flow. Second operand 7 states and 144 transitions. [2024-06-03 22:04:00,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 154 transitions, 1685 flow [2024-06-03 22:04:00,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 154 transitions, 1598 flow, removed 22 selfloop flow, removed 3 redundant places. [2024-06-03 22:04:00,562 INFO L231 Difference]: Finished difference. Result has 105 places, 125 transitions, 1206 flow [2024-06-03 22:04:00,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1049, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1206, PETRI_PLACES=105, PETRI_TRANSITIONS=125} [2024-06-03 22:04:00,563 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 61 predicate places. [2024-06-03 22:04:00,563 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 125 transitions, 1206 flow [2024-06-03 22:04:00,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:04:00,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:04:00,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:04:00,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-03 22:04:00,564 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)] === [2024-06-03 22:04:00,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:04:00,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1618282936, now seen corresponding path program 3 times [2024-06-03 22:04:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:04:00,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736819564] [2024-06-03 22:04:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:04:00,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:04:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:04:09,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:04:09,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:04:09,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736819564] [2024-06-03 22:04:09,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736819564] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:04:09,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:04:09,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:04:09,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171120579] [2024-06-03 22:04:09,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:04:09,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:04:09,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:04:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:04:09,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:04:09,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:04:09,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 125 transitions, 1206 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:04:09,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:04:09,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:04:09,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:04:10,988 INFO L124 PetriNetUnfolderBase]: 2213/3377 cut-off events. [2024-06-03 22:04:10,988 INFO L125 PetriNetUnfolderBase]: For 57764/57770 co-relation queries the response was YES. [2024-06-03 22:04:10,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19053 conditions, 3377 events. 2213/3377 cut-off events. For 57764/57770 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16273 event pairs, 678 based on Foata normal form. 12/3387 useless extension candidates. Maximal degree in co-relation 19003. Up to 3164 conditions per place. [2024-06-03 22:04:11,010 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 124 selfloop transitions, 23 changer transitions 0/151 dead transitions. [2024-06-03 22:04:11,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 151 transitions, 1651 flow [2024-06-03 22:04:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:04:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:04:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-03 22:04:11,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-03 22:04:11,012 INFO L175 Difference]: Start difference. First operand has 105 places, 125 transitions, 1206 flow. Second operand 7 states and 134 transitions. [2024-06-03 22:04:11,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 151 transitions, 1651 flow [2024-06-03 22:04:11,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 151 transitions, 1560 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-06-03 22:04:11,051 INFO L231 Difference]: Finished difference. Result has 108 places, 129 transitions, 1235 flow [2024-06-03 22:04:11,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1235, PETRI_PLACES=108, PETRI_TRANSITIONS=129} [2024-06-03 22:04:11,053 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 64 predicate places. [2024-06-03 22:04:11,053 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 129 transitions, 1235 flow [2024-06-03 22:04:11,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-06-03 22:04:11,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:04:11,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:04:11,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-03 22:04:11,054 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)] === [2024-06-03 22:04:11,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:04:11,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1618015809, now seen corresponding path program 1 times [2024-06-03 22:04:11,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:04:11,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615638395] [2024-06-03 22:04:11,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:04:11,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:04:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:04:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:04:20,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:04:20,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615638395] [2024-06-03 22:04:20,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615638395] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:04:20,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:04:20,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:04:20,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237371577] [2024-06-03 22:04:20,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:04:20,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:04:20,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:04:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:04:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:04:21,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:04:21,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 129 transitions, 1235 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:04:21,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:04:21,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:04:21,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:04:22,416 INFO L124 PetriNetUnfolderBase]: 2215/3378 cut-off events. [2024-06-03 22:04:22,417 INFO L125 PetriNetUnfolderBase]: For 61709/61709 co-relation queries the response was YES. [2024-06-03 22:04:22,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19163 conditions, 3378 events. 2215/3378 cut-off events. For 61709/61709 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 16236 event pairs, 665 based on Foata normal form. 3/3379 useless extension candidates. Maximal degree in co-relation 19112. Up to 3168 conditions per place. [2024-06-03 22:04:22,438 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 120 selfloop transitions, 30 changer transitions 0/154 dead transitions. [2024-06-03 22:04:22,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 154 transitions, 1683 flow [2024-06-03 22:04:22,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:04:22,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:04:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-03 22:04:22,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-03 22:04:22,441 INFO L175 Difference]: Start difference. First operand has 108 places, 129 transitions, 1235 flow. Second operand 7 states and 134 transitions. [2024-06-03 22:04:22,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 154 transitions, 1683 flow [2024-06-03 22:04:22,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 154 transitions, 1614 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-03 22:04:22,497 INFO L231 Difference]: Finished difference. Result has 110 places, 133 transitions, 1304 flow [2024-06-03 22:04:22,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1304, PETRI_PLACES=110, PETRI_TRANSITIONS=133} [2024-06-03 22:04:22,497 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 66 predicate places. [2024-06-03 22:04:22,497 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 133 transitions, 1304 flow [2024-06-03 22:04:22,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:04:22,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:04:22,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:04:22,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-03 22:04:22,498 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:04:22,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:04:22,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1032810593, now seen corresponding path program 1 times [2024-06-03 22:04:22,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:04:22,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674739884] [2024-06-03 22:04:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:04:22,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:04:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:04:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:04:37,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:04:37,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674739884] [2024-06-03 22:04:37,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674739884] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:04:37,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:04:37,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:04:37,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635559773] [2024-06-03 22:04:37,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:04:37,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:04:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:04:37,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:04:37,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:04:37,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-03 22:04:37,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 133 transitions, 1304 flow. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-06-03 22:04:37,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:04:37,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-03 22:04:37,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:04:39,257 INFO L124 PetriNetUnfolderBase]: 2464/3631 cut-off events. [2024-06-03 22:04:39,257 INFO L125 PetriNetUnfolderBase]: For 75508/75508 co-relation queries the response was YES. [2024-06-03 22:04:39,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21697 conditions, 3631 events. 2464/3631 cut-off events. For 75508/75508 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 16689 event pairs, 778 based on Foata normal form. 1/3630 useless extension candidates. Maximal degree in co-relation 21645. Up to 3612 conditions per place. [2024-06-03 22:04:39,277 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 131 selfloop transitions, 11 changer transitions 0/145 dead transitions. [2024-06-03 22:04:39,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 145 transitions, 1636 flow [2024-06-03 22:04:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:04:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:04:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2024-06-03 22:04:39,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.375968992248062 [2024-06-03 22:04:39,278 INFO L175 Difference]: Start difference. First operand has 110 places, 133 transitions, 1304 flow. Second operand 6 states and 97 transitions. [2024-06-03 22:04:39,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 145 transitions, 1636 flow [2024-06-03 22:04:39,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 145 transitions, 1548 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-06-03 22:04:39,322 INFO L231 Difference]: Finished difference. Result has 111 places, 136 transitions, 1276 flow [2024-06-03 22:04:39,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=111, PETRI_TRANSITIONS=136} [2024-06-03 22:04:39,323 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 67 predicate places. [2024-06-03 22:04:39,323 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 136 transitions, 1276 flow [2024-06-03 22:04:39,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2024-06-03 22:04:39,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:04:39,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:04:39,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-03 22:04:39,323 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)] === [2024-06-03 22:04:39,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:04:39,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1139518059, now seen corresponding path program 1 times [2024-06-03 22:04:39,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:04:39,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288923456] [2024-06-03 22:04:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:04:39,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:04:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:04:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:04:49,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:04:49,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288923456] [2024-06-03 22:04:49,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288923456] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:04:49,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:04:49,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:04:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554237421] [2024-06-03 22:04:49,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:04:49,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:04:49,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:04:49,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:04:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:04:50,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:04:50,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 136 transitions, 1276 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:04:50,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:04:50,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:04:50,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:04:51,558 INFO L124 PetriNetUnfolderBase]: 2301/3479 cut-off events. [2024-06-03 22:04:51,559 INFO L125 PetriNetUnfolderBase]: For 82461/82467 co-relation queries the response was YES. [2024-06-03 22:04:51,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21484 conditions, 3479 events. 2301/3479 cut-off events. For 82461/82467 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 16745 event pairs, 533 based on Foata normal form. 10/3487 useless extension candidates. Maximal degree in co-relation 21431. Up to 3136 conditions per place. [2024-06-03 22:04:51,578 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 136 selfloop transitions, 32 changer transitions 0/173 dead transitions. [2024-06-03 22:04:51,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 173 transitions, 1874 flow [2024-06-03 22:04:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:04:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:04:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-03 22:04:51,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-03 22:04:51,579 INFO L175 Difference]: Start difference. First operand has 111 places, 136 transitions, 1276 flow. Second operand 8 states and 154 transitions. [2024-06-03 22:04:51,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 173 transitions, 1874 flow [2024-06-03 22:04:51,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 173 transitions, 1836 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-03 22:04:51,619 INFO L231 Difference]: Finished difference. Result has 115 places, 140 transitions, 1413 flow [2024-06-03 22:04:51,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1413, PETRI_PLACES=115, PETRI_TRANSITIONS=140} [2024-06-03 22:04:51,619 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 71 predicate places. [2024-06-03 22:04:51,619 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 140 transitions, 1413 flow [2024-06-03 22:04:51,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:04:51,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:04:51,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:04:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-03 22:04:51,620 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)] === [2024-06-03 22:04:51,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:04:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1139520849, now seen corresponding path program 2 times [2024-06-03 22:04:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:04:51,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281566535] [2024-06-03 22:04:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:04:51,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:04:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:00,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281566535] [2024-06-03 22:05:00,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281566535] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:00,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:00,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647533923] [2024-06-03 22:05:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:00,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:00,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:00,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:05:00,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 140 transitions, 1413 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:00,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:00,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:05:00,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:05:02,287 INFO L124 PetriNetUnfolderBase]: 2318/3506 cut-off events. [2024-06-03 22:05:02,287 INFO L125 PetriNetUnfolderBase]: For 91072/91078 co-relation queries the response was YES. [2024-06-03 22:05:02,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22292 conditions, 3506 events. 2318/3506 cut-off events. For 91072/91078 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 16861 event pairs, 674 based on Foata normal form. 10/3514 useless extension candidates. Maximal degree in co-relation 22238. Up to 3245 conditions per place. [2024-06-03 22:05:02,306 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 139 selfloop transitions, 28 changer transitions 0/172 dead transitions. [2024-06-03 22:05:02,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 172 transitions, 1877 flow [2024-06-03 22:05:02,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:05:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:05:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-03 22:05:02,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.438953488372093 [2024-06-03 22:05:02,309 INFO L175 Difference]: Start difference. First operand has 115 places, 140 transitions, 1413 flow. Second operand 8 states and 151 transitions. [2024-06-03 22:05:02,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 172 transitions, 1877 flow [2024-06-03 22:05:02,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 172 transitions, 1769 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-06-03 22:05:02,363 INFO L231 Difference]: Finished difference. Result has 119 places, 142 transitions, 1426 flow [2024-06-03 22:05:02,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1321, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1426, PETRI_PLACES=119, PETRI_TRANSITIONS=142} [2024-06-03 22:05:02,364 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 75 predicate places. [2024-06-03 22:05:02,364 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 142 transitions, 1426 flow [2024-06-03 22:05:02,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:02,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:05:02,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:05:02,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-03 22:05:02,364 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:05:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:05:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1139520973, now seen corresponding path program 1 times [2024-06-03 22:05:02,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:05:02,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343887995] [2024-06-03 22:05:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:05:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:05:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:13,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:13,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343887995] [2024-06-03 22:05:13,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343887995] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:13,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:13,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:13,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362109446] [2024-06-03 22:05:13,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:13,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:13,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:13,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:13,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:13,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:05:13,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 142 transitions, 1426 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:13,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:13,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:05:13,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:05:15,189 INFO L124 PetriNetUnfolderBase]: 2385/3598 cut-off events. [2024-06-03 22:05:15,189 INFO L125 PetriNetUnfolderBase]: For 99126/99132 co-relation queries the response was YES. [2024-06-03 22:05:15,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22949 conditions, 3598 events. 2385/3598 cut-off events. For 99126/99132 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17380 event pairs, 548 based on Foata normal form. 8/3604 useless extension candidates. Maximal degree in co-relation 22893. Up to 2744 conditions per place. [2024-06-03 22:05:15,211 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 130 selfloop transitions, 65 changer transitions 0/200 dead transitions. [2024-06-03 22:05:15,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 200 transitions, 2456 flow [2024-06-03 22:05:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:05:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:05:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2024-06-03 22:05:15,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49709302325581395 [2024-06-03 22:05:15,213 INFO L175 Difference]: Start difference. First operand has 119 places, 142 transitions, 1426 flow. Second operand 8 states and 171 transitions. [2024-06-03 22:05:15,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 200 transitions, 2456 flow [2024-06-03 22:05:15,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 200 transitions, 2373 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-06-03 22:05:15,267 INFO L231 Difference]: Finished difference. Result has 124 places, 157 transitions, 1729 flow [2024-06-03 22:05:15,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1729, PETRI_PLACES=124, PETRI_TRANSITIONS=157} [2024-06-03 22:05:15,268 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 80 predicate places. [2024-06-03 22:05:15,268 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 157 transitions, 1729 flow [2024-06-03 22:05:15,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:15,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:05:15,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:05:15,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-03 22:05:15,269 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)] === [2024-06-03 22:05:15,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:05:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1142322133, now seen corresponding path program 2 times [2024-06-03 22:05:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:05:15,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802519081] [2024-06-03 22:05:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:05:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:05:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:27,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:27,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:27,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802519081] [2024-06-03 22:05:27,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802519081] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:27,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:27,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:27,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83803168] [2024-06-03 22:05:27,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:27,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:27,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:27,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:27,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:27,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 22:05:27,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 157 transitions, 1729 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:05:27,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:27,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 22:05:27,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:05:29,038 INFO L124 PetriNetUnfolderBase]: 2426/3655 cut-off events. [2024-06-03 22:05:29,039 INFO L125 PetriNetUnfolderBase]: For 111370/111376 co-relation queries the response was YES. [2024-06-03 22:05:29,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25011 conditions, 3655 events. 2426/3655 cut-off events. For 111370/111376 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 17677 event pairs, 586 based on Foata normal form. 8/3661 useless extension candidates. Maximal degree in co-relation 24951. Up to 3065 conditions per place. [2024-06-03 22:05:29,062 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 136 selfloop transitions, 53 changer transitions 0/194 dead transitions. [2024-06-03 22:05:29,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 194 transitions, 2408 flow [2024-06-03 22:05:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:05:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:05:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2024-06-03 22:05:29,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-03 22:05:29,063 INFO L175 Difference]: Start difference. First operand has 124 places, 157 transitions, 1729 flow. Second operand 8 states and 172 transitions. [2024-06-03 22:05:29,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 194 transitions, 2408 flow [2024-06-03 22:05:29,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 194 transitions, 2299 flow, removed 46 selfloop flow, removed 2 redundant places. [2024-06-03 22:05:29,132 INFO L231 Difference]: Finished difference. Result has 130 places, 161 transitions, 1812 flow [2024-06-03 22:05:29,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1628, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1812, PETRI_PLACES=130, PETRI_TRANSITIONS=161} [2024-06-03 22:05:29,132 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 86 predicate places. [2024-06-03 22:05:29,132 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 161 transitions, 1812 flow [2024-06-03 22:05:29,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:05:29,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:05:29,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:05:29,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-03 22:05:29,133 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)] === [2024-06-03 22:05:29,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:05:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1142317483, now seen corresponding path program 3 times [2024-06-03 22:05:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:05:29,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253277806] [2024-06-03 22:05:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:05:29,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:05:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:37,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:37,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253277806] [2024-06-03 22:05:37,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253277806] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:37,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:37,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:37,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615787195] [2024-06-03 22:05:37,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:37,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:37,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:37,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:37,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:38,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:05:38,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 161 transitions, 1812 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:38,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:38,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:05:38,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:05:39,710 INFO L124 PetriNetUnfolderBase]: 2486/3740 cut-off events. [2024-06-03 22:05:39,710 INFO L125 PetriNetUnfolderBase]: For 120982/120988 co-relation queries the response was YES. [2024-06-03 22:05:39,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26181 conditions, 3740 events. 2486/3740 cut-off events. For 120982/120988 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 18127 event pairs, 597 based on Foata normal form. 8/3746 useless extension candidates. Maximal degree in co-relation 26119. Up to 3087 conditions per place. [2024-06-03 22:05:39,737 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 139 selfloop transitions, 59 changer transitions 0/203 dead transitions. [2024-06-03 22:05:39,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 203 transitions, 2620 flow [2024-06-03 22:05:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:05:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:05:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2024-06-03 22:05:39,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796511627906977 [2024-06-03 22:05:39,739 INFO L175 Difference]: Start difference. First operand has 130 places, 161 transitions, 1812 flow. Second operand 8 states and 165 transitions. [2024-06-03 22:05:39,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 203 transitions, 2620 flow [2024-06-03 22:05:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 203 transitions, 2475 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-06-03 22:05:39,832 INFO L231 Difference]: Finished difference. Result has 133 places, 169 transitions, 1940 flow [2024-06-03 22:05:39,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1667, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1940, PETRI_PLACES=133, PETRI_TRANSITIONS=169} [2024-06-03 22:05:39,833 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 89 predicate places. [2024-06-03 22:05:39,833 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 169 transitions, 1940 flow [2024-06-03 22:05:39,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:39,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:05:39,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:05:39,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-03 22:05:39,833 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)] === [2024-06-03 22:05:39,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:05:39,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1253139879, now seen corresponding path program 3 times [2024-06-03 22:05:39,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:05:39,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480175692] [2024-06-03 22:05:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:05:39,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:05:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:48,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:48,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480175692] [2024-06-03 22:05:48,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480175692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:48,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:48,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820523738] [2024-06-03 22:05:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:48,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:48,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:05:48,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 169 transitions, 1940 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:48,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:48,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:05:48,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:05:50,563 INFO L124 PetriNetUnfolderBase]: 2466/3716 cut-off events. [2024-06-03 22:05:50,563 INFO L125 PetriNetUnfolderBase]: For 128810/128816 co-relation queries the response was YES. [2024-06-03 22:05:50,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26466 conditions, 3716 events. 2466/3716 cut-off events. For 128810/128816 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 17987 event pairs, 666 based on Foata normal form. 10/3724 useless extension candidates. Maximal degree in co-relation 26402. Up to 3488 conditions per place. [2024-06-03 22:05:50,587 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 167 selfloop transitions, 24 changer transitions 0/196 dead transitions. [2024-06-03 22:05:50,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 196 transitions, 2390 flow [2024-06-03 22:05:50,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:05:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:05:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-06-03 22:05:50,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-03 22:05:50,590 INFO L175 Difference]: Start difference. First operand has 133 places, 169 transitions, 1940 flow. Second operand 8 states and 148 transitions. [2024-06-03 22:05:50,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 196 transitions, 2390 flow [2024-06-03 22:05:50,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 196 transitions, 2241 flow, removed 45 selfloop flow, removed 4 redundant places. [2024-06-03 22:05:50,683 INFO L231 Difference]: Finished difference. Result has 137 places, 169 transitions, 1846 flow [2024-06-03 22:05:50,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1791, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1846, PETRI_PLACES=137, PETRI_TRANSITIONS=169} [2024-06-03 22:05:50,683 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 93 predicate places. [2024-06-03 22:05:50,683 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 169 transitions, 1846 flow [2024-06-03 22:05:50,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:50,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:05:50,684 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:05:50,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-03 22:05:50,684 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)] === [2024-06-03 22:05:50,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:05:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1257608653, now seen corresponding path program 4 times [2024-06-03 22:05:50,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:05:50,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199832107] [2024-06-03 22:05:50,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:05:50,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:05:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:05:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:05:59,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:05:59,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199832107] [2024-06-03 22:05:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199832107] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:05:59,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:05:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:05:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882626661] [2024-06-03 22:05:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:05:59,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:05:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:05:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:05:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:05:59,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:05:59,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 169 transitions, 1846 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:05:59,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:05:59,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:05:59,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:06:01,584 INFO L124 PetriNetUnfolderBase]: 2528/3804 cut-off events. [2024-06-03 22:06:01,585 INFO L125 PetriNetUnfolderBase]: For 136493/136499 co-relation queries the response was YES. [2024-06-03 22:06:01,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27296 conditions, 3804 events. 2528/3804 cut-off events. For 136493/136499 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 18554 event pairs, 560 based on Foata normal form. 8/3810 useless extension candidates. Maximal degree in co-relation 27230. Up to 3094 conditions per place. [2024-06-03 22:06:01,614 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 152 selfloop transitions, 62 changer transitions 0/219 dead transitions. [2024-06-03 22:06:01,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 219 transitions, 2826 flow [2024-06-03 22:06:01,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:06:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:06:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2024-06-03 22:06:01,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.502906976744186 [2024-06-03 22:06:01,615 INFO L175 Difference]: Start difference. First operand has 137 places, 169 transitions, 1846 flow. Second operand 8 states and 173 transitions. [2024-06-03 22:06:01,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 219 transitions, 2826 flow [2024-06-03 22:06:01,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 219 transitions, 2763 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-06-03 22:06:01,715 INFO L231 Difference]: Finished difference. Result has 139 places, 177 transitions, 2079 flow [2024-06-03 22:06:01,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1783, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2079, PETRI_PLACES=139, PETRI_TRANSITIONS=177} [2024-06-03 22:06:01,715 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 95 predicate places. [2024-06-03 22:06:01,716 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 177 transitions, 2079 flow [2024-06-03 22:06:01,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:01,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:06:01,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:06:01,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-03 22:06:01,717 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)] === [2024-06-03 22:06:01,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:06:01,717 INFO L85 PathProgramCache]: Analyzing trace with hash 349577453, now seen corresponding path program 5 times [2024-06-03 22:06:01,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:06:01,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858687888] [2024-06-03 22:06:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:06:01,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:06:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:06:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:06:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:06:13,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858687888] [2024-06-03 22:06:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858687888] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:06:13,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:06:13,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:06:13,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147490758] [2024-06-03 22:06:13,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:06:13,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:06:13,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:06:13,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:06:13,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:06:13,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:06:13,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 177 transitions, 2079 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:13,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:06:13,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:06:13,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:06:15,406 INFO L124 PetriNetUnfolderBase]: 2563/3855 cut-off events. [2024-06-03 22:06:15,407 INFO L125 PetriNetUnfolderBase]: For 149186/149192 co-relation queries the response was YES. [2024-06-03 22:06:15,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28659 conditions, 3855 events. 2563/3855 cut-off events. For 149186/149192 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 18829 event pairs, 561 based on Foata normal form. 8/3861 useless extension candidates. Maximal degree in co-relation 28591. Up to 3265 conditions per place. [2024-06-03 22:06:15,437 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 155 selfloop transitions, 57 changer transitions 0/217 dead transitions. [2024-06-03 22:06:15,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 217 transitions, 2855 flow [2024-06-03 22:06:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:06:15,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:06:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2024-06-03 22:06:15,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48255813953488375 [2024-06-03 22:06:15,440 INFO L175 Difference]: Start difference. First operand has 139 places, 177 transitions, 2079 flow. Second operand 8 states and 166 transitions. [2024-06-03 22:06:15,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 217 transitions, 2855 flow [2024-06-03 22:06:15,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 217 transitions, 2704 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-06-03 22:06:15,559 INFO L231 Difference]: Finished difference. Result has 143 places, 181 transitions, 2147 flow [2024-06-03 22:06:15,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1934, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2147, PETRI_PLACES=143, PETRI_TRANSITIONS=181} [2024-06-03 22:06:15,560 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 99 predicate places. [2024-06-03 22:06:15,560 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 181 transitions, 2147 flow [2024-06-03 22:06:15,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:15,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:06:15,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:06:15,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-03 22:06:15,561 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)] === [2024-06-03 22:06:15,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:06:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1257793227, now seen corresponding path program 1 times [2024-06-03 22:06:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:06:15,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567669828] [2024-06-03 22:06:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:06:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:06:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:06:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:06:24,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:06:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567669828] [2024-06-03 22:06:24,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567669828] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:06:24,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:06:24,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:06:24,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21198427] [2024-06-03 22:06:24,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:06:24,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:06:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:06:24,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:06:24,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:06:25,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:06:25,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 181 transitions, 2147 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:25,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:06:25,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:06:25,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:06:26,676 INFO L124 PetriNetUnfolderBase]: 2630/3954 cut-off events. [2024-06-03 22:06:26,676 INFO L125 PetriNetUnfolderBase]: For 163567/163573 co-relation queries the response was YES. [2024-06-03 22:06:26,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29773 conditions, 3954 events. 2630/3954 cut-off events. For 163567/163573 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 19372 event pairs, 580 based on Foata normal form. 14/3966 useless extension candidates. Maximal degree in co-relation 29703. Up to 3346 conditions per place. [2024-06-03 22:06:26,707 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 160 selfloop transitions, 53 changer transitions 0/218 dead transitions. [2024-06-03 22:06:26,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 2911 flow [2024-06-03 22:06:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:06:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:06:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-06-03 22:06:26,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-03 22:06:26,708 INFO L175 Difference]: Start difference. First operand has 143 places, 181 transitions, 2147 flow. Second operand 8 states and 164 transitions. [2024-06-03 22:06:26,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 2911 flow [2024-06-03 22:06:26,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 218 transitions, 2746 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-06-03 22:06:26,822 INFO L231 Difference]: Finished difference. Result has 145 places, 185 transitions, 2183 flow [2024-06-03 22:06:26,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1982, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2183, PETRI_PLACES=145, PETRI_TRANSITIONS=185} [2024-06-03 22:06:26,823 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 101 predicate places. [2024-06-03 22:06:26,823 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 185 transitions, 2183 flow [2024-06-03 22:06:26,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:26,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:06:26,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:06:26,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-03 22:06:26,824 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)] === [2024-06-03 22:06:26,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:06:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1257786283, now seen corresponding path program 6 times [2024-06-03 22:06:26,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:06:26,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642592644] [2024-06-03 22:06:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:06:26,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:06:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:06:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:06:36,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:06:36,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642592644] [2024-06-03 22:06:36,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642592644] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:06:36,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:06:36,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:06:36,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176609674] [2024-06-03 22:06:36,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:06:36,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:06:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:06:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:06:36,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:06:36,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:06:36,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 185 transitions, 2183 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:36,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:06:36,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:06:36,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:06:38,073 INFO L124 PetriNetUnfolderBase]: 2654/3994 cut-off events. [2024-06-03 22:06:38,073 INFO L125 PetriNetUnfolderBase]: For 170794/170800 co-relation queries the response was YES. [2024-06-03 22:06:38,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30650 conditions, 3994 events. 2654/3994 cut-off events. For 170794/170800 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 19666 event pairs, 548 based on Foata normal form. 8/4000 useless extension candidates. Maximal degree in co-relation 30579. Up to 3342 conditions per place. [2024-06-03 22:06:38,107 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 155 selfloop transitions, 64 changer transitions 0/224 dead transitions. [2024-06-03 22:06:38,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 224 transitions, 3039 flow [2024-06-03 22:06:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:06:38,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:06:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2024-06-03 22:06:38,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738372093023256 [2024-06-03 22:06:38,108 INFO L175 Difference]: Start difference. First operand has 145 places, 185 transitions, 2183 flow. Second operand 8 states and 163 transitions. [2024-06-03 22:06:38,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 224 transitions, 3039 flow [2024-06-03 22:06:38,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 224 transitions, 2868 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-06-03 22:06:38,232 INFO L231 Difference]: Finished difference. Result has 147 places, 189 transitions, 2249 flow [2024-06-03 22:06:38,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2249, PETRI_PLACES=147, PETRI_TRANSITIONS=189} [2024-06-03 22:06:38,233 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 103 predicate places. [2024-06-03 22:06:38,233 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 189 transitions, 2249 flow [2024-06-03 22:06:38,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:06:38,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:06:38,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:06:38,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-03 22:06:38,233 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:06:38,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:06:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1243500760, now seen corresponding path program 1 times [2024-06-03 22:06:38,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:06:38,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173018483] [2024-06-03 22:06:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:06:38,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:06:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:06:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:06:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:06:50,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173018483] [2024-06-03 22:06:50,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173018483] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:06:50,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:06:50,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:06:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194335234] [2024-06-03 22:06:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:06:50,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:06:50,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:06:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:06:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:06:50,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:06:50,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 189 transitions, 2249 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:06:50,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:06:50,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:06:50,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:06:51,806 INFO L124 PetriNetUnfolderBase]: 2663/4004 cut-off events. [2024-06-03 22:06:51,806 INFO L125 PetriNetUnfolderBase]: For 177264/177264 co-relation queries the response was YES. [2024-06-03 22:06:51,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30878 conditions, 4004 events. 2663/4004 cut-off events. For 177264/177264 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 19656 event pairs, 683 based on Foata normal form. 1/4003 useless extension candidates. Maximal degree in co-relation 30806. Up to 3859 conditions per place. [2024-06-03 22:06:51,839 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 187 selfloop transitions, 16 changer transitions 0/208 dead transitions. [2024-06-03 22:06:51,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 208 transitions, 2808 flow [2024-06-03 22:06:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:06:51,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:06:51,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-03 22:06:51,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-03 22:06:51,841 INFO L175 Difference]: Start difference. First operand has 147 places, 189 transitions, 2249 flow. Second operand 6 states and 111 transitions. [2024-06-03 22:06:51,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 208 transitions, 2808 flow [2024-06-03 22:06:51,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 208 transitions, 2616 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-06-03 22:06:51,971 INFO L231 Difference]: Finished difference. Result has 147 places, 192 transitions, 2146 flow [2024-06-03 22:06:51,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2059, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2146, PETRI_PLACES=147, PETRI_TRANSITIONS=192} [2024-06-03 22:06:51,971 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 103 predicate places. [2024-06-03 22:06:51,972 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 192 transitions, 2146 flow [2024-06-03 22:06:51,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:06:51,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:06:51,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:06:51,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-03 22:06:51,972 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:06:51,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:06:51,973 INFO L85 PathProgramCache]: Analyzing trace with hash -989368383, now seen corresponding path program 2 times [2024-06-03 22:06:51,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:06:51,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645518871] [2024-06-03 22:06:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:06:51,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:06:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:07:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:07:01,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:07:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645518871] [2024-06-03 22:07:01,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645518871] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:07:01,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:07:01,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:07:01,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107583537] [2024-06-03 22:07:01,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:07:01,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:07:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:07:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:07:01,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:07:01,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:07:01,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 192 transitions, 2146 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:01,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:07:01,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:07:01,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:07:03,273 INFO L124 PetriNetUnfolderBase]: 2692/4049 cut-off events. [2024-06-03 22:07:03,273 INFO L125 PetriNetUnfolderBase]: For 186916/186916 co-relation queries the response was YES. [2024-06-03 22:07:03,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30908 conditions, 4049 events. 2692/4049 cut-off events. For 186916/186916 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 19944 event pairs, 675 based on Foata normal form. 6/4053 useless extension candidates. Maximal degree in co-relation 30835. Up to 3801 conditions per place. [2024-06-03 22:07:03,307 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 183 selfloop transitions, 33 changer transitions 0/221 dead transitions. [2024-06-03 22:07:03,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 221 transitions, 2786 flow [2024-06-03 22:07:03,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:07:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:07:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-03 22:07:03,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.438953488372093 [2024-06-03 22:07:03,308 INFO L175 Difference]: Start difference. First operand has 147 places, 192 transitions, 2146 flow. Second operand 8 states and 151 transitions. [2024-06-03 22:07:03,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 221 transitions, 2786 flow [2024-06-03 22:07:03,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 221 transitions, 2668 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-06-03 22:07:03,438 INFO L231 Difference]: Finished difference. Result has 150 places, 195 transitions, 2187 flow [2024-06-03 22:07:03,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2028, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2187, PETRI_PLACES=150, PETRI_TRANSITIONS=195} [2024-06-03 22:07:03,439 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 106 predicate places. [2024-06-03 22:07:03,439 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 195 transitions, 2187 flow [2024-06-03 22:07:03,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:03,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:07:03,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:07:03,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-03 22:07:03,440 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:07:03,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:07:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash -997649537, now seen corresponding path program 7 times [2024-06-03 22:07:03,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:07:03,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629280464] [2024-06-03 22:07:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:07:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:07:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:07:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:07:15,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:07:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629280464] [2024-06-03 22:07:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629280464] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:07:15,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:07:15,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:07:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002499584] [2024-06-03 22:07:15,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:07:15,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:07:15,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:07:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:07:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:07:15,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:07:15,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 195 transitions, 2187 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:07:15,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:07:15,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:07:15,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:07:17,069 INFO L124 PetriNetUnfolderBase]: 2695/4055 cut-off events. [2024-06-03 22:07:17,070 INFO L125 PetriNetUnfolderBase]: For 195260/195266 co-relation queries the response was YES. [2024-06-03 22:07:17,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31377 conditions, 4055 events. 2695/4055 cut-off events. For 195260/195266 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 19950 event pairs, 672 based on Foata normal form. 12/4065 useless extension candidates. Maximal degree in co-relation 31303. Up to 3805 conditions per place. [2024-06-03 22:07:17,105 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 194 selfloop transitions, 27 changer transitions 0/226 dead transitions. [2024-06-03 22:07:17,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 226 transitions, 2869 flow [2024-06-03 22:07:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:07:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:07:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-03 22:07:17,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 22:07:17,106 INFO L175 Difference]: Start difference. First operand has 150 places, 195 transitions, 2187 flow. Second operand 8 states and 152 transitions. [2024-06-03 22:07:17,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 226 transitions, 2869 flow [2024-06-03 22:07:17,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 226 transitions, 2736 flow, removed 36 selfloop flow, removed 6 redundant places. [2024-06-03 22:07:17,248 INFO L231 Difference]: Finished difference. Result has 152 places, 199 transitions, 2227 flow [2024-06-03 22:07:17,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2054, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2227, PETRI_PLACES=152, PETRI_TRANSITIONS=199} [2024-06-03 22:07:17,248 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 108 predicate places. [2024-06-03 22:07:17,248 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 199 transitions, 2227 flow [2024-06-03 22:07:17,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:07:17,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:07:17,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:07:17,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-03 22:07:17,249 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:07:17,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:07:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash 530068363, now seen corresponding path program 3 times [2024-06-03 22:07:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:07:17,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665588041] [2024-06-03 22:07:17,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:07:17,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:07:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:07:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:07:26,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:07:26,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665588041] [2024-06-03 22:07:26,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665588041] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:07:26,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:07:26,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:07:26,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263262929] [2024-06-03 22:07:26,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:07:26,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:07:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:07:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:07:26,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:07:27,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:07:27,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 199 transitions, 2227 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:27,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:07:27,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:07:27,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:07:28,911 INFO L124 PetriNetUnfolderBase]: 2723/4098 cut-off events. [2024-06-03 22:07:28,911 INFO L125 PetriNetUnfolderBase]: For 206034/206034 co-relation queries the response was YES. [2024-06-03 22:07:28,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31916 conditions, 4098 events. 2723/4098 cut-off events. For 206034/206034 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 20195 event pairs, 679 based on Foata normal form. 6/4102 useless extension candidates. Maximal degree in co-relation 31841. Up to 3831 conditions per place. [2024-06-03 22:07:28,945 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 195 selfloop transitions, 30 changer transitions 0/230 dead transitions. [2024-06-03 22:07:28,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 230 transitions, 2971 flow [2024-06-03 22:07:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:07:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:07:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-03 22:07:28,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 22:07:28,947 INFO L175 Difference]: Start difference. First operand has 152 places, 199 transitions, 2227 flow. Second operand 8 states and 152 transitions. [2024-06-03 22:07:28,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 230 transitions, 2971 flow [2024-06-03 22:07:29,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 230 transitions, 2846 flow, removed 38 selfloop flow, removed 6 redundant places. [2024-06-03 22:07:29,106 INFO L231 Difference]: Finished difference. Result has 154 places, 202 transitions, 2262 flow [2024-06-03 22:07:29,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2262, PETRI_PLACES=154, PETRI_TRANSITIONS=202} [2024-06-03 22:07:29,106 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 110 predicate places. [2024-06-03 22:07:29,107 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 202 transitions, 2262 flow [2024-06-03 22:07:29,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:29,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:07:29,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:07:29,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-03 22:07:29,107 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:07:29,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:07:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash -989368631, now seen corresponding path program 1 times [2024-06-03 22:07:29,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:07:29,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567585628] [2024-06-03 22:07:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:07:29,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:07:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:07:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:07:38,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:07:38,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567585628] [2024-06-03 22:07:38,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567585628] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:07:38,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:07:38,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:07:38,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179018540] [2024-06-03 22:07:38,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:07:38,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:07:38,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:07:38,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:07:38,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:07:38,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:07:38,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 202 transitions, 2262 flow. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:07:38,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:07:38,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:07:38,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:07:40,137 INFO L124 PetriNetUnfolderBase]: 2726/4103 cut-off events. [2024-06-03 22:07:40,137 INFO L125 PetriNetUnfolderBase]: For 213501/213507 co-relation queries the response was YES. [2024-06-03 22:07:40,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32202 conditions, 4103 events. 2726/4103 cut-off events. For 213501/213507 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 20264 event pairs, 669 based on Foata normal form. 9/4110 useless extension candidates. Maximal degree in co-relation 32126. Up to 3841 conditions per place. [2024-06-03 22:07:40,174 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 187 selfloop transitions, 36 changer transitions 0/228 dead transitions. [2024-06-03 22:07:40,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 228 transitions, 2920 flow [2024-06-03 22:07:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:07:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:07:40,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-06-03 22:07:40,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45182724252491696 [2024-06-03 22:07:40,176 INFO L175 Difference]: Start difference. First operand has 154 places, 202 transitions, 2262 flow. Second operand 7 states and 136 transitions. [2024-06-03 22:07:40,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 228 transitions, 2920 flow [2024-06-03 22:07:40,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 228 transitions, 2782 flow, removed 41 selfloop flow, removed 6 redundant places. [2024-06-03 22:07:40,341 INFO L231 Difference]: Finished difference. Result has 155 places, 206 transitions, 2302 flow [2024-06-03 22:07:40,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2302, PETRI_PLACES=155, PETRI_TRANSITIONS=206} [2024-06-03 22:07:40,341 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 111 predicate places. [2024-06-03 22:07:40,342 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 206 transitions, 2302 flow [2024-06-03 22:07:40,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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) [2024-06-03 22:07:40,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:07:40,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:07:40,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-03 22:07:40,342 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)] === [2024-06-03 22:07:40,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:07:40,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1381415421, now seen corresponding path program 4 times [2024-06-03 22:07:40,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:07:40,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085762807] [2024-06-03 22:07:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:07:40,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:07:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:07:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:07:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:07:50,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085762807] [2024-06-03 22:07:50,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085762807] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:07:50,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:07:50,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:07:50,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691609068] [2024-06-03 22:07:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:07:50,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:07:50,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:07:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:07:50,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:07:50,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:07:50,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 206 transitions, 2302 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:50,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:07:50,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:07:50,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:07:52,445 INFO L124 PetriNetUnfolderBase]: 2729/4107 cut-off events. [2024-06-03 22:07:52,445 INFO L125 PetriNetUnfolderBase]: For 221720/221720 co-relation queries the response was YES. [2024-06-03 22:07:52,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32239 conditions, 4107 events. 2729/4107 cut-off events. For 221720/221720 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20303 event pairs, 655 based on Foata normal form. 6/4111 useless extension candidates. Maximal degree in co-relation 32162. Up to 3872 conditions per place. [2024-06-03 22:07:52,481 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 202 selfloop transitions, 28 changer transitions 0/235 dead transitions. [2024-06-03 22:07:52,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 235 transitions, 2992 flow [2024-06-03 22:07:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:07:52,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:07:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-03 22:07:52,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.436046511627907 [2024-06-03 22:07:52,482 INFO L175 Difference]: Start difference. First operand has 155 places, 206 transitions, 2302 flow. Second operand 8 states and 150 transitions. [2024-06-03 22:07:52,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 235 transitions, 2992 flow [2024-06-03 22:07:52,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 235 transitions, 2872 flow, removed 29 selfloop flow, removed 5 redundant places. [2024-06-03 22:07:52,678 INFO L231 Difference]: Finished difference. Result has 158 places, 209 transitions, 2346 flow [2024-06-03 22:07:52,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2182, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2346, PETRI_PLACES=158, PETRI_TRANSITIONS=209} [2024-06-03 22:07:52,679 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 114 predicate places. [2024-06-03 22:07:52,679 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 209 transitions, 2346 flow [2024-06-03 22:07:52,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 22:07:52,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:07:52,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:07:52,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-03 22:07:52,679 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:07:52,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:07:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1952369286, now seen corresponding path program 2 times [2024-06-03 22:07:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:07:52,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363293885] [2024-06-03 22:07:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:07:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:07:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:08:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:08:05,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:08:05,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363293885] [2024-06-03 22:08:05,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363293885] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:08:05,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:08:05,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:08:05,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609638970] [2024-06-03 22:08:05,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:08:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:08:05,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:08:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:08:05,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:08:05,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:08:05,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 209 transitions, 2346 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:05,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:08:05,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:08:05,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:08:06,764 INFO L124 PetriNetUnfolderBase]: 2725/4102 cut-off events. [2024-06-03 22:08:06,765 INFO L125 PetriNetUnfolderBase]: For 229244/229244 co-relation queries the response was YES. [2024-06-03 22:08:06,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32587 conditions, 4102 events. 2725/4102 cut-off events. For 229244/229244 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20270 event pairs, 683 based on Foata normal form. 1/4101 useless extension candidates. Maximal degree in co-relation 32509. Up to 3976 conditions per place. [2024-06-03 22:08:06,803 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 202 selfloop transitions, 11 changer transitions 0/218 dead transitions. [2024-06-03 22:08:06,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 218 transitions, 2794 flow [2024-06-03 22:08:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:08:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:08:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2024-06-03 22:08:06,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953488372093023 [2024-06-03 22:08:06,804 INFO L175 Difference]: Start difference. First operand has 158 places, 209 transitions, 2346 flow. Second operand 6 states and 102 transitions. [2024-06-03 22:08:06,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 218 transitions, 2794 flow [2024-06-03 22:08:07,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 218 transitions, 2644 flow, removed 49 selfloop flow, removed 6 redundant places. [2024-06-03 22:08:07,008 INFO L231 Difference]: Finished difference. Result has 158 places, 209 transitions, 2224 flow [2024-06-03 22:08:07,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2196, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2224, PETRI_PLACES=158, PETRI_TRANSITIONS=209} [2024-06-03 22:08:07,009 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 114 predicate places. [2024-06-03 22:08:07,009 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 209 transitions, 2224 flow [2024-06-03 22:08:07,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:07,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:08:07,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:08:07,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-03 22:08:07,010 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:08:07,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:08:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1249220632, now seen corresponding path program 1 times [2024-06-03 22:08:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:08:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396199894] [2024-06-03 22:08:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:08:07,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:08:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:08:21,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:08:21,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:08:21,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396199894] [2024-06-03 22:08:21,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396199894] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:08:21,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:08:21,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:08:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763530458] [2024-06-03 22:08:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:08:21,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:08:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:08:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:08:21,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:08:22,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:08:22,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 209 transitions, 2224 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:22,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:08:22,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:08:22,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:08:23,726 INFO L124 PetriNetUnfolderBase]: 2725/4102 cut-off events. [2024-06-03 22:08:23,727 INFO L125 PetriNetUnfolderBase]: For 237066/237066 co-relation queries the response was YES. [2024-06-03 22:08:23,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32403 conditions, 4102 events. 2725/4102 cut-off events. For 237066/237066 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20212 event pairs, 681 based on Foata normal form. 3/4103 useless extension candidates. Maximal degree in co-relation 32324. Up to 3927 conditions per place. [2024-06-03 22:08:23,762 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 196 selfloop transitions, 24 changer transitions 0/225 dead transitions. [2024-06-03 22:08:23,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 225 transitions, 2817 flow [2024-06-03 22:08:23,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:08:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:08:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-06-03 22:08:23,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43410852713178294 [2024-06-03 22:08:23,763 INFO L175 Difference]: Start difference. First operand has 158 places, 209 transitions, 2224 flow. Second operand 6 states and 112 transitions. [2024-06-03 22:08:23,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 225 transitions, 2817 flow [2024-06-03 22:08:23,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 225 transitions, 2785 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-06-03 22:08:23,937 INFO L231 Difference]: Finished difference. Result has 159 places, 212 transitions, 2298 flow [2024-06-03 22:08:23,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2192, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2298, PETRI_PLACES=159, PETRI_TRANSITIONS=212} [2024-06-03 22:08:23,938 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 115 predicate places. [2024-06-03 22:08:23,938 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 212 transitions, 2298 flow [2024-06-03 22:08:23,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:23,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:08:23,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:08:23,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-03 22:08:23,939 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:08:23,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:08:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1952363334, now seen corresponding path program 2 times [2024-06-03 22:08:23,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:08:23,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524594625] [2024-06-03 22:08:23,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:08:23,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:08:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:08:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:08:39,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:08:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524594625] [2024-06-03 22:08:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524594625] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:08:39,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:08:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 22:08:39,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675368412] [2024-06-03 22:08:39,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:08:39,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 22:08:39,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:08:39,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 22:08:39,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 22:08:39,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:08:39,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 212 transitions, 2298 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:39,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:08:39,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:08:39,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:08:40,822 INFO L124 PetriNetUnfolderBase]: 2693/4054 cut-off events. [2024-06-03 22:08:40,822 INFO L125 PetriNetUnfolderBase]: For 245348/245354 co-relation queries the response was YES. [2024-06-03 22:08:40,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32372 conditions, 4054 events. 2693/4054 cut-off events. For 245348/245354 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 19956 event pairs, 691 based on Foata normal form. 3/4055 useless extension candidates. Maximal degree in co-relation 32292. Up to 3881 conditions per place. [2024-06-03 22:08:40,857 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 191 selfloop transitions, 25 changer transitions 0/221 dead transitions. [2024-06-03 22:08:40,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 221 transitions, 2752 flow [2024-06-03 22:08:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 22:08:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 22:08:40,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2024-06-03 22:08:40,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42248062015503873 [2024-06-03 22:08:40,858 INFO L175 Difference]: Start difference. First operand has 159 places, 212 transitions, 2298 flow. Second operand 6 states and 109 transitions. [2024-06-03 22:08:40,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 221 transitions, 2752 flow [2024-06-03 22:08:41,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 221 transitions, 2692 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-03 22:08:41,065 INFO L231 Difference]: Finished difference. Result has 161 places, 212 transitions, 2294 flow [2024-06-03 22:08:41,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2238, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2294, PETRI_PLACES=161, PETRI_TRANSITIONS=212} [2024-06-03 22:08:41,066 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 117 predicate places. [2024-06-03 22:08:41,067 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 212 transitions, 2294 flow [2024-06-03 22:08:41,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-06-03 22:08:41,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:08:41,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:08:41,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-03 22:08:41,067 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)] === [2024-06-03 22:08:41,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:08:41,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1987210868, now seen corresponding path program 1 times [2024-06-03 22:08:41,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:08:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818341334] [2024-06-03 22:08:41,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:08:41,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:08:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:08:58,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:08:58,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:08:58,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818341334] [2024-06-03 22:08:58,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818341334] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:08:58,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:08:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:08:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727140713] [2024-06-03 22:08:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:08:58,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:08:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:08:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:08:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:08:58,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-03 22:08:58,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 212 transitions, 2294 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-06-03 22:08:58,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:08:58,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-03 22:08:58,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:08:59,847 INFO L124 PetriNetUnfolderBase]: 2859/4216 cut-off events. [2024-06-03 22:08:59,847 INFO L125 PetriNetUnfolderBase]: For 255894/255894 co-relation queries the response was YES. [2024-06-03 22:08:59,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33486 conditions, 4216 events. 2859/4216 cut-off events. For 255894/255894 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 19921 event pairs, 731 based on Foata normal form. 3/4217 useless extension candidates. Maximal degree in co-relation 33405. Up to 4188 conditions per place. [2024-06-03 22:08:59,882 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 210 selfloop transitions, 14 changer transitions 0/227 dead transitions. [2024-06-03 22:08:59,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 227 transitions, 2802 flow [2024-06-03 22:08:59,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:08:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:08:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 111 transitions. [2024-06-03 22:08:59,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687707641196013 [2024-06-03 22:08:59,883 INFO L175 Difference]: Start difference. First operand has 161 places, 212 transitions, 2294 flow. Second operand 7 states and 111 transitions. [2024-06-03 22:08:59,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 227 transitions, 2802 flow [2024-06-03 22:09:00,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 227 transitions, 2730 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-06-03 22:09:00,079 INFO L231 Difference]: Finished difference. Result has 162 places, 215 transitions, 2294 flow [2024-06-03 22:09:00,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2222, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2294, PETRI_PLACES=162, PETRI_TRANSITIONS=215} [2024-06-03 22:09:00,080 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 118 predicate places. [2024-06-03 22:09:00,080 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 215 transitions, 2294 flow [2024-06-03 22:09:00,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 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) [2024-06-03 22:09:00,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:09:00,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:09:00,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-03 22:09:00,081 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)] === [2024-06-03 22:09:00,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:09:00,081 INFO L85 PathProgramCache]: Analyzing trace with hash 963535217, now seen corresponding path program 1 times [2024-06-03 22:09:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:09:00,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858167181] [2024-06-03 22:09:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:09:00,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:09:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:09:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:09:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:09:11,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858167181] [2024-06-03 22:09:11,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858167181] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:09:11,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:09:11,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:09:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137456702] [2024-06-03 22:09:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:09:11,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:09:11,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:09:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:09:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:09:11,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:09:11,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 215 transitions, 2294 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:11,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:09:11,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:09:11,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:09:13,283 INFO L124 PetriNetUnfolderBase]: 2954/4460 cut-off events. [2024-06-03 22:09:13,283 INFO L125 PetriNetUnfolderBase]: For 304478/304484 co-relation queries the response was YES. [2024-06-03 22:09:13,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36849 conditions, 4460 events. 2954/4460 cut-off events. For 304478/304484 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 22676 event pairs, 432 based on Foata normal form. 26/4475 useless extension candidates. Maximal degree in co-relation 36768. Up to 2644 conditions per place. [2024-06-03 22:09:13,322 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 176 selfloop transitions, 98 changer transitions 0/279 dead transitions. [2024-06-03 22:09:13,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 279 transitions, 3802 flow [2024-06-03 22:09:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:09:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:09:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 195 transitions. [2024-06-03 22:09:13,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-06-03 22:09:13,324 INFO L175 Difference]: Start difference. First operand has 162 places, 215 transitions, 2294 flow. Second operand 9 states and 195 transitions. [2024-06-03 22:09:13,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 279 transitions, 3802 flow [2024-06-03 22:09:13,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 279 transitions, 3752 flow, removed 13 selfloop flow, removed 5 redundant places. [2024-06-03 22:09:13,577 INFO L231 Difference]: Finished difference. Result has 168 places, 221 transitions, 2656 flow [2024-06-03 22:09:13,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2656, PETRI_PLACES=168, PETRI_TRANSITIONS=221} [2024-06-03 22:09:13,578 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 124 predicate places. [2024-06-03 22:09:13,578 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 221 transitions, 2656 flow [2024-06-03 22:09:13,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:13,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:09:13,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:09:13,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-03 22:09:13,579 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)] === [2024-06-03 22:09:13,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:09:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash 965412887, now seen corresponding path program 2 times [2024-06-03 22:09:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:09:13,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411194179] [2024-06-03 22:09:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:09:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:09:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:09:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:09:23,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:09:23,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411194179] [2024-06-03 22:09:23,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411194179] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:09:23,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:09:23,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:09:23,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34246402] [2024-06-03 22:09:23,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:09:23,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:09:23,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:09:23,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:09:23,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:09:23,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:09:23,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 221 transitions, 2656 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:23,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:09:23,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:09:23,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:09:25,826 INFO L124 PetriNetUnfolderBase]: 3063/4655 cut-off events. [2024-06-03 22:09:25,826 INFO L125 PetriNetUnfolderBase]: For 338116/338122 co-relation queries the response was YES. [2024-06-03 22:09:25,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39701 conditions, 4655 events. 3063/4655 cut-off events. For 338116/338122 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 24070 event pairs, 698 based on Foata normal form. 32/4685 useless extension candidates. Maximal degree in co-relation 39617. Up to 3507 conditions per place. [2024-06-03 22:09:25,866 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 169 selfloop transitions, 97 changer transitions 0/271 dead transitions. [2024-06-03 22:09:25,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 271 transitions, 3809 flow [2024-06-03 22:09:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:09:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:09:25,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 189 transitions. [2024-06-03 22:09:25,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2024-06-03 22:09:25,869 INFO L175 Difference]: Start difference. First operand has 168 places, 221 transitions, 2656 flow. Second operand 9 states and 189 transitions. [2024-06-03 22:09:25,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 271 transitions, 3809 flow [2024-06-03 22:09:26,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 271 transitions, 3612 flow, removed 44 selfloop flow, removed 4 redundant places. [2024-06-03 22:09:26,184 INFO L231 Difference]: Finished difference. Result has 173 places, 223 transitions, 2748 flow [2024-06-03 22:09:26,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2748, PETRI_PLACES=173, PETRI_TRANSITIONS=223} [2024-06-03 22:09:26,185 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 129 predicate places. [2024-06-03 22:09:26,185 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 223 transitions, 2748 flow [2024-06-03 22:09:26,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:26,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:09:26,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:09:26,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-03 22:09:26,186 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)] === [2024-06-03 22:09:26,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:09:26,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1413898407, now seen corresponding path program 3 times [2024-06-03 22:09:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:09:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689174311] [2024-06-03 22:09:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:09:26,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:09:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:09:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:09:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:09:37,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689174311] [2024-06-03 22:09:37,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689174311] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:09:37,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:09:37,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:09:37,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208789666] [2024-06-03 22:09:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:09:37,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:09:37,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:09:37,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:09:37,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:09:37,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:09:37,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 223 transitions, 2748 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:37,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:09:37,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:09:37,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:09:39,892 INFO L124 PetriNetUnfolderBase]: 3233/4923 cut-off events. [2024-06-03 22:09:39,892 INFO L125 PetriNetUnfolderBase]: For 359884/359890 co-relation queries the response was YES. [2024-06-03 22:09:39,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42607 conditions, 4923 events. 3233/4923 cut-off events. For 359884/359890 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 25967 event pairs, 702 based on Foata normal form. 26/4944 useless extension candidates. Maximal degree in co-relation 42521. Up to 3505 conditions per place. [2024-06-03 22:09:39,937 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 176 selfloop transitions, 98 changer transitions 0/279 dead transitions. [2024-06-03 22:09:39,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 279 transitions, 4086 flow [2024-06-03 22:09:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:09:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:09:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 192 transitions. [2024-06-03 22:09:39,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2024-06-03 22:09:39,939 INFO L175 Difference]: Start difference. First operand has 173 places, 223 transitions, 2748 flow. Second operand 9 states and 192 transitions. [2024-06-03 22:09:39,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 279 transitions, 4086 flow [2024-06-03 22:09:40,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 279 transitions, 3834 flow, removed 31 selfloop flow, removed 7 redundant places. [2024-06-03 22:09:40,313 INFO L231 Difference]: Finished difference. Result has 176 places, 227 transitions, 2856 flow [2024-06-03 22:09:40,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2496, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2856, PETRI_PLACES=176, PETRI_TRANSITIONS=227} [2024-06-03 22:09:40,313 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 132 predicate places. [2024-06-03 22:09:40,313 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 227 transitions, 2856 flow [2024-06-03 22:09:40,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:40,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:09:40,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:09:40,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-03 22:09:40,314 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)] === [2024-06-03 22:09:40,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:09:40,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1052248847, now seen corresponding path program 4 times [2024-06-03 22:09:40,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:09:40,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019771244] [2024-06-03 22:09:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:09:40,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:09:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:09:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:09:50,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:09:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019771244] [2024-06-03 22:09:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019771244] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:09:50,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:09:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:09:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989401872] [2024-06-03 22:09:50,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:09:50,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:09:50,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:09:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:09:50,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:09:51,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:09:51,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 227 transitions, 2856 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:51,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:09:51,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:09:51,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:09:53,126 INFO L124 PetriNetUnfolderBase]: 3361/5133 cut-off events. [2024-06-03 22:09:53,127 INFO L125 PetriNetUnfolderBase]: For 390854/390860 co-relation queries the response was YES. [2024-06-03 22:09:53,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44293 conditions, 5133 events. 3361/5133 cut-off events. For 390854/390860 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 27479 event pairs, 810 based on Foata normal form. 32/5163 useless extension candidates. Maximal degree in co-relation 44205. Up to 4314 conditions per place. [2024-06-03 22:09:53,174 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 195 selfloop transitions, 71 changer transitions 0/271 dead transitions. [2024-06-03 22:09:53,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 271 transitions, 3799 flow [2024-06-03 22:09:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:09:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:09:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-06-03 22:09:53,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754521963824289 [2024-06-03 22:09:53,176 INFO L175 Difference]: Start difference. First operand has 176 places, 227 transitions, 2856 flow. Second operand 9 states and 184 transitions. [2024-06-03 22:09:53,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 271 transitions, 3799 flow [2024-06-03 22:09:53,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 271 transitions, 3598 flow, removed 44 selfloop flow, removed 5 redundant places. [2024-06-03 22:09:53,588 INFO L231 Difference]: Finished difference. Result has 180 places, 229 transitions, 2900 flow [2024-06-03 22:09:53,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2655, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2900, PETRI_PLACES=180, PETRI_TRANSITIONS=229} [2024-06-03 22:09:53,589 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 136 predicate places. [2024-06-03 22:09:53,589 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 229 transitions, 2900 flow [2024-06-03 22:09:53,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:09:53,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:09:53,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:09:53,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-03 22:09:53,590 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)] === [2024-06-03 22:09:53,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:09:53,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2108295243, now seen corresponding path program 5 times [2024-06-03 22:09:53,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:09:53,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504277749] [2024-06-03 22:09:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:09:53,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:09:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:10:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:10:04,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:10:04,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504277749] [2024-06-03 22:10:04,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504277749] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:10:04,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:10:04,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:10:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71104457] [2024-06-03 22:10:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:10:04,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:10:04,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:10:04,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:10:04,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:10:04,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:10:04,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 229 transitions, 2900 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:04,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:10:04,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:10:04,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:10:07,096 INFO L124 PetriNetUnfolderBase]: 3485/5337 cut-off events. [2024-06-03 22:10:07,096 INFO L125 PetriNetUnfolderBase]: For 409780/409786 co-relation queries the response was YES. [2024-06-03 22:10:07,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46069 conditions, 5337 events. 3485/5337 cut-off events. For 409780/409786 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 28883 event pairs, 837 based on Foata normal form. 32/5367 useless extension candidates. Maximal degree in co-relation 45979. Up to 4509 conditions per place. [2024-06-03 22:10:07,145 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 203 selfloop transitions, 65 changer transitions 0/273 dead transitions. [2024-06-03 22:10:07,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 273 transitions, 3925 flow [2024-06-03 22:10:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:10:07,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:10:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-06-03 22:10:07,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754521963824289 [2024-06-03 22:10:07,146 INFO L175 Difference]: Start difference. First operand has 180 places, 229 transitions, 2900 flow. Second operand 9 states and 184 transitions. [2024-06-03 22:10:07,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 273 transitions, 3925 flow [2024-06-03 22:10:07,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 273 transitions, 3762 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-06-03 22:10:07,555 INFO L231 Difference]: Finished difference. Result has 183 places, 231 transitions, 2974 flow [2024-06-03 22:10:07,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2737, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2974, PETRI_PLACES=183, PETRI_TRANSITIONS=231} [2024-06-03 22:10:07,556 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 139 predicate places. [2024-06-03 22:10:07,556 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 231 transitions, 2974 flow [2024-06-03 22:10:07,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:07,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:10:07,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:10:07,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-03 22:10:07,556 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)] === [2024-06-03 22:10:07,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:10:07,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2108291523, now seen corresponding path program 6 times [2024-06-03 22:10:07,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:10:07,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966336265] [2024-06-03 22:10:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:10:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:10:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:10:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:10:19,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:10:19,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966336265] [2024-06-03 22:10:19,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966336265] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:10:19,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:10:19,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:10:19,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914391095] [2024-06-03 22:10:19,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:10:19,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:10:19,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:10:19,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:10:19,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:10:20,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:10:20,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 231 transitions, 2974 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:20,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:10:20,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:10:20,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:10:22,315 INFO L124 PetriNetUnfolderBase]: 3785/5809 cut-off events. [2024-06-03 22:10:22,315 INFO L125 PetriNetUnfolderBase]: For 458204/458210 co-relation queries the response was YES. [2024-06-03 22:10:22,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51157 conditions, 5809 events. 3785/5809 cut-off events. For 458204/458210 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 32074 event pairs, 951 based on Foata normal form. 26/5827 useless extension candidates. Maximal degree in co-relation 51066. Up to 4277 conditions per place. [2024-06-03 22:10:22,374 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 210 selfloop transitions, 71 changer transitions 0/286 dead transitions. [2024-06-03 22:10:22,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 286 transitions, 4406 flow [2024-06-03 22:10:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:10:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:10:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2024-06-03 22:10:22,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909560723514212 [2024-06-03 22:10:22,376 INFO L175 Difference]: Start difference. First operand has 183 places, 231 transitions, 2974 flow. Second operand 9 states and 190 transitions. [2024-06-03 22:10:22,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 286 transitions, 4406 flow [2024-06-03 22:10:23,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 286 transitions, 4206 flow, removed 37 selfloop flow, removed 7 redundant places. [2024-06-03 22:10:23,016 INFO L231 Difference]: Finished difference. Result has 186 places, 237 transitions, 3157 flow [2024-06-03 22:10:23,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2774, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3157, PETRI_PLACES=186, PETRI_TRANSITIONS=237} [2024-06-03 22:10:23,017 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 142 predicate places. [2024-06-03 22:10:23,017 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 237 transitions, 3157 flow [2024-06-03 22:10:23,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:23,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:10:23,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:10:23,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-03 22:10:23,017 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:10:23,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:10:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash -106479124, now seen corresponding path program 1 times [2024-06-03 22:10:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:10:23,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561030487] [2024-06-03 22:10:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:10:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:10:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:10:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:10:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:10:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561030487] [2024-06-03 22:10:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561030487] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:10:34,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:10:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:10:34,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477709219] [2024-06-03 22:10:34,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:10:34,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:10:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:10:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:10:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:10:35,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:10:35,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 237 transitions, 3157 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) [2024-06-03 22:10:35,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:10:35,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:10:35,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:10:37,231 INFO L124 PetriNetUnfolderBase]: 3794/5826 cut-off events. [2024-06-03 22:10:37,231 INFO L125 PetriNetUnfolderBase]: For 446955/446961 co-relation queries the response was YES. [2024-06-03 22:10:37,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51572 conditions, 5826 events. 3794/5826 cut-off events. For 446955/446961 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 32263 event pairs, 1003 based on Foata normal form. 6/5830 useless extension candidates. Maximal degree in co-relation 51479. Up to 5263 conditions per place. [2024-06-03 22:10:37,289 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 201 selfloop transitions, 63 changer transitions 0/269 dead transitions. [2024-06-03 22:10:37,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 269 transitions, 4041 flow [2024-06-03 22:10:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:10:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:10:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2024-06-03 22:10:37,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47840531561461797 [2024-06-03 22:10:37,290 INFO L175 Difference]: Start difference. First operand has 186 places, 237 transitions, 3157 flow. Second operand 7 states and 144 transitions. [2024-06-03 22:10:37,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 269 transitions, 4041 flow [2024-06-03 22:10:37,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 269 transitions, 3850 flow, removed 54 selfloop flow, removed 5 redundant places. [2024-06-03 22:10:37,774 INFO L231 Difference]: Finished difference. Result has 188 places, 242 transitions, 3201 flow [2024-06-03 22:10:37,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2971, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3201, PETRI_PLACES=188, PETRI_TRANSITIONS=242} [2024-06-03 22:10:37,775 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 144 predicate places. [2024-06-03 22:10:37,775 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 242 transitions, 3201 flow [2024-06-03 22:10:37,775 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) [2024-06-03 22:10:37,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:10:37,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:10:37,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-03 22:10:37,776 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)] === [2024-06-03 22:10:37,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:10:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2048147623, now seen corresponding path program 7 times [2024-06-03 22:10:37,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:10:37,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158732828] [2024-06-03 22:10:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:10:37,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:10:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:10:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:10:48,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:10:48,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158732828] [2024-06-03 22:10:48,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158732828] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:10:48,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:10:48,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:10:48,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39320853] [2024-06-03 22:10:48,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:10:48,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:10:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:10:48,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:10:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:10:48,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:10:48,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 242 transitions, 3201 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:48,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:10:48,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:10:48,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:10:51,362 INFO L124 PetriNetUnfolderBase]: 3891/5987 cut-off events. [2024-06-03 22:10:51,362 INFO L125 PetriNetUnfolderBase]: For 483170/483176 co-relation queries the response was YES. [2024-06-03 22:10:51,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52762 conditions, 5987 events. 3891/5987 cut-off events. For 483170/483176 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 33482 event pairs, 828 based on Foata normal form. 26/6011 useless extension candidates. Maximal degree in co-relation 52667. Up to 4559 conditions per place. [2024-06-03 22:10:51,420 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 197 selfloop transitions, 102 changer transitions 0/304 dead transitions. [2024-06-03 22:10:51,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 304 transitions, 4832 flow [2024-06-03 22:10:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:10:51,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:10:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 198 transitions. [2024-06-03 22:10:51,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2024-06-03 22:10:51,422 INFO L175 Difference]: Start difference. First operand has 188 places, 242 transitions, 3201 flow. Second operand 9 states and 198 transitions. [2024-06-03 22:10:51,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 304 transitions, 4832 flow [2024-06-03 22:10:51,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 304 transitions, 4719 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-06-03 22:10:51,976 INFO L231 Difference]: Finished difference. Result has 195 places, 248 transitions, 3556 flow [2024-06-03 22:10:51,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3088, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3556, PETRI_PLACES=195, PETRI_TRANSITIONS=248} [2024-06-03 22:10:51,976 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 151 predicate places. [2024-06-03 22:10:51,976 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 248 transitions, 3556 flow [2024-06-03 22:10:51,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:10:51,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:10:51,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:10:51,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-03 22:10:51,977 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)] === [2024-06-03 22:10:51,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:10:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2048143903, now seen corresponding path program 8 times [2024-06-03 22:10:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:10:51,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181962736] [2024-06-03 22:10:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:10:51,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:10:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:11:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:11:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:11:02,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181962736] [2024-06-03 22:11:02,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181962736] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:11:02,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:11:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:11:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254664443] [2024-06-03 22:11:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:11:02,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:11:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:11:02,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:11:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:11:03,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:11:03,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 248 transitions, 3556 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:11:03,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:11:03,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:11:03,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:11:05,781 INFO L124 PetriNetUnfolderBase]: 4014/6190 cut-off events. [2024-06-03 22:11:05,781 INFO L125 PetriNetUnfolderBase]: For 528763/528769 co-relation queries the response was YES. [2024-06-03 22:11:05,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55938 conditions, 6190 events. 4014/6190 cut-off events. For 528763/528769 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 34936 event pairs, 1027 based on Foata normal form. 32/6220 useless extension candidates. Maximal degree in co-relation 55840. Up to 5174 conditions per place. [2024-06-03 22:11:05,837 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 195 selfloop transitions, 100 changer transitions 0/300 dead transitions. [2024-06-03 22:11:05,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 300 transitions, 4844 flow [2024-06-03 22:11:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:11:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:11:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 193 transitions. [2024-06-03 22:11:05,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49870801033591733 [2024-06-03 22:11:05,839 INFO L175 Difference]: Start difference. First operand has 195 places, 248 transitions, 3556 flow. Second operand 9 states and 193 transitions. [2024-06-03 22:11:05,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 300 transitions, 4844 flow [2024-06-03 22:11:06,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 300 transitions, 4442 flow, removed 62 selfloop flow, removed 7 redundant places. [2024-06-03 22:11:06,429 INFO L231 Difference]: Finished difference. Result has 197 places, 250 transitions, 3474 flow [2024-06-03 22:11:06,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3159, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3474, PETRI_PLACES=197, PETRI_TRANSITIONS=250} [2024-06-03 22:11:06,429 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 153 predicate places. [2024-06-03 22:11:06,429 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 250 transitions, 3474 flow [2024-06-03 22:11:06,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:11:06,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:11:06,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:11:06,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-03 22:11:06,430 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)] === [2024-06-03 22:11:06,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:11:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1960058283, now seen corresponding path program 1 times [2024-06-03 22:11:06,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:11:06,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117579326] [2024-06-03 22:11:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:11:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:11:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:11:16,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:11:16,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:11:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117579326] [2024-06-03 22:11:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117579326] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:11:16,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:11:16,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:11:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113943326] [2024-06-03 22:11:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:11:16,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:11:16,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:11:16,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:11:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:11:16,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:11:16,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 250 transitions, 3474 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:11:16,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:11:16,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:11:16,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:11:19,223 INFO L124 PetriNetUnfolderBase]: 4042/6234 cut-off events. [2024-06-03 22:11:19,223 INFO L125 PetriNetUnfolderBase]: For 519936/519942 co-relation queries the response was YES. [2024-06-03 22:11:19,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54575 conditions, 6234 events. 4042/6234 cut-off events. For 519936/519942 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 35302 event pairs, 1030 based on Foata normal form. 8/6240 useless extension candidates. Maximal degree in co-relation 54479. Up to 5645 conditions per place. [2024-06-03 22:11:19,283 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 218 selfloop transitions, 61 changer transitions 0/284 dead transitions. [2024-06-03 22:11:19,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 284 transitions, 4322 flow [2024-06-03 22:11:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:11:19,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:11:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-06-03 22:11:19,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4622093023255814 [2024-06-03 22:11:19,284 INFO L175 Difference]: Start difference. First operand has 197 places, 250 transitions, 3474 flow. Second operand 8 states and 159 transitions. [2024-06-03 22:11:19,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 284 transitions, 4322 flow [2024-06-03 22:11:19,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 284 transitions, 4046 flow, removed 40 selfloop flow, removed 7 redundant places. [2024-06-03 22:11:19,925 INFO L231 Difference]: Finished difference. Result has 198 places, 253 transitions, 3442 flow [2024-06-03 22:11:19,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3442, PETRI_PLACES=198, PETRI_TRANSITIONS=253} [2024-06-03 22:11:19,925 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 154 predicate places. [2024-06-03 22:11:19,925 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 253 transitions, 3442 flow [2024-06-03 22:11:19,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:11:19,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:11:19,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:11:19,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-03 22:11:19,926 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:11:19,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:11:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash 336885403, now seen corresponding path program 2 times [2024-06-03 22:11:19,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:11:19,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791383093] [2024-06-03 22:11:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:11:19,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:11:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:11:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:11:29,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:11:29,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791383093] [2024-06-03 22:11:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791383093] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:11:29,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:11:29,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:11:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850999334] [2024-06-03 22:11:29,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:11:29,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:11:29,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:11:29,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:11:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:11:29,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:11:29,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 253 transitions, 3442 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:11:29,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:11:29,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:11:29,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:11:31,868 INFO L124 PetriNetUnfolderBase]: 4096/6324 cut-off events. [2024-06-03 22:11:31,868 INFO L125 PetriNetUnfolderBase]: For 540292/540298 co-relation queries the response was YES. [2024-06-03 22:11:31,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55126 conditions, 6324 events. 4096/6324 cut-off events. For 540292/540298 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 35990 event pairs, 995 based on Foata normal form. 8/6330 useless extension candidates. Maximal degree in co-relation 55029. Up to 5573 conditions per place. [2024-06-03 22:11:31,927 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 215 selfloop transitions, 72 changer transitions 0/292 dead transitions. [2024-06-03 22:11:31,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 292 transitions, 4618 flow [2024-06-03 22:11:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:11:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:11:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-03 22:11:31,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-03 22:11:31,928 INFO L175 Difference]: Start difference. First operand has 198 places, 253 transitions, 3442 flow. Second operand 8 states and 161 transitions. [2024-06-03 22:11:31,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 292 transitions, 4618 flow [2024-06-03 22:11:32,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 292 transitions, 4398 flow, removed 51 selfloop flow, removed 6 redundant places. [2024-06-03 22:11:32,510 INFO L231 Difference]: Finished difference. Result has 200 places, 259 transitions, 3609 flow [2024-06-03 22:11:32,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3222, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3609, PETRI_PLACES=200, PETRI_TRANSITIONS=259} [2024-06-03 22:11:32,511 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 156 predicate places. [2024-06-03 22:11:32,511 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 259 transitions, 3609 flow [2024-06-03 22:11:32,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:11:32,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:11:32,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:11:32,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-03 22:11:32,511 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:11:32,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:11:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash 336670201, now seen corresponding path program 9 times [2024-06-03 22:11:32,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:11:32,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429004183] [2024-06-03 22:11:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:11:32,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:11:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:11:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:11:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:11:44,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429004183] [2024-06-03 22:11:44,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429004183] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:11:44,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:11:44,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:11:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338132600] [2024-06-03 22:11:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:11:44,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:11:44,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:11:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:11:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:11:44,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:11:44,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 259 transitions, 3609 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:11:44,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:11:44,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:11:44,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:11:47,108 INFO L124 PetriNetUnfolderBase]: 4220/6528 cut-off events. [2024-06-03 22:11:47,109 INFO L125 PetriNetUnfolderBase]: For 605587/605591 co-relation queries the response was YES. [2024-06-03 22:11:47,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57379 conditions, 6528 events. 4220/6528 cut-off events. For 605587/605591 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 37506 event pairs, 1029 based on Foata normal form. 31/6557 useless extension candidates. Maximal degree in co-relation 57281. Up to 5753 conditions per place. [2024-06-03 22:11:47,171 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 232 selfloop transitions, 64 changer transitions 0/301 dead transitions. [2024-06-03 22:11:47,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 301 transitions, 4536 flow [2024-06-03 22:11:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:11:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:11:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2024-06-03 22:11:47,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 22:11:47,173 INFO L175 Difference]: Start difference. First operand has 200 places, 259 transitions, 3609 flow. Second operand 9 states and 180 transitions. [2024-06-03 22:11:47,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 301 transitions, 4536 flow [2024-06-03 22:11:47,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 301 transitions, 4334 flow, removed 64 selfloop flow, removed 4 redundant places. [2024-06-03 22:11:47,710 INFO L231 Difference]: Finished difference. Result has 205 places, 261 transitions, 3658 flow [2024-06-03 22:11:47,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3407, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3658, PETRI_PLACES=205, PETRI_TRANSITIONS=261} [2024-06-03 22:11:47,710 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 161 predicate places. [2024-06-03 22:11:47,710 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 261 transitions, 3658 flow [2024-06-03 22:11:47,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:11:47,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:11:47,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:11:47,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-03 22:11:47,711 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:11:47,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:11:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash 331313773, now seen corresponding path program 3 times [2024-06-03 22:11:47,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:11:47,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298076072] [2024-06-03 22:11:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:11:47,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:11:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:11:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:11:57,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:11:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298076072] [2024-06-03 22:11:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298076072] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:11:57,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:11:57,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:11:57,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441211229] [2024-06-03 22:11:57,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:11:57,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:11:57,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:11:57,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:11:57,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:11:58,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:11:58,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 261 transitions, 3658 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:11:58,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:11:58,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:11:58,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:12:00,718 INFO L124 PetriNetUnfolderBase]: 4222/6526 cut-off events. [2024-06-03 22:12:00,718 INFO L125 PetriNetUnfolderBase]: For 586112/586116 co-relation queries the response was YES. [2024-06-03 22:12:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57616 conditions, 6526 events. 4222/6526 cut-off events. For 586112/586116 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 37419 event pairs, 1055 based on Foata normal form. 7/6531 useless extension candidates. Maximal degree in co-relation 57516. Up to 5937 conditions per place. [2024-06-03 22:12:00,787 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 226 selfloop transitions, 65 changer transitions 0/296 dead transitions. [2024-06-03 22:12:00,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 296 transitions, 4544 flow [2024-06-03 22:12:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:12:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:12:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-06-03 22:12:00,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-03 22:12:00,788 INFO L175 Difference]: Start difference. First operand has 205 places, 261 transitions, 3658 flow. Second operand 8 states and 164 transitions. [2024-06-03 22:12:00,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 296 transitions, 4544 flow [2024-06-03 22:12:01,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 296 transitions, 4262 flow, removed 79 selfloop flow, removed 7 redundant places. [2024-06-03 22:12:01,537 INFO L231 Difference]: Finished difference. Result has 206 places, 261 transitions, 3514 flow [2024-06-03 22:12:01,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3514, PETRI_PLACES=206, PETRI_TRANSITIONS=261} [2024-06-03 22:12:01,538 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 162 predicate places. [2024-06-03 22:12:01,538 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 261 transitions, 3514 flow [2024-06-03 22:12:01,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:12:01,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:12:01,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:12:01,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-03 22:12:01,539 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:12:01,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:12:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash 331307821, now seen corresponding path program 10 times [2024-06-03 22:12:01,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:12:01,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654328169] [2024-06-03 22:12:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:12:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:12:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:12:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:12:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:12:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654328169] [2024-06-03 22:12:13,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654328169] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:12:13,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:12:13,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:12:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429659750] [2024-06-03 22:12:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:12:13,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:12:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:12:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:12:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:12:13,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:12:13,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 261 transitions, 3514 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:12:13,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:12:13,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:12:13,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:12:16,011 INFO L124 PetriNetUnfolderBase]: 4346/6730 cut-off events. [2024-06-03 22:12:16,011 INFO L125 PetriNetUnfolderBase]: For 634045/634049 co-relation queries the response was YES. [2024-06-03 22:12:16,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58719 conditions, 6730 events. 4346/6730 cut-off events. For 634045/634049 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 38965 event pairs, 1071 based on Foata normal form. 31/6759 useless extension candidates. Maximal degree in co-relation 58618. Up to 5955 conditions per place. [2024-06-03 22:12:16,082 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 234 selfloop transitions, 68 changer transitions 0/307 dead transitions. [2024-06-03 22:12:16,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 307 transitions, 4579 flow [2024-06-03 22:12:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:12:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:12:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2024-06-03 22:12:16,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4780361757105943 [2024-06-03 22:12:16,084 INFO L175 Difference]: Start difference. First operand has 206 places, 261 transitions, 3514 flow. Second operand 9 states and 185 transitions. [2024-06-03 22:12:16,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 307 transitions, 4579 flow [2024-06-03 22:12:16,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 307 transitions, 4448 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-06-03 22:12:16,821 INFO L231 Difference]: Finished difference. Result has 209 places, 263 transitions, 3646 flow [2024-06-03 22:12:16,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3383, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3646, PETRI_PLACES=209, PETRI_TRANSITIONS=263} [2024-06-03 22:12:16,821 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 165 predicate places. [2024-06-03 22:12:16,822 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 263 transitions, 3646 flow [2024-06-03 22:12:16,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:12:16,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:12:16,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:12:16,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-03 22:12:16,822 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)] === [2024-06-03 22:12:16,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:12:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash -106180222, now seen corresponding path program 1 times [2024-06-03 22:12:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:12:16,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254513495] [2024-06-03 22:12:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:12:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:12:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:12:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:12:29,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:12:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254513495] [2024-06-03 22:12:29,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254513495] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:12:29,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:12:29,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:12:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712581697] [2024-06-03 22:12:29,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:12:29,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:12:29,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:12:29,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:12:29,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:12:29,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-03 22:12:29,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 263 transitions, 3646 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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) [2024-06-03 22:12:29,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:12:29,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-03 22:12:29,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:12:31,606 INFO L124 PetriNetUnfolderBase]: 4513/6898 cut-off events. [2024-06-03 22:12:31,607 INFO L125 PetriNetUnfolderBase]: For 619862/619862 co-relation queries the response was YES. [2024-06-03 22:12:31,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60387 conditions, 6898 events. 4513/6898 cut-off events. For 619862/619862 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 39155 event pairs, 1277 based on Foata normal form. 1/6897 useless extension candidates. Maximal degree in co-relation 60285. Up to 6849 conditions per place. [2024-06-03 22:12:31,683 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 260 selfloop transitions, 23 changer transitions 0/286 dead transitions. [2024-06-03 22:12:31,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 286 transitions, 4468 flow [2024-06-03 22:12:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:12:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:12:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2024-06-03 22:12:31,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39867109634551495 [2024-06-03 22:12:31,684 INFO L175 Difference]: Start difference. First operand has 209 places, 263 transitions, 3646 flow. Second operand 7 states and 120 transitions. [2024-06-03 22:12:31,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 286 transitions, 4468 flow [2024-06-03 22:12:32,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 286 transitions, 4244 flow, removed 46 selfloop flow, removed 7 redundant places. [2024-06-03 22:12:32,570 INFO L231 Difference]: Finished difference. Result has 209 places, 269 transitions, 3584 flow [2024-06-03 22:12:32,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3584, PETRI_PLACES=209, PETRI_TRANSITIONS=269} [2024-06-03 22:12:32,570 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 165 predicate places. [2024-06-03 22:12:32,570 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 269 transitions, 3584 flow [2024-06-03 22:12:32,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 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) [2024-06-03 22:12:32,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:12:32,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:12:32,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-03 22:12:32,571 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)] === [2024-06-03 22:12:32,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:12:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -106180594, now seen corresponding path program 2 times [2024-06-03 22:12:32,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:12:32,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951984114] [2024-06-03 22:12:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:12:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:12:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:12:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:12:44,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:12:44,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951984114] [2024-06-03 22:12:44,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951984114] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:12:44,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:12:44,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 22:12:44,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782306543] [2024-06-03 22:12:44,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:12:44,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 22:12:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:12:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 22:12:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 22:12:44,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:12:44,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 269 transitions, 3584 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) [2024-06-03 22:12:44,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:12:44,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:12:44,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:12:47,212 INFO L124 PetriNetUnfolderBase]: 4431/6843 cut-off events. [2024-06-03 22:12:47,212 INFO L125 PetriNetUnfolderBase]: For 632158/632162 co-relation queries the response was YES. [2024-06-03 22:12:47,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59881 conditions, 6843 events. 4431/6843 cut-off events. For 632158/632162 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 39586 event pairs, 1084 based on Foata normal form. 5/6846 useless extension candidates. Maximal degree in co-relation 59778. Up to 6232 conditions per place. [2024-06-03 22:12:47,285 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 226 selfloop transitions, 70 changer transitions 0/303 dead transitions. [2024-06-03 22:12:47,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 303 transitions, 4699 flow [2024-06-03 22:12:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 22:12:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 22:12:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-06-03 22:12:47,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584717607973422 [2024-06-03 22:12:47,432 INFO L175 Difference]: Start difference. First operand has 209 places, 269 transitions, 3584 flow. Second operand 7 states and 138 transitions. [2024-06-03 22:12:47,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 303 transitions, 4699 flow [2024-06-03 22:12:48,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 303 transitions, 4619 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-06-03 22:12:48,030 INFO L231 Difference]: Finished difference. Result has 213 places, 282 transitions, 3935 flow [2024-06-03 22:12:48,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3504, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3935, PETRI_PLACES=213, PETRI_TRANSITIONS=282} [2024-06-03 22:12:48,030 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 169 predicate places. [2024-06-03 22:12:48,030 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 282 transitions, 3935 flow [2024-06-03 22:12:48,030 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) [2024-06-03 22:12:48,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:12:48,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:12:48,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-03 22:12:48,031 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:12:48,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:12:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash -391498599, now seen corresponding path program 4 times [2024-06-03 22:12:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:12:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408674875] [2024-06-03 22:12:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:12:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:12:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:12:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:12:57,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:12:57,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408674875] [2024-06-03 22:12:57,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408674875] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:12:57,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:12:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:12:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396182123] [2024-06-03 22:12:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:12:57,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:12:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:12:57,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:12:57,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:12:58,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:12:58,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 282 transitions, 3935 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:12:58,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:12:58,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:12:58,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:13:00,589 INFO L124 PetriNetUnfolderBase]: 4456/6882 cut-off events. [2024-06-03 22:13:00,589 INFO L125 PetriNetUnfolderBase]: For 657146/657150 co-relation queries the response was YES. [2024-06-03 22:13:00,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61009 conditions, 6882 events. 4456/6882 cut-off events. For 657146/657150 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 39839 event pairs, 1224 based on Foata normal form. 10/6890 useless extension candidates. Maximal degree in co-relation 60904. Up to 6645 conditions per place. [2024-06-03 22:13:00,661 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 275 selfloop transitions, 29 changer transitions 0/311 dead transitions. [2024-06-03 22:13:00,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 311 transitions, 4735 flow [2024-06-03 22:13:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:13:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:13:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-03 22:13:00,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.436046511627907 [2024-06-03 22:13:00,662 INFO L175 Difference]: Start difference. First operand has 213 places, 282 transitions, 3935 flow. Second operand 8 states and 150 transitions. [2024-06-03 22:13:00,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 311 transitions, 4735 flow [2024-06-03 22:13:01,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 311 transitions, 4637 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-06-03 22:13:01,457 INFO L231 Difference]: Finished difference. Result has 218 places, 285 transitions, 4033 flow [2024-06-03 22:13:01,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3837, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4033, PETRI_PLACES=218, PETRI_TRANSITIONS=285} [2024-06-03 22:13:01,457 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 174 predicate places. [2024-06-03 22:13:01,458 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 285 transitions, 4033 flow [2024-06-03 22:13:01,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:13:01,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:13:01,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:13:01,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-03 22:13:01,458 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:13:01,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:13:01,458 INFO L85 PathProgramCache]: Analyzing trace with hash -553809491, now seen corresponding path program 5 times [2024-06-03 22:13:01,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:13:01,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807462623] [2024-06-03 22:13:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:13:01,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:13:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:13:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:13:11,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:13:11,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807462623] [2024-06-03 22:13:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807462623] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:13:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:13:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:13:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555596245] [2024-06-03 22:13:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:13:11,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:13:11,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:13:11,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:13:11,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:13:11,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:13:11,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 285 transitions, 4033 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:13:11,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:13:11,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:13:11,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:13:13,907 INFO L124 PetriNetUnfolderBase]: 4506/6960 cut-off events. [2024-06-03 22:13:13,907 INFO L125 PetriNetUnfolderBase]: For 683785/683789 co-relation queries the response was YES. [2024-06-03 22:13:13,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61840 conditions, 6960 events. 4506/6960 cut-off events. For 683785/683789 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 40404 event pairs, 1226 based on Foata normal form. 10/6968 useless extension candidates. Maximal degree in co-relation 61734. Up to 6668 conditions per place. [2024-06-03 22:13:13,977 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 276 selfloop transitions, 34 changer transitions 0/317 dead transitions. [2024-06-03 22:13:13,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 317 transitions, 4861 flow [2024-06-03 22:13:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:13:13,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:13:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-03 22:13:13,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.438953488372093 [2024-06-03 22:13:13,978 INFO L175 Difference]: Start difference. First operand has 218 places, 285 transitions, 4033 flow. Second operand 8 states and 151 transitions. [2024-06-03 22:13:13,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 317 transitions, 4861 flow [2024-06-03 22:13:14,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 317 transitions, 4689 flow, removed 59 selfloop flow, removed 6 redundant places. [2024-06-03 22:13:14,938 INFO L231 Difference]: Finished difference. Result has 221 places, 291 transitions, 4099 flow [2024-06-03 22:13:14,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3861, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4099, PETRI_PLACES=221, PETRI_TRANSITIONS=291} [2024-06-03 22:13:14,938 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 177 predicate places. [2024-06-03 22:13:14,939 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 291 transitions, 4099 flow [2024-06-03 22:13:14,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:13:14,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:13:14,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:13:14,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-03 22:13:14,939 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)] === [2024-06-03 22:13:14,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:13:14,939 INFO L85 PathProgramCache]: Analyzing trace with hash -554024693, now seen corresponding path program 11 times [2024-06-03 22:13:14,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:13:14,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389491500] [2024-06-03 22:13:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:13:14,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:13:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:13:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:13:24,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:13:24,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389491500] [2024-06-03 22:13:24,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389491500] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:13:24,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:13:24,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:13:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815176431] [2024-06-03 22:13:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:13:24,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:13:24,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:13:24,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:13:24,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:13:24,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:13:24,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 291 transitions, 4099 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:13:24,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:13:24,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:13:24,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:13:27,037 INFO L124 PetriNetUnfolderBase]: 4592/7102 cut-off events. [2024-06-03 22:13:27,037 INFO L125 PetriNetUnfolderBase]: For 751546/751550 co-relation queries the response was YES. [2024-06-03 22:13:27,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63395 conditions, 7102 events. 4592/7102 cut-off events. For 751546/751550 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 41453 event pairs, 1228 based on Foata normal form. 34/7134 useless extension candidates. Maximal degree in co-relation 63287. Up to 6696 conditions per place. [2024-06-03 22:13:27,115 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 289 selfloop transitions, 32 changer transitions 0/328 dead transitions. [2024-06-03 22:13:27,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 328 transitions, 4970 flow [2024-06-03 22:13:27,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 22:13:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 22:13:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-03 22:13:27,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 22:13:27,116 INFO L175 Difference]: Start difference. First operand has 221 places, 291 transitions, 4099 flow. Second operand 9 states and 171 transitions. [2024-06-03 22:13:27,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 328 transitions, 4970 flow [2024-06-03 22:13:28,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 328 transitions, 4790 flow, removed 62 selfloop flow, removed 5 redundant places. [2024-06-03 22:13:28,186 INFO L231 Difference]: Finished difference. Result has 225 places, 293 transitions, 4118 flow [2024-06-03 22:13:28,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3919, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4118, PETRI_PLACES=225, PETRI_TRANSITIONS=293} [2024-06-03 22:13:28,187 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 181 predicate places. [2024-06-03 22:13:28,187 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 293 transitions, 4118 flow [2024-06-03 22:13:28,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:13:28,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:13:28,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:13:28,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-03 22:13:28,187 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)] === [2024-06-03 22:13:28,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:13:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash -134998089, now seen corresponding path program 6 times [2024-06-03 22:13:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:13:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774373142] [2024-06-03 22:13:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:13:28,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:13:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:13:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:13:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:13:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774373142] [2024-06-03 22:13:38,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774373142] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:13:38,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:13:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:13:38,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566099172] [2024-06-03 22:13:38,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:13:38,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:13:38,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:13:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:13:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:13:39,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:13:39,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 293 transitions, 4118 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:13:39,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:13:39,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:13:39,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:13:41,663 INFO L124 PetriNetUnfolderBase]: 4617/7141 cut-off events. [2024-06-03 22:13:41,663 INFO L125 PetriNetUnfolderBase]: For 738770/738774 co-relation queries the response was YES. [2024-06-03 22:13:41,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64059 conditions, 7141 events. 4617/7141 cut-off events. For 738770/738774 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 41764 event pairs, 1245 based on Foata normal form. 10/7149 useless extension candidates. Maximal degree in co-relation 63950. Up to 6839 conditions per place. [2024-06-03 22:13:41,742 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 270 selfloop transitions, 45 changer transitions 0/322 dead transitions. [2024-06-03 22:13:41,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 322 transitions, 4954 flow [2024-06-03 22:13:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:13:41,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:13:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-03 22:13:41,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 22:13:41,743 INFO L175 Difference]: Start difference. First operand has 225 places, 293 transitions, 4118 flow. Second operand 8 states and 152 transitions. [2024-06-03 22:13:41,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 322 transitions, 4954 flow [2024-06-03 22:13:42,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 322 transitions, 4794 flow, removed 50 selfloop flow, removed 7 redundant places. [2024-06-03 22:13:42,811 INFO L231 Difference]: Finished difference. Result has 226 places, 296 transitions, 4204 flow [2024-06-03 22:13:42,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3958, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4204, PETRI_PLACES=226, PETRI_TRANSITIONS=296} [2024-06-03 22:13:42,812 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 182 predicate places. [2024-06-03 22:13:42,812 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 296 transitions, 4204 flow [2024-06-03 22:13:42,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:13:42,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:13:42,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:13:42,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-03 22:13:42,813 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)] === [2024-06-03 22:13:42,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:13:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash -134998306, now seen corresponding path program 1 times [2024-06-03 22:13:42,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:13:42,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176657407] [2024-06-03 22:13:42,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:13:42,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:13:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:13:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:13:52,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:13:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176657407] [2024-06-03 22:13:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176657407] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:13:52,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:13:52,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 22:13:52,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333146075] [2024-06-03 22:13:52,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:13:52,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 22:13:52,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:13:52,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 22:13:52,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 22:13:53,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:13:53,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 296 transitions, 4204 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:13:53,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:13:53,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:13:53,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:13:56,055 INFO L124 PetriNetUnfolderBase]: 4617/7141 cut-off events. [2024-06-03 22:13:56,055 INFO L125 PetriNetUnfolderBase]: For 733342/733346 co-relation queries the response was YES. [2024-06-03 22:13:56,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63593 conditions, 7141 events. 4617/7141 cut-off events. For 733342/733346 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 41727 event pairs, 1236 based on Foata normal form. 7/7146 useless extension candidates. Maximal degree in co-relation 63483. Up to 6844 conditions per place. [2024-06-03 22:13:56,130 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 272 selfloop transitions, 47 changer transitions 0/326 dead transitions. [2024-06-03 22:13:56,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 326 transitions, 5048 flow [2024-06-03 22:13:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:13:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:13:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2024-06-03 22:13:56,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44476744186046513 [2024-06-03 22:13:56,131 INFO L175 Difference]: Start difference. First operand has 226 places, 296 transitions, 4204 flow. Second operand 8 states and 153 transitions. [2024-06-03 22:13:56,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 326 transitions, 5048 flow [2024-06-03 22:13:57,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 326 transitions, 4828 flow, removed 69 selfloop flow, removed 6 redundant places. [2024-06-03 22:13:57,015 INFO L231 Difference]: Finished difference. Result has 228 places, 300 transitions, 4236 flow [2024-06-03 22:13:57,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3986, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4236, PETRI_PLACES=228, PETRI_TRANSITIONS=300} [2024-06-03 22:13:57,016 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 184 predicate places. [2024-06-03 22:13:57,016 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 300 transitions, 4236 flow [2024-06-03 22:13:57,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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) [2024-06-03 22:13:57,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:13:57,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:13:57,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-03 22:13:57,016 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)] === [2024-06-03 22:13:57,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:13:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1334597033, now seen corresponding path program 7 times [2024-06-03 22:13:57,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:13:57,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365470063] [2024-06-03 22:13:57,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:13:57,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:13:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:14:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:14:08,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:14:08,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365470063] [2024-06-03 22:14:08,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365470063] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:14:08,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:14:08,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 22:14:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411716893] [2024-06-03 22:14:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:14:08,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 22:14:08,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:14:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 22:14:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-03 22:14:08,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-03 22:14:08,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 300 transitions, 4236 flow. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:14:08,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:14:08,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-03 22:14:08,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:14:11,795 INFO L124 PetriNetUnfolderBase]: 4642/7180 cut-off events. [2024-06-03 22:14:11,795 INFO L125 PetriNetUnfolderBase]: For 737323/737327 co-relation queries the response was YES. [2024-06-03 22:14:11,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63617 conditions, 7180 events. 4642/7180 cut-off events. For 737323/737327 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 42041 event pairs, 1243 based on Foata normal form. 10/7188 useless extension candidates. Maximal degree in co-relation 63506. Up to 6768 conditions per place. [2024-06-03 22:14:11,873 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 267 selfloop transitions, 55 changer transitions 0/329 dead transitions. [2024-06-03 22:14:11,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 329 transitions, 5086 flow [2024-06-03 22:14:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 22:14:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 22:14:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2024-06-03 22:14:11,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44476744186046513 [2024-06-03 22:14:11,875 INFO L175 Difference]: Start difference. First operand has 228 places, 300 transitions, 4236 flow. Second operand 8 states and 153 transitions. [2024-06-03 22:14:11,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 329 transitions, 5086 flow [2024-06-03 22:14:12,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 329 transitions, 4902 flow, removed 50 selfloop flow, removed 6 redundant places. [2024-06-03 22:14:12,837 INFO L231 Difference]: Finished difference. Result has 230 places, 303 transitions, 4320 flow [2024-06-03 22:14:12,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4320, PETRI_PLACES=230, PETRI_TRANSITIONS=303} [2024-06-03 22:14:12,838 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 186 predicate places. [2024-06-03 22:14:12,838 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 303 transitions, 4320 flow [2024-06-03 22:14:12,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2024-06-03 22:14:12,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:14:12,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:14:12,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-06-03 22:14:12,838 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 22:14:12,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:14:12,839 INFO L85 PathProgramCache]: Analyzing trace with hash -394190831, now seen corresponding path program 8 times [2024-06-03 22:14:12,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:14:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228322161] [2024-06-03 22:14:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:14:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:14:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15