./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix003_power.opt_pso.opt_rmo.opt_tso.opt.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/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix003_power.opt_pso.opt_rmo.opt_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 21:05:18,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:05:18,758 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:05:18,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:05:18,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:05:18,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:05:18,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:05:18,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:05:18,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:05:18,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:05:18,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:05:18,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:05:18,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:05:18,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:05:18,801 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:05:18,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:05:18,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:05:18,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:05:18,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:05:18,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:05:18,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:05:18,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:05:18,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:05:18,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:05:18,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:05:18,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:05:18,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:05:18,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:05:18,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:05:18,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:05:18,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:05:18,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:05:18,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:05:18,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:05:18,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:05:18,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:05:18,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:05:18,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:05:18,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:05:18,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:05:18,809 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:05:18,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:05:18,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:05:18,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:05:19,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:05:19,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:05:19,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:05:19,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:05:19,124 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:05:19,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i [2024-06-03 21:05:20,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:05:20,579 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:05:20,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i [2024-06-03 21:05:20,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74fc9ec7a/b7486cb75fc6495b9d5b1dd27bd4bd76/FLAGbd508d243 [2024-06-03 21:05:20,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74fc9ec7a/b7486cb75fc6495b9d5b1dd27bd4bd76 [2024-06-03 21:05:20,618 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:05:20,620 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:05:20,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix003_power.opt_pso.opt_rmo.opt_tso.opt.yml/witness.yml [2024-06-03 21:05:20,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:05:20,827 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:05:20,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:05:20,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:05:20,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:05:20,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:05:20" (1/2) ... [2024-06-03 21:05:20,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11822e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:05:20, skipping insertion in model container [2024-06-03 21:05:20,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:05:20" (1/2) ... [2024-06-03 21:05:20,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a55ac87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:05:20, skipping insertion in model container [2024-06-03 21:05:20,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:05:20" (2/2) ... [2024-06-03 21:05:20,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11822e60 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:05:20, skipping insertion in model container [2024-06-03 21:05:20,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:05:20" (2/2) ... [2024-06-03 21:05:20,839 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:05:20,953 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:05:20,955 INFO L97 edCorrectnessWitness]: Location invariant before [L854-L854] (((((((((((((((((((((! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EBX >= 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 )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff1 >= 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 )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff1 >= 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 )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )y$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff1 >= 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 )y$flush_delayed >= 0LL) && (long long )x + (long long )y$mem_tmp >= 0LL) && (long long )x + (long long )y$r_buff0_thd0 >= 0LL) && (long long )x + (long long )y$r_buff0_thd1 >= 0LL) && (long long )x + (long long )y$r_buff0_thd2 >= 0LL) && (long long )x + (long long )y$r_buff1_thd0 >= 0LL) && (long long )x + (long long )y$r_buff1_thd1 >= 0LL) && (long long )x + (long long )y$r_buff1_thd2 >= 0LL) && (long long )x + (long long )y$read_delayed >= 0LL) && (long long )x + (long long )y$w_buff0 >= 0LL) && (long long )x + (long long )y$w_buff1 >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )y + (long long )y$flush_delayed >= 0LL) && (long long )y + (long long )y$mem_tmp >= 0LL) && (long long )y + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y + (long long )y$read_delayed >= 0LL) && (long long )y + (long long )y$w_buff0 >= 0LL) && (long long )y + (long long )y$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y$flush_delayed + (long long )y$mem_tmp >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$flush_delayed + (long long )z >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff0 >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff1 >= 0LL) && (long long )y$mem_tmp + (long long )z >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )z >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )z >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )z >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )z >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )z >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )z >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$read_delayed + (long long )z >= 0LL) && (long long )y$w_buff0 + (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 + (long long )z >= 0LL) && (long long )y$w_buff1 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff1 >= 0LL) && (long long )weak$$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$$choice2 + (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (1LL + (long long )x) - (long long )z >= 0LL) && (1LL + (long long )y) - (long long )z >= 0LL) && (1LL + (long long )y$flush_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$mem_tmp) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$read_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff0) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff1) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$read_delayed) - (long long )z >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$read_delayed >= 0LL) && (long long )x - (long long )y$r_buff0_thd0 >= 0LL) && (long long )x - (long long )y$r_buff0_thd1 >= 0LL) && (long long )x - (long long )y$r_buff0_thd2 >= 0LL) && (long long )x - (long long )y$r_buff1_thd0 >= 0LL) && (long long )x - (long long )y$r_buff1_thd1 >= 0LL) && (long long )x - (long long )y$r_buff1_thd2 >= 0LL) && (long long )x - (long long )y$read_delayed >= 0LL) && (long long )y - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y - (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p1_EBX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p1_EBX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && y <= 1) && y$mem_tmp <= 1) && y$w_buff0 <= 1) && y$w_buff1 <= 1) && z <= 1) && y$flush_delayed == (_Bool)0) && y$r_buff0_thd0 == (_Bool)0) && y$r_buff0_thd1 == (_Bool)0) && y$r_buff0_thd2 == (_Bool)0) && y$r_buff1_thd0 == (_Bool)0) && y$r_buff1_thd1 == (_Bool)0) && y$r_buff1_thd2 == (_Bool)0) && y$read_delayed == (_Bool)0) && y$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (y$mem_tmp == 0 || y$mem_tmp == 1)) && (y$w_buff0 == 0 || y$w_buff0 == 1)) && (y$w_buff1 == 0 || y$w_buff1 == 1)) && (z == 0 || z == 1)))) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0) [2024-06-03 21:05:20,956 INFO L97 edCorrectnessWitness]: Location invariant before [L853-L853] (((((((((((((((((((((! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )y$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )y$flush_delayed >= 0LL) && (long long )x + (long long )y$mem_tmp >= 0LL) && (long long )x + (long long )y$r_buff0_thd0 >= 0LL) && (long long )x + (long long )y$r_buff0_thd1 >= 0LL) && (long long )x + (long long )y$r_buff0_thd2 >= 0LL) && (long long )x + (long long )y$r_buff1_thd0 >= 0LL) && (long long )x + (long long )y$r_buff1_thd1 >= 0LL) && (long long )x + (long long )y$r_buff1_thd2 >= 0LL) && (long long )x + (long long )y$read_delayed >= 0LL) && (long long )x + (long long )y$w_buff0 >= 0LL) && (long long )x + (long long )y$w_buff1 >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )y + (long long )y$flush_delayed >= 0LL) && (long long )y + (long long )y$mem_tmp >= 0LL) && (long long )y + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y + (long long )y$read_delayed >= 0LL) && (long long )y + (long long )y$w_buff0 >= 0LL) && (long long )y + (long long )y$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y$flush_delayed + (long long )y$mem_tmp >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$flush_delayed + (long long )z >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff0 >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff1 >= 0LL) && (long long )y$mem_tmp + (long long )z >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )z >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )z >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )z >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )z >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )z >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )z >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$read_delayed + (long long )z >= 0LL) && (long long )y$w_buff0 + (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 + (long long )z >= 0LL) && (long long )y$w_buff1 + (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 )y$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff1 >= 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 )y$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (1LL + (long long )x) - (long long )z >= 0LL) && (1LL + (long long )y) - (long long )z >= 0LL) && (1LL + (long long )y$flush_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$mem_tmp) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$read_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff0) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff1) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$read_delayed) - (long long )z >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$read_delayed >= 0LL) && (long long )x - (long long )y$r_buff0_thd0 >= 0LL) && (long long )x - (long long )y$r_buff0_thd1 >= 0LL) && (long long )x - (long long )y$r_buff0_thd2 >= 0LL) && (long long )x - (long long )y$r_buff1_thd0 >= 0LL) && (long long )x - (long long )y$r_buff1_thd1 >= 0LL) && (long long )x - (long long )y$r_buff1_thd2 >= 0LL) && (long long )x - (long long )y$read_delayed >= 0LL) && (long long )y - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y - (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p1_EBX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p1_EBX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && y <= 1) && y$mem_tmp <= 1) && y$w_buff0 <= 1) && y$w_buff1 <= 1) && z <= 1) && y$flush_delayed == (_Bool)0) && y$r_buff0_thd0 == (_Bool)0) && y$r_buff0_thd1 == (_Bool)0) && y$r_buff0_thd2 == (_Bool)0) && y$r_buff1_thd0 == (_Bool)0) && y$r_buff1_thd1 == (_Bool)0) && y$r_buff1_thd2 == (_Bool)0) && y$read_delayed == (_Bool)0) && y$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (y$mem_tmp == 0 || y$mem_tmp == 1)) && (y$w_buff0 == 0 || y$w_buff0 == 1)) && (y$w_buff1 == 0 || y$w_buff1 == 1)) && (z == 0 || z == 1)))) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0) [2024-06-03 21:05:20,956 INFO L97 edCorrectnessWitness]: Location invariant before [L851-L851] (((((((((((((((((((((! multithreaded || ((0 <= __unbuffered_p1_EBX && __unbuffered_p1_EBX <= 1) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )z >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )y$w_buff1 >= 0LL) && (0LL - (long long )y$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EBX >= 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 )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p1_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff1 >= 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 )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y$w_buff1 >= 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 )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )y$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff1 >= 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 )y$flush_delayed >= 0LL) && (long long )x + (long long )y$mem_tmp >= 0LL) && (long long )x + (long long )y$r_buff0_thd0 >= 0LL) && (long long )x + (long long )y$r_buff0_thd1 >= 0LL) && (long long )x + (long long )y$r_buff0_thd2 >= 0LL) && (long long )x + (long long )y$r_buff1_thd0 >= 0LL) && (long long )x + (long long )y$r_buff1_thd1 >= 0LL) && (long long )x + (long long )y$r_buff1_thd2 >= 0LL) && (long long )x + (long long )y$read_delayed >= 0LL) && (long long )x + (long long )y$w_buff0 >= 0LL) && (long long )x + (long long )y$w_buff1 >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )y + (long long )y$flush_delayed >= 0LL) && (long long )y + (long long )y$mem_tmp >= 0LL) && (long long )y + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y + (long long )y$read_delayed >= 0LL) && (long long )y + (long long )y$w_buff0 >= 0LL) && (long long )y + (long long )y$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y$flush_delayed + (long long )y$mem_tmp >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed + (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$flush_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$flush_delayed + (long long )z >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp + (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff0 >= 0LL) && (long long )y$mem_tmp + (long long )y$w_buff1 >= 0LL) && (long long )y$mem_tmp + (long long )z >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd0 + (long long )z >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd1 + (long long )z >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd2 + (long long )z >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd0 + (long long )z >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd1 + (long long )z >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd2 + (long long )z >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff0 >= 0LL) && (long long )y$read_delayed + (long long )y$w_buff1 >= 0LL) && (long long )y$read_delayed + (long long )z >= 0LL) && (long long )y$w_buff0 + (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 + (long long )z >= 0LL) && (long long )y$w_buff1 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )y$w_buff1 >= 0LL) && (long long )weak$$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$$choice2 + (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )y$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EBX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (1LL + (long long )x) - (long long )z >= 0LL) && (1LL + (long long )y) - (long long )z >= 0LL) && (1LL + (long long )y$flush_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$mem_tmp) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$read_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff0) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff1) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff0_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd0 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff0_thd2) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd1 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd0) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$r_buff1_thd2 >= 0LL) && (0LL - (long long )y$r_buff1_thd1) - (long long )y$read_delayed >= 0LL) && (0LL - (long long )y$r_buff1_thd2) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )y$read_delayed >= 0LL) && (1LL - (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL - (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL - (long long )y$read_delayed) - (long long )z >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )z >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EBX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )y$read_delayed >= 0LL) && (long long )x - (long long )y$r_buff0_thd0 >= 0LL) && (long long )x - (long long )y$r_buff0_thd1 >= 0LL) && (long long )x - (long long )y$r_buff0_thd2 >= 0LL) && (long long )x - (long long )y$r_buff1_thd0 >= 0LL) && (long long )x - (long long )y$r_buff1_thd1 >= 0LL) && (long long )x - (long long )y$r_buff1_thd2 >= 0LL) && (long long )x - (long long )y$read_delayed >= 0LL) && (long long )y - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y - (long long )y$read_delayed >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$flush_delayed - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$flush_delayed - (long long )y$read_delayed >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$mem_tmp - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$mem_tmp - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd2 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd0 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff1_thd1 - (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd2 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )y$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )y$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p1_EBX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p1_EAX <= 1) && __unbuffered_p1_EBX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && y <= 1) && y$mem_tmp <= 1) && y$w_buff0 <= 1) && y$w_buff1 <= 1) && z <= 1) && y$flush_delayed == (_Bool)0) && y$r_buff0_thd0 == (_Bool)0) && y$r_buff0_thd1 == (_Bool)0) && y$r_buff0_thd2 == (_Bool)0) && y$r_buff1_thd0 == (_Bool)0) && y$r_buff1_thd1 == (_Bool)0) && y$r_buff1_thd2 == (_Bool)0) && y$read_delayed == (_Bool)0) && y$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p1_EBX == 0 || __unbuffered_p1_EBX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (y == 0 || y == 1)) && (y$mem_tmp == 0 || y$mem_tmp == 1)) && (y$w_buff0 == 0 || y$w_buff0 == 1)) && (y$w_buff1 == 0 || y$w_buff1 == 1)) && (z == 0 || z == 1)))) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0) [2024-06-03 21:05:20,957 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:05:20,957 INFO L106 edCorrectnessWitness]: ghost_update [L849-L849] multithreaded = 1; [2024-06-03 21:05:21,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:05:21,323 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:05:21,341 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:05:21,700 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:05:21,745 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:05:21,746 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:05:21 WrapperNode [2024-06-03 21:05:21,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:05:21,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:05:21,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:05:21,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:05:21,755 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 09:05:21" (1/1) ... [2024-06-03 21:05:21,825 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 09:05:21" (1/1) ... [2024-06-03 21:05:21,971 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2024-06-03 21:05:21,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:05:21,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:05:21,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:05:21,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:05:21,984 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 09:05:21" (1/1) ... [2024-06-03 21:05:21,984 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,012 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,080 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 21:05:22,081 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,081 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,132 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,134 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,161 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,168 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:05:22,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:05:22,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:05:22,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:05:22,210 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 09:05:21" (1/1) ... [2024-06-03 21:05:22,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:05:22,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:05:22,241 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 21:05:22,268 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 21:05:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:05:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:05:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-03 21:05:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-03 21:05:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-03 21:05:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-03 21:05:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-03 21:05:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-03 21:05:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:05:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:05:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:05:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:05:22,292 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 21:05:22,436 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:05:22,438 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:05:24,064 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:05:24,065 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:05:24,423 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:05:24,424 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 21:05:24,425 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:05:24 BoogieIcfgContainer [2024-06-03 21:05:24,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:05:24,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:05:24,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:05:24,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:05:24,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:05:20" (1/4) ... [2024-06-03 21:05:24,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e55de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:05:24, skipping insertion in model container [2024-06-03 21:05:24,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:05:20" (2/4) ... [2024-06-03 21:05:24,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e55de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:05:24, skipping insertion in model container [2024-06-03 21:05:24,434 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 09:05:21" (3/4) ... [2024-06-03 21:05:24,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e55de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:05:24, skipping insertion in model container [2024-06-03 21:05:24,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:05:24" (4/4) ... [2024-06-03 21:05:24,436 INFO L112 eAbstractionObserver]: Analyzing ICFG mix003_power.opt_pso.opt_rmo.opt_tso.opt.i [2024-06-03 21:05:24,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:05:24,453 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-03 21:05:24,453 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:05:24,617 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-03 21:05:24,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 98 flow [2024-06-03 21:05:24,734 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-06-03 21:05:24,735 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:05:24,738 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 65 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 21:05:24,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 43 transitions, 98 flow [2024-06-03 21:05:24,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-06-03 21:05:24,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:05:24,763 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;@44541f4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:05:24,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-03 21:05:24,775 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:05:24,776 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 21:05:24,776 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:05:24,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:05:24,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 21:05:24,778 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 21:05:24,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:05:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash -377810500, now seen corresponding path program 1 times [2024-06-03 21:05:24,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:05:24,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628530259] [2024-06-03 21:05:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:05:24,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:05:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:05:33,400 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 21:05:33,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:05:33,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628530259] [2024-06-03 21:05:33,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628530259] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:05:33,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:05:33,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 21:05:33,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745445528] [2024-06-03 21:05:33,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:05:33,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:05:33,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:05:33,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:05:33,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:05:33,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-06-03 21:05:33,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 21:05:33,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:05:33,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-06-03 21:05:33,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:05:34,608 INFO L124 PetriNetUnfolderBase]: 869/1406 cut-off events. [2024-06-03 21:05:34,609 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-06-03 21:05:34,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2786 conditions, 1406 events. 869/1406 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7216 event pairs, 566 based on Foata normal form. 1/1349 useless extension candidates. Maximal degree in co-relation 2771. Up to 1315 conditions per place. [2024-06-03 21:05:34,626 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 32 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-06-03 21:05:34,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 175 flow [2024-06-03 21:05:34,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:05:34,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:05:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-03 21:05:34,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.627906976744186 [2024-06-03 21:05:34,640 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 81 transitions. [2024-06-03 21:05:34,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 175 flow [2024-06-03 21:05:34,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 21:05:34,647 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 104 flow [2024-06-03 21:05:34,649 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 21:05:34,652 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-06-03 21:05:34,652 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 104 flow [2024-06-03 21:05:34,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 21:05:34,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:05:34,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:05:34,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:05:34,654 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 21:05:34,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:05:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1996366299, now seen corresponding path program 1 times [2024-06-03 21:05:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:05:34,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917744017] [2024-06-03 21:05:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:05:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:05:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:05:40,948 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 21:05:40,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:05:40,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917744017] [2024-06-03 21:05:40,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917744017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:05:40,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:05:40,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 21:05:40,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600226164] [2024-06-03 21:05:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:05:40,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 21:05:40,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:05:40,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 21:05:40,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-03 21:05:41,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-06-03 21:05:41,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 21:05:41,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:05:41,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-06-03 21:05:41,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:05:42,056 INFO L124 PetriNetUnfolderBase]: 996/1572 cut-off events. [2024-06-03 21:05:42,057 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2024-06-03 21:05:42,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 1572 events. 996/1572 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7871 event pairs, 519 based on Foata normal form. 3/1572 useless extension candidates. Maximal degree in co-relation 3574. Up to 1484 conditions per place. [2024-06-03 21:05:42,069 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 40 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-06-03 21:05:42,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 244 flow [2024-06-03 21:05:42,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 21:05:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 21:05:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-06-03 21:05:42,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5930232558139535 [2024-06-03 21:05:42,072 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 104 flow. Second operand 4 states and 102 transitions. [2024-06-03 21:05:42,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 244 flow [2024-06-03 21:05:42,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 21:05:42,078 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 140 flow [2024-06-03 21:05:42,078 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 21:05:42,079 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-06-03 21:05:42,079 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 140 flow [2024-06-03 21:05:42,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states 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 21:05:42,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:05:42,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:05:42,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 21:05:42,083 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 21:05:42,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:05:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1337464378, now seen corresponding path program 1 times [2024-06-03 21:05:42,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:05:42,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085886473] [2024-06-03 21:05:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:05:42,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:05:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:05:48,560 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 21:05:48,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:05:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085886473] [2024-06-03 21:05:48,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085886473] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:05:48,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:05:48,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:05:48,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021995626] [2024-06-03 21:05:48,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:05:48,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 21:05:48,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:05:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 21:05:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-03 21:05:48,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:05:48,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:05:48,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:05:48,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:05:48,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:05:49,945 INFO L124 PetriNetUnfolderBase]: 1265/1959 cut-off events. [2024-06-03 21:05:49,946 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-06-03 21:05:49,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4958 conditions, 1959 events. 1265/1959 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9637 event pairs, 445 based on Foata normal form. 6/1959 useless extension candidates. Maximal degree in co-relation 4941. Up to 1828 conditions per place. [2024-06-03 21:05:49,960 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 52 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2024-06-03 21:05:49,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 356 flow [2024-06-03 21:05:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:05:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:05:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-06-03 21:05:49,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387596899224806 [2024-06-03 21:05:49,969 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 140 flow. Second operand 6 states and 139 transitions. [2024-06-03 21:05:49,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 356 flow [2024-06-03 21:05:49,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 70 transitions, 336 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-03 21:05:49,974 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 183 flow [2024-06-03 21:05:49,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2024-06-03 21:05:49,976 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 7 predicate places. [2024-06-03 21:05:49,976 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 183 flow [2024-06-03 21:05:49,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:05:49,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:05:49,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:05:49,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 21:05:49,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:05:49,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:05:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash 668599817, now seen corresponding path program 1 times [2024-06-03 21:05:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:05:49,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047523213] [2024-06-03 21:05:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:05:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:05:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:06:00,736 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 21:06:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:06:00,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047523213] [2024-06-03 21:06:00,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047523213] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:06:00,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:06:00,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:06:00,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42911935] [2024-06-03 21:06:00,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:06:00,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 21:06:00,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:06:00,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 21:06:00,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-03 21:06:00,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:06:00,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 21:06:00,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:06:00,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:06:00,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:06:02,076 INFO L124 PetriNetUnfolderBase]: 1333/2085 cut-off events. [2024-06-03 21:06:02,076 INFO L125 PetriNetUnfolderBase]: For 2082/2082 co-relation queries the response was YES. [2024-06-03 21:06:02,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5740 conditions, 2085 events. 1333/2085 cut-off events. For 2082/2082 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 10389 event pairs, 592 based on Foata normal form. 2/2046 useless extension candidates. Maximal degree in co-relation 5721. Up to 1980 conditions per place. [2024-06-03 21:06:02,091 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 44 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2024-06-03 21:06:02,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 329 flow [2024-06-03 21:06:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:06:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:06:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2024-06-03 21:06:02,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697674418604651 [2024-06-03 21:06:02,093 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 183 flow. Second operand 5 states and 101 transitions. [2024-06-03 21:06:02,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 329 flow [2024-06-03 21:06:02,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 302 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-03 21:06:02,099 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 200 flow [2024-06-03 21:06:02,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-06-03 21:06:02,101 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-06-03 21:06:02,101 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 200 flow [2024-06-03 21:06:02,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 21:06:02,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:06:02,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:06:02,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-03 21:06:02,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:06:02,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:06:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash -737515851, now seen corresponding path program 1 times [2024-06-03 21:06:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:06:02,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004308329] [2024-06-03 21:06:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:06:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:06:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:06:13,220 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 21:06:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:06:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004308329] [2024-06-03 21:06:13,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004308329] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:06:13,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:06:13,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:06:13,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931797675] [2024-06-03 21:06:13,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:06:13,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:06:13,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:06:13,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:06:13,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:06:13,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:06:13,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 200 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:13,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:06:13,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:06:13,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:06:14,547 INFO L124 PetriNetUnfolderBase]: 1323/2107 cut-off events. [2024-06-03 21:06:14,547 INFO L125 PetriNetUnfolderBase]: For 3045/3045 co-relation queries the response was YES. [2024-06-03 21:06:14,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6177 conditions, 2107 events. 1323/2107 cut-off events. For 3045/3045 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10641 event pairs, 556 based on Foata normal form. 4/2102 useless extension candidates. Maximal degree in co-relation 6156. Up to 1948 conditions per place. [2024-06-03 21:06:14,562 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 49 selfloop transitions, 11 changer transitions 0/66 dead transitions. [2024-06-03 21:06:14,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 66 transitions, 378 flow [2024-06-03 21:06:14,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:06:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:06:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-06-03 21:06:14,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 21:06:14,564 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 200 flow. Second operand 6 states and 120 transitions. [2024-06-03 21:06:14,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 66 transitions, 378 flow [2024-06-03 21:06:14,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 358 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-03 21:06:14,567 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 234 flow [2024-06-03 21:06:14,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-06-03 21:06:14,568 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2024-06-03 21:06:14,568 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 234 flow [2024-06-03 21:06:14,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:14,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:06:14,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:06:14,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-03 21:06:14,569 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 21:06:14,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:06:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1181685930, now seen corresponding path program 1 times [2024-06-03 21:06:14,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:06:14,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365672537] [2024-06-03 21:06:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:06:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:06:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:06:24,834 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 21:06:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:06:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365672537] [2024-06-03 21:06:24,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365672537] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:06:24,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:06:24,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:06:24,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654329431] [2024-06-03 21:06:24,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:06:24,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:06:24,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:06:24,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:06:24,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:06:24,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:06:24,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:24,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:06:24,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:06:24,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:06:26,268 INFO L124 PetriNetUnfolderBase]: 1541/2335 cut-off events. [2024-06-03 21:06:26,269 INFO L125 PetriNetUnfolderBase]: For 5142/5146 co-relation queries the response was YES. [2024-06-03 21:06:26,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7555 conditions, 2335 events. 1541/2335 cut-off events. For 5142/5146 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11192 event pairs, 656 based on Foata normal form. 6/2340 useless extension candidates. Maximal degree in co-relation 7533. Up to 2244 conditions per place. [2024-06-03 21:06:26,285 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 55 selfloop transitions, 16 changer transitions 0/76 dead transitions. [2024-06-03 21:06:26,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 76 transitions, 486 flow [2024-06-03 21:06:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:06:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:06:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-06-03 21:06:26,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4689922480620155 [2024-06-03 21:06:26,287 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 234 flow. Second operand 6 states and 121 transitions. [2024-06-03 21:06:26,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 76 transitions, 486 flow [2024-06-03 21:06:26,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 456 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-03 21:06:26,293 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 290 flow [2024-06-03 21:06:26,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=290, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2024-06-03 21:06:26,296 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2024-06-03 21:06:26,297 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 290 flow [2024-06-03 21:06:26,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:26,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:06:26,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:06:26,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-03 21:06:26,297 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 21:06:26,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:06:26,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1376369794, now seen corresponding path program 2 times [2024-06-03 21:06:26,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:06:26,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482054089] [2024-06-03 21:06:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:06:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:06:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:06:36,575 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 21:06:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:06:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482054089] [2024-06-03 21:06:36,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482054089] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:06:36,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:06:36,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:06:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074926519] [2024-06-03 21:06:36,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:06:36,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:06:36,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:06:36,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:06:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:06:36,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:06:36,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 290 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:36,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:06:36,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:06:36,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:06:38,151 INFO L124 PetriNetUnfolderBase]: 1536/2327 cut-off events. [2024-06-03 21:06:38,152 INFO L125 PetriNetUnfolderBase]: For 6822/6822 co-relation queries the response was YES. [2024-06-03 21:06:38,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8050 conditions, 2327 events. 1536/2327 cut-off events. For 6822/6822 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11143 event pairs, 652 based on Foata normal form. 2/2328 useless extension candidates. Maximal degree in co-relation 8027. Up to 2239 conditions per place. [2024-06-03 21:06:38,165 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 60 selfloop transitions, 17 changer transitions 0/82 dead transitions. [2024-06-03 21:06:38,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 82 transitions, 510 flow [2024-06-03 21:06:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:06:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:06:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-03 21:06:38,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.438953488372093 [2024-06-03 21:06:38,167 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 290 flow. Second operand 8 states and 151 transitions. [2024-06-03 21:06:38,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 82 transitions, 510 flow [2024-06-03 21:06:38,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 82 transitions, 476 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-06-03 21:06:38,173 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 298 flow [2024-06-03 21:06:38,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=298, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2024-06-03 21:06:38,174 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 20 predicate places. [2024-06-03 21:06:38,174 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 298 flow [2024-06-03 21:06:38,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:06:38,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:06:38,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:06:38,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-03 21:06:38,175 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 21:06:38,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:06:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2022323220, now seen corresponding path program 1 times [2024-06-03 21:06:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:06:38,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87062837] [2024-06-03 21:06:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:06:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:06:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:06:49,790 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 21:06:49,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:06:49,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87062837] [2024-06-03 21:06:49,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87062837] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:06:49,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:06:49,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:06:49,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648075007] [2024-06-03 21:06:49,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:06:49,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:06:49,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:06:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:06:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:06:49,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:06:49,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 298 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:06:49,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:06:49,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:06:49,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:06:51,167 INFO L124 PetriNetUnfolderBase]: 1547/2348 cut-off events. [2024-06-03 21:06:51,167 INFO L125 PetriNetUnfolderBase]: For 8046/8046 co-relation queries the response was YES. [2024-06-03 21:06:51,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8249 conditions, 2348 events. 1547/2348 cut-off events. For 8046/8046 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11283 event pairs, 631 based on Foata normal form. 2/2349 useless extension candidates. Maximal degree in co-relation 8224. Up to 2258 conditions per place. [2024-06-03 21:06:51,181 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 65 selfloop transitions, 14 changer transitions 0/84 dead transitions. [2024-06-03 21:06:51,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 544 flow [2024-06-03 21:06:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:06:51,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:06:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-03 21:06:51,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45514950166112955 [2024-06-03 21:06:51,182 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 298 flow. Second operand 7 states and 137 transitions. [2024-06-03 21:06:51,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 544 flow [2024-06-03 21:06:51,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 498 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-06-03 21:06:51,187 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 318 flow [2024-06-03 21:06:51,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=318, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2024-06-03 21:06:51,188 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 19 predicate places. [2024-06-03 21:06:51,188 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 318 flow [2024-06-03 21:06:51,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:06:51,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:06:51,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:06:51,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-03 21:06:51,189 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 21:06:51,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:06:51,190 INFO L85 PathProgramCache]: Analyzing trace with hash -89753958, now seen corresponding path program 2 times [2024-06-03 21:06:51,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:06:51,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265411961] [2024-06-03 21:06:51,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:06:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:06:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:07:02,667 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 21:07:02,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:07:02,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265411961] [2024-06-03 21:07:02,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265411961] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:07:02,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:07:02,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:07:02,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791298558] [2024-06-03 21:07:02,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:07:02,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:07:02,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:07:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:07:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:07:02,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:07:02,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 318 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:02,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:07:02,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:07:02,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:07:03,902 INFO L124 PetriNetUnfolderBase]: 1558/2374 cut-off events. [2024-06-03 21:07:03,902 INFO L125 PetriNetUnfolderBase]: For 10577/10581 co-relation queries the response was YES. [2024-06-03 21:07:03,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8844 conditions, 2374 events. 1558/2374 cut-off events. For 10577/10581 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11535 event pairs, 635 based on Foata normal form. 6/2379 useless extension candidates. Maximal degree in co-relation 8819. Up to 2227 conditions per place. [2024-06-03 21:07:03,918 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 58 selfloop transitions, 26 changer transitions 0/89 dead transitions. [2024-06-03 21:07:03,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 89 transitions, 638 flow [2024-06-03 21:07:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:07:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:07:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 140 transitions. [2024-06-03 21:07:03,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 21:07:03,920 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 318 flow. Second operand 7 states and 140 transitions. [2024-06-03 21:07:03,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 89 transitions, 638 flow [2024-06-03 21:07:03,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 89 transitions, 596 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-06-03 21:07:03,927 INFO L231 Difference]: Finished difference. Result has 65 places, 65 transitions, 402 flow [2024-06-03 21:07:03,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=402, PETRI_PLACES=65, PETRI_TRANSITIONS=65} [2024-06-03 21:07:03,928 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2024-06-03 21:07:03,928 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 402 flow [2024-06-03 21:07:03,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:03,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:07:03,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:07:03,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-03 21:07:03,929 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 21:07:03,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:07:03,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1977015970, now seen corresponding path program 1 times [2024-06-03 21:07:03,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:07:03,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188769721] [2024-06-03 21:07:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:07:03,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:07:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:07:15,697 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 21:07:15,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:07:15,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188769721] [2024-06-03 21:07:15,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188769721] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:07:15,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:07:15,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:07:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990131640] [2024-06-03 21:07:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:07:15,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:07:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:07:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:07:15,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:07:15,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:07:15,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 402 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:15,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:07:15,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:07:15,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:07:17,028 INFO L124 PetriNetUnfolderBase]: 1580/2406 cut-off events. [2024-06-03 21:07:17,028 INFO L125 PetriNetUnfolderBase]: For 13710/13710 co-relation queries the response was YES. [2024-06-03 21:07:17,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9519 conditions, 2406 events. 1580/2406 cut-off events. For 13710/13710 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11667 event pairs, 583 based on Foata normal form. 4/2407 useless extension candidates. Maximal degree in co-relation 9493. Up to 2233 conditions per place. [2024-06-03 21:07:17,042 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 70 selfloop transitions, 23 changer transitions 0/98 dead transitions. [2024-06-03 21:07:17,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 98 transitions, 742 flow [2024-06-03 21:07:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:07:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:07:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2024-06-03 21:07:17,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750830564784053 [2024-06-03 21:07:17,044 INFO L175 Difference]: Start difference. First operand has 65 places, 65 transitions, 402 flow. Second operand 7 states and 143 transitions. [2024-06-03 21:07:17,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 98 transitions, 742 flow [2024-06-03 21:07:17,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 702 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-06-03 21:07:17,054 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 474 flow [2024-06-03 21:07:17,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=474, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2024-06-03 21:07:17,056 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 25 predicate places. [2024-06-03 21:07:17,056 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 474 flow [2024-06-03 21:07:17,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:17,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:07:17,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:07:17,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-03 21:07:17,058 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 21:07:17,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:07:17,058 INFO L85 PathProgramCache]: Analyzing trace with hash 277085658, now seen corresponding path program 2 times [2024-06-03 21:07:17,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:07:17,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180350147] [2024-06-03 21:07:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:07:17,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:07:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:07:27,924 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 21:07:27,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:07:27,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180350147] [2024-06-03 21:07:27,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180350147] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:07:27,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:07:27,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:07:27,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350429761] [2024-06-03 21:07:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:07:27,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:07:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:07:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:07:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:07:28,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:07:28,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 474 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:28,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:07:28,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:07:28,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:07:29,409 INFO L124 PetriNetUnfolderBase]: 1602/2444 cut-off events. [2024-06-03 21:07:29,409 INFO L125 PetriNetUnfolderBase]: For 16688/16692 co-relation queries the response was YES. [2024-06-03 21:07:29,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10256 conditions, 2444 events. 1602/2444 cut-off events. For 16688/16692 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11910 event pairs, 580 based on Foata normal form. 8/2451 useless extension candidates. Maximal degree in co-relation 10228. Up to 2252 conditions per place. [2024-06-03 21:07:29,422 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 65 selfloop transitions, 27 changer transitions 0/97 dead transitions. [2024-06-03 21:07:29,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 97 transitions, 786 flow [2024-06-03 21:07:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:07:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:07:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-06-03 21:07:29,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584717607973422 [2024-06-03 21:07:29,426 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 474 flow. Second operand 7 states and 138 transitions. [2024-06-03 21:07:29,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 97 transitions, 786 flow [2024-06-03 21:07:29,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 752 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-03 21:07:29,440 INFO L231 Difference]: Finished difference. Result has 73 places, 74 transitions, 534 flow [2024-06-03 21:07:29,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=534, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2024-06-03 21:07:29,441 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 29 predicate places. [2024-06-03 21:07:29,441 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 534 flow [2024-06-03 21:07:29,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:29,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:07:29,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:07:29,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-03 21:07:29,443 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 21:07:29,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:07:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1799884636, now seen corresponding path program 3 times [2024-06-03 21:07:29,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:07:29,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844510854] [2024-06-03 21:07:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:07:29,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:07:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:07:40,461 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 21:07:40,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:07:40,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844510854] [2024-06-03 21:07:40,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844510854] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:07:40,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:07:40,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:07:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690268355] [2024-06-03 21:07:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:07:40,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:07:40,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:07:40,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:07:40,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:07:40,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:07:40,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 74 transitions, 534 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:40,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:07:40,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:07:40,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:07:41,808 INFO L124 PetriNetUnfolderBase]: 1597/2435 cut-off events. [2024-06-03 21:07:41,809 INFO L125 PetriNetUnfolderBase]: For 18783/18783 co-relation queries the response was YES. [2024-06-03 21:07:41,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10524 conditions, 2435 events. 1597/2435 cut-off events. For 18783/18783 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11823 event pairs, 614 based on Foata normal form. 2/2436 useless extension candidates. Maximal degree in co-relation 10494. Up to 2286 conditions per place. [2024-06-03 21:07:41,821 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 72 selfloop transitions, 27 changer transitions 0/104 dead transitions. [2024-06-03 21:07:41,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 808 flow [2024-06-03 21:07:41,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:07:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:07:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-03 21:07:41,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392764857881137 [2024-06-03 21:07:41,824 INFO L175 Difference]: Start difference. First operand has 73 places, 74 transitions, 534 flow. Second operand 9 states and 170 transitions. [2024-06-03 21:07:41,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 808 flow [2024-06-03 21:07:41,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 728 flow, removed 21 selfloop flow, removed 4 redundant places. [2024-06-03 21:07:41,842 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 516 flow [2024-06-03 21:07:41,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=516, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-06-03 21:07:41,842 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 34 predicate places. [2024-06-03 21:07:41,843 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 516 flow [2024-06-03 21:07:41,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:41,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:07:41,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:07:41,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-03 21:07:41,844 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 21:07:41,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:07:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1799884450, now seen corresponding path program 3 times [2024-06-03 21:07:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:07:41,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383994658] [2024-06-03 21:07:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:07:41,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:07:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:07:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:07:52,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:07:52,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383994658] [2024-06-03 21:07:52,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383994658] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:07:52,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:07:52,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:07:52,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936865628] [2024-06-03 21:07:52,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:07:52,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:07:52,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:07:52,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:07:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:07:52,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:07:52,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 516 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:52,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:07:52,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:07:52,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:07:54,048 INFO L124 PetriNetUnfolderBase]: 1587/2423 cut-off events. [2024-06-03 21:07:54,048 INFO L125 PetriNetUnfolderBase]: For 21065/21069 co-relation queries the response was YES. [2024-06-03 21:07:54,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10555 conditions, 2423 events. 1587/2423 cut-off events. For 21065/21069 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11814 event pairs, 578 based on Foata normal form. 8/2430 useless extension candidates. Maximal degree in co-relation 10524. Up to 2237 conditions per place. [2024-06-03 21:07:54,058 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 65 selfloop transitions, 26 changer transitions 0/96 dead transitions. [2024-06-03 21:07:54,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 96 transitions, 752 flow [2024-06-03 21:07:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:07:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:07:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-06-03 21:07:54,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4584717607973422 [2024-06-03 21:07:54,059 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 516 flow. Second operand 7 states and 138 transitions. [2024-06-03 21:07:54,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 96 transitions, 752 flow [2024-06-03 21:07:54,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 96 transitions, 668 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-06-03 21:07:54,073 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 492 flow [2024-06-03 21:07:54,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=492, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-06-03 21:07:54,073 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 33 predicate places. [2024-06-03 21:07:54,074 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 492 flow [2024-06-03 21:07:54,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states 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 21:07:54,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:07:54,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:07:54,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-03 21:07:54,074 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 21:07:54,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:07:54,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1510036908, now seen corresponding path program 1 times [2024-06-03 21:07:54,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:07:54,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215342098] [2024-06-03 21:07:54,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:07:54,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:07:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:08:05,707 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 21:08:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:08:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215342098] [2024-06-03 21:08:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215342098] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:08:05,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:08:05,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 21:08:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579760091] [2024-06-03 21:08:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:08:05,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-03 21:08:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:08:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-03 21:08:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-03 21:08:05,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-06-03 21:08:05,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:05,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:08:05,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-06-03 21:08:05,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:08:06,656 INFO L124 PetriNetUnfolderBase]: 1183/2002 cut-off events. [2024-06-03 21:08:06,656 INFO L125 PetriNetUnfolderBase]: For 18881/18881 co-relation queries the response was YES. [2024-06-03 21:08:06,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8598 conditions, 2002 events. 1183/2002 cut-off events. For 18881/18881 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 10834 event pairs, 488 based on Foata normal form. 1/2002 useless extension candidates. Maximal degree in co-relation 8566. Up to 1736 conditions per place. [2024-06-03 21:08:06,666 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 57 selfloop transitions, 8 changer transitions 0/85 dead transitions. [2024-06-03 21:08:06,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 85 transitions, 660 flow [2024-06-03 21:08:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 21:08:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 21:08:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2024-06-03 21:08:06,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2024-06-03 21:08:06,667 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 492 flow. Second operand 5 states and 105 transitions. [2024-06-03 21:08:06,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 85 transitions, 660 flow [2024-06-03 21:08:06,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 85 transitions, 586 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-03 21:08:06,677 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 464 flow [2024-06-03 21:08:06,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=464, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2024-06-03 21:08:06,678 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 31 predicate places. [2024-06-03 21:08:06,678 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 464 flow [2024-06-03 21:08:06,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:06,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:08:06,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:08:06,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-03 21:08:06,679 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 21:08:06,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:08:06,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1728913158, now seen corresponding path program 1 times [2024-06-03 21:08:06,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:08:06,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042033551] [2024-06-03 21:08:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:08:06,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:08:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:08:18,698 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 21:08:18,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:08:18,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042033551] [2024-06-03 21:08:18,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042033551] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:08:18,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:08:18,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:08:18,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729863542] [2024-06-03 21:08:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:08:18,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:08:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:08:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:08:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:08:18,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:08:18,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 464 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:18,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:08:18,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:08:18,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:08:20,230 INFO L124 PetriNetUnfolderBase]: 1606/2452 cut-off events. [2024-06-03 21:08:20,230 INFO L125 PetriNetUnfolderBase]: For 26147/26147 co-relation queries the response was YES. [2024-06-03 21:08:20,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11239 conditions, 2452 events. 1606/2452 cut-off events. For 26147/26147 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 11941 event pairs, 599 based on Foata normal form. 4/2455 useless extension candidates. Maximal degree in co-relation 11206. Up to 2327 conditions per place. [2024-06-03 21:08:20,242 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 88 selfloop transitions, 17 changer transitions 0/110 dead transitions. [2024-06-03 21:08:20,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 784 flow [2024-06-03 21:08:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:08:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:08:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-03 21:08:20,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-03 21:08:20,246 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 464 flow. Second operand 8 states and 155 transitions. [2024-06-03 21:08:20,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 784 flow [2024-06-03 21:08:20,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 110 transitions, 760 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-06-03 21:08:20,260 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 522 flow [2024-06-03 21:08:20,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=522, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2024-06-03 21:08:20,261 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 36 predicate places. [2024-06-03 21:08:20,261 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 522 flow [2024-06-03 21:08:20,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:20,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:08:20,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:08:20,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-03 21:08:20,262 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 21:08:20,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:08:20,262 INFO L85 PathProgramCache]: Analyzing trace with hash -161149116, now seen corresponding path program 2 times [2024-06-03 21:08:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:08:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151024504] [2024-06-03 21:08:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:08:20,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:08:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:08:31,919 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 21:08:31,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:08:31,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151024504] [2024-06-03 21:08:31,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151024504] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:08:31,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:08:31,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:08:31,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576997353] [2024-06-03 21:08:31,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:08:31,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:08:31,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:08:31,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:08:31,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:08:32,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:08:32,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 522 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:32,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:08:32,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:08:32,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:08:33,616 INFO L124 PetriNetUnfolderBase]: 1660/2548 cut-off events. [2024-06-03 21:08:33,616 INFO L125 PetriNetUnfolderBase]: For 31062/31062 co-relation queries the response was YES. [2024-06-03 21:08:33,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12292 conditions, 2548 events. 1660/2548 cut-off events. For 31062/31062 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12546 event pairs, 542 based on Foata normal form. 4/2549 useless extension candidates. Maximal degree in co-relation 12258. Up to 2192 conditions per place. [2024-06-03 21:08:33,629 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 76 selfloop transitions, 43 changer transitions 0/124 dead transitions. [2024-06-03 21:08:33,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 124 transitions, 1080 flow [2024-06-03 21:08:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:08:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:08:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2024-06-03 21:08:33,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2024-06-03 21:08:33,631 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 522 flow. Second operand 8 states and 168 transitions. [2024-06-03 21:08:33,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 124 transitions, 1080 flow [2024-06-03 21:08:33,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 1022 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-06-03 21:08:33,643 INFO L231 Difference]: Finished difference. Result has 82 places, 89 transitions, 684 flow [2024-06-03 21:08:33,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=82, PETRI_TRANSITIONS=89} [2024-06-03 21:08:33,644 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 38 predicate places. [2024-06-03 21:08:33,644 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 89 transitions, 684 flow [2024-06-03 21:08:33,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:33,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:08:33,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:08:33,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-03 21:08:33,645 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 21:08:33,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:08:33,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1924085692, now seen corresponding path program 3 times [2024-06-03 21:08:33,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:08:33,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538751564] [2024-06-03 21:08:33,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:08:33,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:08:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:08:45,351 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 21:08:45,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:08:45,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538751564] [2024-06-03 21:08:45,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538751564] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:08:45,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:08:45,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:08:45,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820471824] [2024-06-03 21:08:45,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:08:45,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:08:45,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:08:45,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:08:45,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:08:45,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:08:45,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 89 transitions, 684 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:45,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:08:45,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:08:45,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:08:46,958 INFO L124 PetriNetUnfolderBase]: 1650/2534 cut-off events. [2024-06-03 21:08:46,959 INFO L125 PetriNetUnfolderBase]: For 35442/35442 co-relation queries the response was YES. [2024-06-03 21:08:46,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12740 conditions, 2534 events. 1650/2534 cut-off events. For 35442/35442 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12527 event pairs, 542 based on Foata normal form. 4/2535 useless extension candidates. Maximal degree in co-relation 12705. Up to 2184 conditions per place. [2024-06-03 21:08:46,970 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 72 selfloop transitions, 44 changer transitions 0/121 dead transitions. [2024-06-03 21:08:46,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 121 transitions, 1056 flow [2024-06-03 21:08:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:08:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:08:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-06-03 21:08:46,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-03 21:08:46,973 INFO L175 Difference]: Start difference. First operand has 82 places, 89 transitions, 684 flow. Second operand 8 states and 164 transitions. [2024-06-03 21:08:46,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 121 transitions, 1056 flow [2024-06-03 21:08:46,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 121 transitions, 970 flow, removed 32 selfloop flow, removed 3 redundant places. [2024-06-03 21:08:46,995 INFO L231 Difference]: Finished difference. Result has 87 places, 89 transitions, 694 flow [2024-06-03 21:08:46,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=694, PETRI_PLACES=87, PETRI_TRANSITIONS=89} [2024-06-03 21:08:46,996 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 43 predicate places. [2024-06-03 21:08:46,996 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 694 flow [2024-06-03 21:08:46,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:46,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:08:46,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:08:46,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-03 21:08:46,997 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 21:08:46,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:08:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -7635068, now seen corresponding path program 4 times [2024-06-03 21:08:46,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:08:46,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667917885] [2024-06-03 21:08:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:08:46,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:08:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:08:58,589 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 21:08:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:08:58,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667917885] [2024-06-03 21:08:58,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667917885] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:08:58,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:08:58,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:08:58,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417616816] [2024-06-03 21:08:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:08:58,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:08:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:08:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:08:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:08:58,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:08:58,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 694 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:08:58,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:08:58,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:08:58,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:09:00,155 INFO L124 PetriNetUnfolderBase]: 1672/2574 cut-off events. [2024-06-03 21:09:00,155 INFO L125 PetriNetUnfolderBase]: For 39198/39200 co-relation queries the response was YES. [2024-06-03 21:09:00,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13218 conditions, 2574 events. 1672/2574 cut-off events. For 39198/39200 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12841 event pairs, 547 based on Foata normal form. 4/2576 useless extension candidates. Maximal degree in co-relation 13181. Up to 2203 conditions per place. [2024-06-03 21:09:00,169 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 69 selfloop transitions, 47 changer transitions 0/121 dead transitions. [2024-06-03 21:09:00,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 121 transitions, 1114 flow [2024-06-03 21:09:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:09:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:09:00,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-03 21:09:00,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-03 21:09:00,172 INFO L175 Difference]: Start difference. First operand has 87 places, 89 transitions, 694 flow. Second operand 8 states and 161 transitions. [2024-06-03 21:09:00,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 121 transitions, 1114 flow [2024-06-03 21:09:00,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 121 transitions, 1033 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-06-03 21:09:00,188 INFO L231 Difference]: Finished difference. Result has 89 places, 92 transitions, 767 flow [2024-06-03 21:09:00,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=767, PETRI_PLACES=89, PETRI_TRANSITIONS=92} [2024-06-03 21:09:00,189 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 45 predicate places. [2024-06-03 21:09:00,189 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 92 transitions, 767 flow [2024-06-03 21:09:00,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:00,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:09:00,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:09:00,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-03 21:09:00,190 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 21:09:00,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:09:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1584671088, now seen corresponding path program 5 times [2024-06-03 21:09:00,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:09:00,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498244408] [2024-06-03 21:09:00,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:09:00,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:09:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:09:11,171 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 21:09:11,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:09:11,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498244408] [2024-06-03 21:09:11,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498244408] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:09:11,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:09:11,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:09:11,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271656265] [2024-06-03 21:09:11,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:09:11,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:09:11,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:09:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:09:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:09:11,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:09:11,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 92 transitions, 767 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:11,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:09:11,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:09:11,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:09:12,680 INFO L124 PetriNetUnfolderBase]: 1694/2616 cut-off events. [2024-06-03 21:09:12,680 INFO L125 PetriNetUnfolderBase]: For 43799/43801 co-relation queries the response was YES. [2024-06-03 21:09:12,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13670 conditions, 2616 events. 1694/2616 cut-off events. For 43799/43801 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13115 event pairs, 554 based on Foata normal form. 4/2618 useless extension candidates. Maximal degree in co-relation 13632. Up to 2222 conditions per place. [2024-06-03 21:09:12,694 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 66 selfloop transitions, 52 changer transitions 0/123 dead transitions. [2024-06-03 21:09:12,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 123 transitions, 1196 flow [2024-06-03 21:09:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:09:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:09:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-06-03 21:09:12,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4622093023255814 [2024-06-03 21:09:12,697 INFO L175 Difference]: Start difference. First operand has 89 places, 92 transitions, 767 flow. Second operand 8 states and 159 transitions. [2024-06-03 21:09:12,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 123 transitions, 1196 flow [2024-06-03 21:09:12,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 123 transitions, 1018 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-06-03 21:09:12,724 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 756 flow [2024-06-03 21:09:12,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=756, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2024-06-03 21:09:12,724 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 46 predicate places. [2024-06-03 21:09:12,725 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 756 flow [2024-06-03 21:09:12,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:12,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:09:12,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:09:12,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-03 21:09:12,725 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 21:09:12,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:09:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash 38158254, now seen corresponding path program 6 times [2024-06-03 21:09:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:09:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734584189] [2024-06-03 21:09:12,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:09:12,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:09:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:09:24,225 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 21:09:24,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:09:24,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734584189] [2024-06-03 21:09:24,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734584189] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:09:24,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:09:24,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:09:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044224818] [2024-06-03 21:09:24,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:09:24,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:09:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:09:24,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:09:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:09:24,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:09:24,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 756 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:24,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:09:24,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:09:24,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:09:25,719 INFO L124 PetriNetUnfolderBase]: 1684/2602 cut-off events. [2024-06-03 21:09:25,719 INFO L125 PetriNetUnfolderBase]: For 45720/45722 co-relation queries the response was YES. [2024-06-03 21:09:25,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13613 conditions, 2602 events. 1684/2602 cut-off events. For 45720/45722 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 12948 event pairs, 547 based on Foata normal form. 4/2604 useless extension candidates. Maximal degree in co-relation 13574. Up to 2214 conditions per place. [2024-06-03 21:09:25,733 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 68 selfloop transitions, 49 changer transitions 0/122 dead transitions. [2024-06-03 21:09:25,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 122 transitions, 1056 flow [2024-06-03 21:09:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:09:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:09:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2024-06-03 21:09:25,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 21:09:25,735 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 756 flow. Second operand 8 states and 160 transitions. [2024-06-03 21:09:25,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 122 transitions, 1056 flow [2024-06-03 21:09:25,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 122 transitions, 928 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-06-03 21:09:25,767 INFO L231 Difference]: Finished difference. Result has 93 places, 95 transitions, 734 flow [2024-06-03 21:09:25,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=734, PETRI_PLACES=93, PETRI_TRANSITIONS=95} [2024-06-03 21:09:25,767 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 49 predicate places. [2024-06-03 21:09:25,767 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 95 transitions, 734 flow [2024-06-03 21:09:25,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:25,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:09:25,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:09:25,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-03 21:09:25,768 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:09:25,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:09:25,769 INFO L85 PathProgramCache]: Analyzing trace with hash 45786951, now seen corresponding path program 1 times [2024-06-03 21:09:25,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:09:25,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628084339] [2024-06-03 21:09:25,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:09:25,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:09:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:09:35,839 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 21:09:35,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:09:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628084339] [2024-06-03 21:09:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628084339] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:09:35,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:09:35,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:09:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592694866] [2024-06-03 21:09:35,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:09:35,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:09:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:09:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:09:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:09:36,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:09:36,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 95 transitions, 734 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:36,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:09:36,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:09:36,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:09:37,346 INFO L124 PetriNetUnfolderBase]: 1469/2364 cut-off events. [2024-06-03 21:09:37,346 INFO L125 PetriNetUnfolderBase]: For 41318/41318 co-relation queries the response was YES. [2024-06-03 21:09:37,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12064 conditions, 2364 events. 1469/2364 cut-off events. For 41318/41318 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12165 event pairs, 468 based on Foata normal form. 4/2367 useless extension candidates. Maximal degree in co-relation 12024. Up to 2144 conditions per place. [2024-06-03 21:09:37,358 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 102 selfloop transitions, 16 changer transitions 0/124 dead transitions. [2024-06-03 21:09:37,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 124 transitions, 1084 flow [2024-06-03 21:09:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:09:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:09:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-03 21:09:37,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-03 21:09:37,361 INFO L175 Difference]: Start difference. First operand has 93 places, 95 transitions, 734 flow. Second operand 8 states and 155 transitions. [2024-06-03 21:09:37,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 124 transitions, 1084 flow [2024-06-03 21:09:37,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 124 transitions, 944 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-03 21:09:37,388 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 697 flow [2024-06-03 21:09:37,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2024-06-03 21:09:37,388 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 50 predicate places. [2024-06-03 21:09:37,388 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 697 flow [2024-06-03 21:09:37,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:09:37,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:09:37,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:09:37,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-03 21:09:37,389 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:09:37,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:09:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash -433494889, now seen corresponding path program 1 times [2024-06-03 21:09:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:09:37,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66776160] [2024-06-03 21:09:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:09:37,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:09:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:09:50,706 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 21:09:50,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:09:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66776160] [2024-06-03 21:09:50,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66776160] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:09:50,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:09:50,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:09:50,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492187787] [2024-06-03 21:09:50,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:09:50,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:09:50,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:09:50,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:09:50,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:09:50,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-06-03 21:09:50,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 697 flow. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 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 21:09:50,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:09:50,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-06-03 21:09:50,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:09:51,706 INFO L124 PetriNetUnfolderBase]: 1236/2105 cut-off events. [2024-06-03 21:09:51,706 INFO L125 PetriNetUnfolderBase]: For 43381/43383 co-relation queries the response was YES. [2024-06-03 21:09:51,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11174 conditions, 2105 events. 1236/2105 cut-off events. For 43381/43383 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 11522 event pairs, 443 based on Foata normal form. 3/2088 useless extension candidates. Maximal degree in co-relation 11132. Up to 1817 conditions per place. [2024-06-03 21:09:51,720 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 81 selfloop transitions, 11 changer transitions 0/112 dead transitions. [2024-06-03 21:09:51,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 927 flow [2024-06-03 21:09:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:09:51,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:09:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 122 transitions. [2024-06-03 21:09:51,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4728682170542636 [2024-06-03 21:09:51,721 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 697 flow. Second operand 6 states and 122 transitions. [2024-06-03 21:09:51,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 927 flow [2024-06-03 21:09:51,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 870 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-06-03 21:09:51,741 INFO L231 Difference]: Finished difference. Result has 95 places, 103 transitions, 698 flow [2024-06-03 21:09:51,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=698, PETRI_PLACES=95, PETRI_TRANSITIONS=103} [2024-06-03 21:09:51,741 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 51 predicate places. [2024-06-03 21:09:51,741 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 103 transitions, 698 flow [2024-06-03 21:09:51,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 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 21:09:51,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:09:51,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:09:51,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-03 21:09:51,742 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 21:09:51,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:09:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1655084799, now seen corresponding path program 1 times [2024-06-03 21:09:51,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:09:51,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337318467] [2024-06-03 21:09:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:09:51,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:09:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:10:04,499 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 21:10:04,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:10:04,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337318467] [2024-06-03 21:10:04,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337318467] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:10:04,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:10:04,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:10:04,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276706122] [2024-06-03 21:10:04,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:10:04,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:10:04,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:10:04,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:10:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:10:04,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:10:04,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 103 transitions, 698 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:04,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:10:04,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:10:04,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:10:06,112 INFO L124 PetriNetUnfolderBase]: 1712/2650 cut-off events. [2024-06-03 21:10:06,112 INFO L125 PetriNetUnfolderBase]: For 57687/57687 co-relation queries the response was YES. [2024-06-03 21:10:06,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14602 conditions, 2650 events. 1712/2650 cut-off events. For 57687/57687 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13248 event pairs, 392 based on Foata normal form. 4/2653 useless extension candidates. Maximal degree in co-relation 14559. Up to 2428 conditions per place. [2024-06-03 21:10:06,127 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 119 selfloop transitions, 20 changer transitions 0/144 dead transitions. [2024-06-03 21:10:06,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 144 transitions, 1224 flow [2024-06-03 21:10:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:10:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:10:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-03 21:10:06,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-03 21:10:06,130 INFO L175 Difference]: Start difference. First operand has 95 places, 103 transitions, 698 flow. Second operand 9 states and 174 transitions. [2024-06-03 21:10:06,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 144 transitions, 1224 flow [2024-06-03 21:10:06,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 144 transitions, 1188 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-03 21:10:06,161 INFO L231 Difference]: Finished difference. Result has 100 places, 107 transitions, 785 flow [2024-06-03 21:10:06,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=785, PETRI_PLACES=100, PETRI_TRANSITIONS=107} [2024-06-03 21:10:06,162 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 56 predicate places. [2024-06-03 21:10:06,162 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 107 transitions, 785 flow [2024-06-03 21:10:06,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:06,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:10:06,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:10:06,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-03 21:10:06,163 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 21:10:06,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:10:06,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1652227839, now seen corresponding path program 2 times [2024-06-03 21:10:06,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:10:06,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949219503] [2024-06-03 21:10:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:10:06,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:10:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:10:19,000 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 21:10:19,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:10:19,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949219503] [2024-06-03 21:10:19,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949219503] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:10:19,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:10:19,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:10:19,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442559250] [2024-06-03 21:10:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:10:19,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:10:19,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:10:19,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:10:19,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:10:19,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:10:19,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 107 transitions, 785 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:19,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:10:19,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:10:19,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:10:20,533 INFO L124 PetriNetUnfolderBase]: 1704/2638 cut-off events. [2024-06-03 21:10:20,534 INFO L125 PetriNetUnfolderBase]: For 62068/62068 co-relation queries the response was YES. [2024-06-03 21:10:20,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14854 conditions, 2638 events. 1704/2638 cut-off events. For 62068/62068 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 13197 event pairs, 531 based on Foata normal form. 4/2641 useless extension candidates. Maximal degree in co-relation 14810. Up to 2475 conditions per place. [2024-06-03 21:10:20,549 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 116 selfloop transitions, 16 changer transitions 0/137 dead transitions. [2024-06-03 21:10:20,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 137 transitions, 1125 flow [2024-06-03 21:10:20,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:10:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:10:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-03 21:10:20,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-03 21:10:20,551 INFO L175 Difference]: Start difference. First operand has 100 places, 107 transitions, 785 flow. Second operand 8 states and 154 transitions. [2024-06-03 21:10:20,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 137 transitions, 1125 flow [2024-06-03 21:10:20,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 137 transitions, 1045 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-06-03 21:10:20,583 INFO L231 Difference]: Finished difference. Result has 103 places, 107 transitions, 744 flow [2024-06-03 21:10:20,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=744, PETRI_PLACES=103, PETRI_TRANSITIONS=107} [2024-06-03 21:10:20,584 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 59 predicate places. [2024-06-03 21:10:20,584 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 107 transitions, 744 flow [2024-06-03 21:10:20,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:20,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:10:20,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:10:20,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-03 21:10:20,584 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 21:10:20,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:10:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1536936669, now seen corresponding path program 3 times [2024-06-03 21:10:20,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:10:20,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697701672] [2024-06-03 21:10:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:10:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:10:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:10:32,525 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 21:10:32,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:10:32,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697701672] [2024-06-03 21:10:32,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697701672] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:10:32,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:10:32,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:10:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231098793] [2024-06-03 21:10:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:10:32,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:10:32,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:10:32,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:10:32,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:10:32,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:10:32,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 107 transitions, 744 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:32,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:10:32,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:10:32,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:10:33,901 INFO L124 PetriNetUnfolderBase]: 1721/2666 cut-off events. [2024-06-03 21:10:33,902 INFO L125 PetriNetUnfolderBase]: For 67346/67348 co-relation queries the response was YES. [2024-06-03 21:10:33,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15114 conditions, 2666 events. 1721/2666 cut-off events. For 67346/67348 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13373 event pairs, 535 based on Foata normal form. 6/2671 useless extension candidates. Maximal degree in co-relation 15068. Up to 2457 conditions per place. [2024-06-03 21:10:33,916 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 103 selfloop transitions, 28 changer transitions 0/136 dead transitions. [2024-06-03 21:10:33,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 136 transitions, 1114 flow [2024-06-03 21:10:33,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:10:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:10:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-03 21:10:33,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-03 21:10:33,918 INFO L175 Difference]: Start difference. First operand has 103 places, 107 transitions, 744 flow. Second operand 8 states and 155 transitions. [2024-06-03 21:10:33,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 136 transitions, 1114 flow [2024-06-03 21:10:33,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 136 transitions, 1077 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-06-03 21:10:33,949 INFO L231 Difference]: Finished difference. Result has 104 places, 109 transitions, 814 flow [2024-06-03 21:10:33,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=104, PETRI_TRANSITIONS=109} [2024-06-03 21:10:33,949 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 60 predicate places. [2024-06-03 21:10:33,949 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 109 transitions, 814 flow [2024-06-03 21:10:33,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:33,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:10:33,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:10:33,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-03 21:10:33,950 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:10:33,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:10:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1951114961, now seen corresponding path program 1 times [2024-06-03 21:10:33,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:10:33,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837131304] [2024-06-03 21:10:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:10:33,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:10:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:10:46,145 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 21:10:46,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:10:46,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837131304] [2024-06-03 21:10:46,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837131304] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:10:46,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:10:46,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:10:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440390807] [2024-06-03 21:10:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:10:46,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:10:46,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:10:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:10:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:10:46,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:10:46,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 109 transitions, 814 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 21:10:46,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:10:46,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:10:46,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:10:47,247 INFO L124 PetriNetUnfolderBase]: 1450/2369 cut-off events. [2024-06-03 21:10:47,247 INFO L125 PetriNetUnfolderBase]: For 70780/70788 co-relation queries the response was YES. [2024-06-03 21:10:47,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14020 conditions, 2369 events. 1450/2369 cut-off events. For 70780/70788 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 12716 event pairs, 509 based on Foata normal form. 4/2352 useless extension candidates. Maximal degree in co-relation 13973. Up to 2117 conditions per place. [2024-06-03 21:10:47,262 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 92 selfloop transitions, 13 changer transitions 0/127 dead transitions. [2024-06-03 21:10:47,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 127 transitions, 1090 flow [2024-06-03 21:10:47,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:10:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:10:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2024-06-03 21:10:47,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-03 21:10:47,263 INFO L175 Difference]: Start difference. First operand has 104 places, 109 transitions, 814 flow. Second operand 6 states and 123 transitions. [2024-06-03 21:10:47,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 127 transitions, 1090 flow [2024-06-03 21:10:47,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 127 transitions, 1001 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-06-03 21:10:47,294 INFO L231 Difference]: Finished difference. Result has 104 places, 112 transitions, 792 flow [2024-06-03 21:10:47,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=104, PETRI_TRANSITIONS=112} [2024-06-03 21:10:47,294 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 60 predicate places. [2024-06-03 21:10:47,294 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 112 transitions, 792 flow [2024-06-03 21:10:47,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 21:10:47,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:10:47,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:10:47,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-03 21:10:47,295 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 21:10:47,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:10:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1529224891, now seen corresponding path program 4 times [2024-06-03 21:10:47,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:10:47,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009953954] [2024-06-03 21:10:47,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:10:47,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:10:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:10:58,967 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 21:10:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:10:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009953954] [2024-06-03 21:10:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009953954] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:10:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:10:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:10:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070146469] [2024-06-03 21:10:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:10:58,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:10:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:10:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:10:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:10:59,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:10:59,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 112 transitions, 792 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:10:59,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:10:59,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:10:59,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:11:00,437 INFO L124 PetriNetUnfolderBase]: 1723/2669 cut-off events. [2024-06-03 21:11:00,437 INFO L125 PetriNetUnfolderBase]: For 76378/76378 co-relation queries the response was YES. [2024-06-03 21:11:00,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15732 conditions, 2669 events. 1723/2669 cut-off events. For 76378/76378 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13386 event pairs, 528 based on Foata normal form. 4/2672 useless extension candidates. Maximal degree in co-relation 15684. Up to 2459 conditions per place. [2024-06-03 21:11:00,453 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 115 selfloop transitions, 29 changer transitions 0/149 dead transitions. [2024-06-03 21:11:00,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 149 transitions, 1212 flow [2024-06-03 21:11:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-03 21:11:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-03 21:11:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2024-06-03 21:11:00,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43488372093023253 [2024-06-03 21:11:00,456 INFO L175 Difference]: Start difference. First operand has 104 places, 112 transitions, 792 flow. Second operand 10 states and 187 transitions. [2024-06-03 21:11:00,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 149 transitions, 1212 flow [2024-06-03 21:11:00,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 149 transitions, 1169 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-06-03 21:11:00,525 INFO L231 Difference]: Finished difference. Result has 110 places, 114 transitions, 862 flow [2024-06-03 21:11:00,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=862, PETRI_PLACES=110, PETRI_TRANSITIONS=114} [2024-06-03 21:11:00,526 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 66 predicate places. [2024-06-03 21:11:00,526 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 114 transitions, 862 flow [2024-06-03 21:11:00,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:00,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:11:00,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:11:00,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-03 21:11:00,527 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:11:00,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:11:00,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1935769201, now seen corresponding path program 2 times [2024-06-03 21:11:00,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:11:00,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572213422] [2024-06-03 21:11:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:11:00,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:11:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:11:12,228 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 21:11:12,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:11:12,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572213422] [2024-06-03 21:11:12,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572213422] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:11:12,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:11:12,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:11:12,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214895697] [2024-06-03 21:11:12,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:11:12,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:11:12,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:11:12,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:11:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:11:12,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:11:12,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 114 transitions, 862 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 21:11:12,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:11:12,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:11:12,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:11:13,273 INFO L124 PetriNetUnfolderBase]: 1439/2341 cut-off events. [2024-06-03 21:11:13,273 INFO L125 PetriNetUnfolderBase]: For 78850/78852 co-relation queries the response was YES. [2024-06-03 21:11:13,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14427 conditions, 2341 events. 1439/2341 cut-off events. For 78850/78852 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 12516 event pairs, 514 based on Foata normal form. 3/2322 useless extension candidates. Maximal degree in co-relation 14378. Up to 2099 conditions per place. [2024-06-03 21:11:13,288 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 85 selfloop transitions, 18 changer transitions 0/126 dead transitions. [2024-06-03 21:11:13,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 126 transitions, 1124 flow [2024-06-03 21:11:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:11:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:11:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2024-06-03 21:11:13,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46124031007751937 [2024-06-03 21:11:13,290 INFO L175 Difference]: Start difference. First operand has 110 places, 114 transitions, 862 flow. Second operand 6 states and 119 transitions. [2024-06-03 21:11:13,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 126 transitions, 1124 flow [2024-06-03 21:11:13,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 126 transitions, 1029 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-06-03 21:11:13,322 INFO L231 Difference]: Finished difference. Result has 108 places, 117 transitions, 849 flow [2024-06-03 21:11:13,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=849, PETRI_PLACES=108, PETRI_TRANSITIONS=117} [2024-06-03 21:11:13,323 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 64 predicate places. [2024-06-03 21:11:13,323 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 117 transitions, 849 flow [2024-06-03 21:11:13,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 21:11:13,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:11:13,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:11:13,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-03 21:11:13,324 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:11:13,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:11:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash 324657317, now seen corresponding path program 1 times [2024-06-03 21:11:13,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:11:13,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144792704] [2024-06-03 21:11:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:11:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:11:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:11:24,694 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 21:11:24,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:11:24,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144792704] [2024-06-03 21:11:24,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144792704] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:11:24,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:11:24,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:11:24,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266306356] [2024-06-03 21:11:24,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:11:24,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:11:24,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:11:24,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:11:24,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:11:24,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:11:24,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 117 transitions, 849 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:24,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:11:24,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:11:24,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:11:25,775 INFO L124 PetriNetUnfolderBase]: 1518/2447 cut-off events. [2024-06-03 21:11:25,775 INFO L125 PetriNetUnfolderBase]: For 72190/72190 co-relation queries the response was YES. [2024-06-03 21:11:25,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14520 conditions, 2447 events. 1518/2447 cut-off events. For 72190/72190 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 12653 event pairs, 446 based on Foata normal form. 1/2447 useless extension candidates. Maximal degree in co-relation 14470. Up to 2255 conditions per place. [2024-06-03 21:11:25,788 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 115 selfloop transitions, 11 changer transitions 0/132 dead transitions. [2024-06-03 21:11:25,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 132 transitions, 1169 flow [2024-06-03 21:11:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:11:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:11:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-06-03 21:11:25,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573643410852715 [2024-06-03 21:11:25,789 INFO L175 Difference]: Start difference. First operand has 108 places, 117 transitions, 849 flow. Second operand 6 states and 115 transitions. [2024-06-03 21:11:25,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 132 transitions, 1169 flow [2024-06-03 21:11:25,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 132 transitions, 1109 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-06-03 21:11:25,825 INFO L231 Difference]: Finished difference. Result has 110 places, 120 transitions, 861 flow [2024-06-03 21:11:25,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=861, PETRI_PLACES=110, PETRI_TRANSITIONS=120} [2024-06-03 21:11:25,826 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 66 predicate places. [2024-06-03 21:11:25,826 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 120 transitions, 861 flow [2024-06-03 21:11:25,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:25,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:11:25,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:11:25,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-03 21:11:25,827 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:11:25,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:11:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash -553447349, now seen corresponding path program 2 times [2024-06-03 21:11:25,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:11:25,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132685389] [2024-06-03 21:11:25,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:11:25,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:11:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:11:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:11:37,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:11:37,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132685389] [2024-06-03 21:11:37,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132685389] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:11:37,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:11:37,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-03 21:11:37,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319097118] [2024-06-03 21:11:37,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:11:37,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-03 21:11:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:11:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-03 21:11:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-03 21:11:37,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:11:37,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 120 transitions, 861 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:37,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:11:37,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:11:37,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:11:38,775 INFO L124 PetriNetUnfolderBase]: 1515/2444 cut-off events. [2024-06-03 21:11:38,776 INFO L125 PetriNetUnfolderBase]: For 75708/75710 co-relation queries the response was YES. [2024-06-03 21:11:38,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14806 conditions, 2444 events. 1515/2444 cut-off events. For 75708/75710 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 12676 event pairs, 450 based on Foata normal form. 3/2446 useless extension candidates. Maximal degree in co-relation 14755. Up to 2245 conditions per place. [2024-06-03 21:11:38,789 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 110 selfloop transitions, 16 changer transitions 0/132 dead transitions. [2024-06-03 21:11:38,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 132 transitions, 1179 flow [2024-06-03 21:11:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:11:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:11:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2024-06-03 21:11:38,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 21:11:38,790 INFO L175 Difference]: Start difference. First operand has 110 places, 120 transitions, 861 flow. Second operand 6 states and 114 transitions. [2024-06-03 21:11:38,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 132 transitions, 1179 flow [2024-06-03 21:11:38,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 132 transitions, 1129 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-03 21:11:38,835 INFO L231 Difference]: Finished difference. Result has 112 places, 123 transitions, 899 flow [2024-06-03 21:11:38,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=899, PETRI_PLACES=112, PETRI_TRANSITIONS=123} [2024-06-03 21:11:38,836 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 68 predicate places. [2024-06-03 21:11:38,836 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 123 transitions, 899 flow [2024-06-03 21:11:38,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:38,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:11:38,836 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 21:11:38,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-03 21:11:38,837 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 21:11:38,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:11:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1437598675, now seen corresponding path program 1 times [2024-06-03 21:11:38,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:11:38,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883425979] [2024-06-03 21:11:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:11:38,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:11:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:11:51,302 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 21:11:51,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:11:51,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883425979] [2024-06-03 21:11:51,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883425979] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:11:51,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:11:51,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:11:51,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763872028] [2024-06-03 21:11:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:11:51,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:11:51,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:11:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:11:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:11:51,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:11:51,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 123 transitions, 899 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:51,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:11:51,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:11:51,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:11:53,134 INFO L124 PetriNetUnfolderBase]: 1888/2949 cut-off events. [2024-06-03 21:11:53,134 INFO L125 PetriNetUnfolderBase]: For 115627/115627 co-relation queries the response was YES. [2024-06-03 21:11:53,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19189 conditions, 2949 events. 1888/2949 cut-off events. For 115627/115627 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 15247 event pairs, 431 based on Foata normal form. 16/2964 useless extension candidates. Maximal degree in co-relation 19137. Up to 2439 conditions per place. [2024-06-03 21:11:53,152 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 147 selfloop transitions, 23 changer transitions 0/175 dead transitions. [2024-06-03 21:11:53,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 175 transitions, 1567 flow [2024-06-03 21:11:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-03 21:11:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-03 21:11:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2024-06-03 21:11:53,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4627906976744186 [2024-06-03 21:11:53,154 INFO L175 Difference]: Start difference. First operand has 112 places, 123 transitions, 899 flow. Second operand 10 states and 199 transitions. [2024-06-03 21:11:53,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 175 transitions, 1567 flow [2024-06-03 21:11:53,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 175 transitions, 1501 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-03 21:11:53,194 INFO L231 Difference]: Finished difference. Result has 118 places, 125 transitions, 951 flow [2024-06-03 21:11:53,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=951, PETRI_PLACES=118, PETRI_TRANSITIONS=125} [2024-06-03 21:11:53,194 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 74 predicate places. [2024-06-03 21:11:53,195 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 125 transitions, 951 flow [2024-06-03 21:11:53,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:11:53,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:11:53,195 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 21:11:53,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-03 21:11:53,195 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:11:53,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:11:53,196 INFO L85 PathProgramCache]: Analyzing trace with hash 320693955, now seen corresponding path program 2 times [2024-06-03 21:11:53,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:11:53,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323366573] [2024-06-03 21:11:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:11:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:11:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:12:06,009 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 21:12:06,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:12:06,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323366573] [2024-06-03 21:12:06,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323366573] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:12:06,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:12:06,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:12:06,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577888798] [2024-06-03 21:12:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:12:06,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:12:06,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:12:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:12:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:12:06,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:12:06,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 125 transitions, 951 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:06,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:12:06,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:12:06,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:12:07,718 INFO L124 PetriNetUnfolderBase]: 1938/3041 cut-off events. [2024-06-03 21:12:07,718 INFO L125 PetriNetUnfolderBase]: For 123428/123428 co-relation queries the response was YES. [2024-06-03 21:12:07,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19861 conditions, 3041 events. 1938/3041 cut-off events. For 123428/123428 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 15963 event pairs, 598 based on Foata normal form. 20/3060 useless extension candidates. Maximal degree in co-relation 19808. Up to 2744 conditions per place. [2024-06-03 21:12:07,736 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 142 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2024-06-03 21:12:07,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 165 transitions, 1427 flow [2024-06-03 21:12:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:12:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:12:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 175 transitions. [2024-06-03 21:12:07,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45219638242894056 [2024-06-03 21:12:07,738 INFO L175 Difference]: Start difference. First operand has 118 places, 125 transitions, 951 flow. Second operand 9 states and 175 transitions. [2024-06-03 21:12:07,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 165 transitions, 1427 flow [2024-06-03 21:12:07,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 165 transitions, 1378 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-06-03 21:12:07,793 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 981 flow [2024-06-03 21:12:07,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=981, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2024-06-03 21:12:07,794 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 77 predicate places. [2024-06-03 21:12:07,794 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 981 flow [2024-06-03 21:12:07,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:07,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:12:07,795 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 21:12:07,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-03 21:12:07,795 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 21:12:07,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:12:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1526164435, now seen corresponding path program 3 times [2024-06-03 21:12:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:12:07,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577110907] [2024-06-03 21:12:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:12:07,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:12:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:12:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:12:20,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:12:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577110907] [2024-06-03 21:12:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577110907] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:12:20,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:12:20,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:12:20,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329516186] [2024-06-03 21:12:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:12:20,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:12:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:12:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:12:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:12:21,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:12:21,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 981 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:21,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:12:21,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:12:21,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:12:22,661 INFO L124 PetriNetUnfolderBase]: 1910/2997 cut-off events. [2024-06-03 21:12:22,661 INFO L125 PetriNetUnfolderBase]: For 121762/121762 co-relation queries the response was YES. [2024-06-03 21:12:22,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19266 conditions, 2997 events. 1910/2997 cut-off events. For 121762/121762 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 15645 event pairs, 558 based on Foata normal form. 16/3012 useless extension candidates. Maximal degree in co-relation 19211. Up to 2590 conditions per place. [2024-06-03 21:12:22,680 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 144 selfloop transitions, 20 changer transitions 0/169 dead transitions. [2024-06-03 21:12:22,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 169 transitions, 1449 flow [2024-06-03 21:12:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:12:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:12:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-03 21:12:22,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625322997416021 [2024-06-03 21:12:22,683 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 981 flow. Second operand 9 states and 179 transitions. [2024-06-03 21:12:22,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 169 transitions, 1449 flow [2024-06-03 21:12:22,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 169 transitions, 1392 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-06-03 21:12:22,739 INFO L231 Difference]: Finished difference. Result has 123 places, 126 transitions, 970 flow [2024-06-03 21:12:22,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=970, PETRI_PLACES=123, PETRI_TRANSITIONS=126} [2024-06-03 21:12:22,740 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 79 predicate places. [2024-06-03 21:12:22,740 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 126 transitions, 970 flow [2024-06-03 21:12:22,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:22,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:12:22,740 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 21:12:22,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-03 21:12:22,740 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 21:12:22,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:12:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -400247071, now seen corresponding path program 4 times [2024-06-03 21:12:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:12:22,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603956184] [2024-06-03 21:12:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:12:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:12:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:12:35,211 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 21:12:35,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:12:35,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603956184] [2024-06-03 21:12:35,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603956184] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:12:35,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:12:35,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:12:35,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355636011] [2024-06-03 21:12:35,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:12:35,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:12:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:12:35,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:12:35,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:12:35,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:12:35,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 126 transitions, 970 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:35,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:12:35,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:12:35,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:12:37,106 INFO L124 PetriNetUnfolderBase]: 1985/3131 cut-off events. [2024-06-03 21:12:37,106 INFO L125 PetriNetUnfolderBase]: For 130364/130366 co-relation queries the response was YES. [2024-06-03 21:12:37,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20020 conditions, 3131 events. 1985/3131 cut-off events. For 130364/130366 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 16701 event pairs, 547 based on Foata normal form. 20/3149 useless extension candidates. Maximal degree in co-relation 19964. Up to 2598 conditions per place. [2024-06-03 21:12:37,128 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 109 selfloop transitions, 52 changer transitions 0/166 dead transitions. [2024-06-03 21:12:37,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 166 transitions, 1452 flow [2024-06-03 21:12:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:12:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:12:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-06-03 21:12:37,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754521963824289 [2024-06-03 21:12:37,131 INFO L175 Difference]: Start difference. First operand has 123 places, 126 transitions, 970 flow. Second operand 9 states and 184 transitions. [2024-06-03 21:12:37,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 166 transitions, 1452 flow [2024-06-03 21:12:37,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 166 transitions, 1393 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-06-03 21:12:37,192 INFO L231 Difference]: Finished difference. Result has 124 places, 127 transitions, 1058 flow [2024-06-03 21:12:37,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1058, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2024-06-03 21:12:37,193 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 80 predicate places. [2024-06-03 21:12:37,193 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 1058 flow [2024-06-03 21:12:37,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:37,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:12:37,193 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 21:12:37,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-03 21:12:37,193 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 21:12:37,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:12:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash -400394941, now seen corresponding path program 5 times [2024-06-03 21:12:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:12:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335869841] [2024-06-03 21:12:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:12:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:12:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:12:49,800 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 21:12:49,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:12:49,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335869841] [2024-06-03 21:12:49,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335869841] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:12:49,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:12:49,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:12:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936745571] [2024-06-03 21:12:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:12:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:12:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:12:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:12:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:12:50,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:12:50,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 1058 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:50,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:12:50,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:12:50,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:12:51,610 INFO L124 PetriNetUnfolderBase]: 2154/3420 cut-off events. [2024-06-03 21:12:51,610 INFO L125 PetriNetUnfolderBase]: For 150059/150061 co-relation queries the response was YES. [2024-06-03 21:12:51,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22528 conditions, 3420 events. 2154/3420 cut-off events. For 150059/150061 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 18873 event pairs, 570 based on Foata normal form. 16/3434 useless extension candidates. Maximal degree in co-relation 22471. Up to 2601 conditions per place. [2024-06-03 21:12:51,634 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 113 selfloop transitions, 55 changer transitions 0/173 dead transitions. [2024-06-03 21:12:51,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 173 transitions, 1734 flow [2024-06-03 21:12:51,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:12:51,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:12:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2024-06-03 21:12:51,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48578811369509045 [2024-06-03 21:12:51,637 INFO L175 Difference]: Start difference. First operand has 124 places, 127 transitions, 1058 flow. Second operand 9 states and 188 transitions. [2024-06-03 21:12:51,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 173 transitions, 1734 flow [2024-06-03 21:12:51,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 173 transitions, 1615 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-06-03 21:12:51,760 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 1129 flow [2024-06-03 21:12:51,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1129, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2024-06-03 21:12:51,760 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 82 predicate places. [2024-06-03 21:12:51,760 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 1129 flow [2024-06-03 21:12:51,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:12:51,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:12:51,761 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 21:12:51,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-03 21:12:51,761 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 21:12:51,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:12:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash -394884691, now seen corresponding path program 6 times [2024-06-03 21:12:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:12:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260986117] [2024-06-03 21:12:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:12:51,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:12:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:13:04,471 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 21:13:04,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:13:04,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260986117] [2024-06-03 21:13:04,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260986117] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:13:04,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:13:04,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:13:04,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119087826] [2024-06-03 21:13:04,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:13:04,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:13:04,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:13:04,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:13:04,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:13:04,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:13:04,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 1129 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:04,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:13:04,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:13:04,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:13:06,393 INFO L124 PetriNetUnfolderBase]: 2118/3364 cut-off events. [2024-06-03 21:13:06,393 INFO L125 PetriNetUnfolderBase]: For 148264/148266 co-relation queries the response was YES. [2024-06-03 21:13:06,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21709 conditions, 3364 events. 2118/3364 cut-off events. For 148264/148266 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 18452 event pairs, 572 based on Foata normal form. 20/3382 useless extension candidates. Maximal degree in co-relation 21651. Up to 2821 conditions per place. [2024-06-03 21:13:06,413 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 109 selfloop transitions, 53 changer transitions 0/167 dead transitions. [2024-06-03 21:13:06,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 167 transitions, 1575 flow [2024-06-03 21:13:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:13:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:13:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2024-06-03 21:13:06,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4702842377260982 [2024-06-03 21:13:06,416 INFO L175 Difference]: Start difference. First operand has 126 places, 129 transitions, 1129 flow. Second operand 9 states and 182 transitions. [2024-06-03 21:13:06,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 167 transitions, 1575 flow [2024-06-03 21:13:06,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 167 transitions, 1474 flow, removed 21 selfloop flow, removed 5 redundant places. [2024-06-03 21:13:06,481 INFO L231 Difference]: Finished difference. Result has 130 places, 129 transitions, 1141 flow [2024-06-03 21:13:06,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1141, PETRI_PLACES=130, PETRI_TRANSITIONS=129} [2024-06-03 21:13:06,482 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 86 predicate places. [2024-06-03 21:13:06,482 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 129 transitions, 1141 flow [2024-06-03 21:13:06,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:06,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:13:06,482 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 21:13:06,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-03 21:13:06,482 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 21:13:06,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:13:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash -394669210, now seen corresponding path program 1 times [2024-06-03 21:13:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:13:06,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503681691] [2024-06-03 21:13:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:13:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:13:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:13:16,774 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 21:13:16,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:13:16,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503681691] [2024-06-03 21:13:16,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503681691] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:13:16,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:13:16,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:13:16,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075354913] [2024-06-03 21:13:16,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:13:16,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:13:16,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:13:16,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:13:16,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:13:17,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:13:17,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 129 transitions, 1141 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:17,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:13:17,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:13:17,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:13:18,636 INFO L124 PetriNetUnfolderBase]: 2135/3406 cut-off events. [2024-06-03 21:13:18,636 INFO L125 PetriNetUnfolderBase]: For 144559/144561 co-relation queries the response was YES. [2024-06-03 21:13:18,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21947 conditions, 3406 events. 2135/3406 cut-off events. For 144559/144561 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 18898 event pairs, 611 based on Foata normal form. 4/3408 useless extension candidates. Maximal degree in co-relation 21887. Up to 3115 conditions per place. [2024-06-03 21:13:18,662 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 128 selfloop transitions, 33 changer transitions 0/166 dead transitions. [2024-06-03 21:13:18,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 166 transitions, 1611 flow [2024-06-03 21:13:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:13:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:13:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-03 21:13:18,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-03 21:13:18,665 INFO L175 Difference]: Start difference. First operand has 130 places, 129 transitions, 1141 flow. Second operand 9 states and 174 transitions. [2024-06-03 21:13:18,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 166 transitions, 1611 flow [2024-06-03 21:13:18,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 166 transitions, 1491 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-06-03 21:13:18,735 INFO L231 Difference]: Finished difference. Result has 132 places, 134 transitions, 1170 flow [2024-06-03 21:13:18,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1170, PETRI_PLACES=132, PETRI_TRANSITIONS=134} [2024-06-03 21:13:18,735 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 88 predicate places. [2024-06-03 21:13:18,736 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 134 transitions, 1170 flow [2024-06-03 21:13:18,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:18,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:13:18,736 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 21:13:18,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-03 21:13:18,736 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 21:13:18,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:13:18,737 INFO L85 PathProgramCache]: Analyzing trace with hash 9931062, now seen corresponding path program 1 times [2024-06-03 21:13:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:13:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122825037] [2024-06-03 21:13:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:13:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:13:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:13:31,530 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 21:13:31,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:13:31,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122825037] [2024-06-03 21:13:31,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122825037] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:13:31,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:13:31,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:13:31,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517784502] [2024-06-03 21:13:31,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:13:31,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:13:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:13:31,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:13:31,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:13:31,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:13:31,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 134 transitions, 1170 flow. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:13:31,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:13:31,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:13:31,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:13:32,880 INFO L124 PetriNetUnfolderBase]: 1891/3119 cut-off events. [2024-06-03 21:13:32,880 INFO L125 PetriNetUnfolderBase]: For 148146/148152 co-relation queries the response was YES. [2024-06-03 21:13:32,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20846 conditions, 3119 events. 1891/3119 cut-off events. For 148146/148152 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17966 event pairs, 585 based on Foata normal form. 4/3076 useless extension candidates. Maximal degree in co-relation 20784. Up to 2762 conditions per place. [2024-06-03 21:13:32,905 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 110 selfloop transitions, 16 changer transitions 0/153 dead transitions. [2024-06-03 21:13:32,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 1496 flow [2024-06-03 21:13:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:13:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:13:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2024-06-03 21:13:32,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46179401993355484 [2024-06-03 21:13:32,906 INFO L175 Difference]: Start difference. First operand has 132 places, 134 transitions, 1170 flow. Second operand 7 states and 139 transitions. [2024-06-03 21:13:32,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 1496 flow [2024-06-03 21:13:32,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 153 transitions, 1393 flow, removed 21 selfloop flow, removed 6 redundant places. [2024-06-03 21:13:32,970 INFO L231 Difference]: Finished difference. Result has 133 places, 137 transitions, 1145 flow [2024-06-03 21:13:32,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1067, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1145, PETRI_PLACES=133, PETRI_TRANSITIONS=137} [2024-06-03 21:13:32,970 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 89 predicate places. [2024-06-03 21:13:32,971 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 137 transitions, 1145 flow [2024-06-03 21:13:32,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:13:32,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:13:32,971 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 21:13:32,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-03 21:13:32,971 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:13:32,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:13:32,971 INFO L85 PathProgramCache]: Analyzing trace with hash 360782567, now seen corresponding path program 7 times [2024-06-03 21:13:32,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:13:32,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283887362] [2024-06-03 21:13:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:13:32,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:13:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:13:45,498 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 21:13:45,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:13:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283887362] [2024-06-03 21:13:45,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283887362] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:13:45,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:13:45,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:13:45,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984564592] [2024-06-03 21:13:45,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:13:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:13:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:13:45,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:13:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:13:45,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:13:45,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 137 transitions, 1145 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:45,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:13:45,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:13:45,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:13:47,345 INFO L124 PetriNetUnfolderBase]: 2220/3528 cut-off events. [2024-06-03 21:13:47,345 INFO L125 PetriNetUnfolderBase]: For 169677/169679 co-relation queries the response was YES. [2024-06-03 21:13:47,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23536 conditions, 3528 events. 2220/3528 cut-off events. For 169677/169679 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 19538 event pairs, 574 based on Foata normal form. 20/3546 useless extension candidates. Maximal degree in co-relation 23473. Up to 2987 conditions per place. [2024-06-03 21:13:47,371 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 112 selfloop transitions, 56 changer transitions 0/173 dead transitions. [2024-06-03 21:13:47,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 173 transitions, 1645 flow [2024-06-03 21:13:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:13:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:13:47,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-06-03 21:13:47,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-03 21:13:47,374 INFO L175 Difference]: Start difference. First operand has 133 places, 137 transitions, 1145 flow. Second operand 9 states and 177 transitions. [2024-06-03 21:13:47,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 173 transitions, 1645 flow [2024-06-03 21:13:47,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 173 transitions, 1589 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-03 21:13:47,465 INFO L231 Difference]: Finished difference. Result has 137 places, 138 transitions, 1250 flow [2024-06-03 21:13:47,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1250, PETRI_PLACES=137, PETRI_TRANSITIONS=138} [2024-06-03 21:13:47,466 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 93 predicate places. [2024-06-03 21:13:47,466 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 138 transitions, 1250 flow [2024-06-03 21:13:47,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:47,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:13:47,466 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 21:13:47,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-03 21:13:47,467 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:13:47,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:13:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1991712521, now seen corresponding path program 8 times [2024-06-03 21:13:47,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:13:47,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547090333] [2024-06-03 21:13:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:13:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:13:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:13:55,000 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 21:13:55,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:13:55,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547090333] [2024-06-03 21:13:55,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547090333] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:13:55,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:13:55,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:13:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353237936] [2024-06-03 21:13:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:13:55,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:13:55,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:13:55,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:13:55,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:13:55,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:13:55,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 138 transitions, 1250 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:55,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:13:55,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:13:55,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:13:56,987 INFO L124 PetriNetUnfolderBase]: 2295/3658 cut-off events. [2024-06-03 21:13:56,987 INFO L125 PetriNetUnfolderBase]: For 182795/182797 co-relation queries the response was YES. [2024-06-03 21:13:57,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24787 conditions, 3658 events. 2295/3658 cut-off events. For 182795/182797 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 20479 event pairs, 593 based on Foata normal form. 20/3676 useless extension candidates. Maximal degree in co-relation 24723. Up to 3112 conditions per place. [2024-06-03 21:13:57,012 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 116 selfloop transitions, 54 changer transitions 0/175 dead transitions. [2024-06-03 21:13:57,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 175 transitions, 1762 flow [2024-06-03 21:13:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:13:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:13:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-03 21:13:57,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625322997416021 [2024-06-03 21:13:57,015 INFO L175 Difference]: Start difference. First operand has 137 places, 138 transitions, 1250 flow. Second operand 9 states and 179 transitions. [2024-06-03 21:13:57,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 175 transitions, 1762 flow [2024-06-03 21:13:57,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 175 transitions, 1629 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-06-03 21:13:57,122 INFO L231 Difference]: Finished difference. Result has 139 places, 139 transitions, 1276 flow [2024-06-03 21:13:57,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1276, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2024-06-03 21:13:57,123 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 95 predicate places. [2024-06-03 21:13:57,123 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 1276 flow [2024-06-03 21:13:57,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:13:57,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:13:57,123 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 21:13:57,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-03 21:13:57,124 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:13:57,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:13:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 161332907, now seen corresponding path program 9 times [2024-06-03 21:13:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:13:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757368095] [2024-06-03 21:13:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:13:57,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:13:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:14:09,733 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 21:14:09,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:14:09,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757368095] [2024-06-03 21:14:09,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757368095] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:14:09,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:14:09,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:14:09,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877001173] [2024-06-03 21:14:09,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:14:09,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:14:09,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:14:09,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:14:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:14:09,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:14:09,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 1276 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:09,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:14:09,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:14:09,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:14:11,687 INFO L124 PetriNetUnfolderBase]: 2414/3865 cut-off events. [2024-06-03 21:14:11,688 INFO L125 PetriNetUnfolderBase]: For 200336/200336 co-relation queries the response was YES. [2024-06-03 21:14:11,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26572 conditions, 3865 events. 2414/3865 cut-off events. For 200336/200336 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 21997 event pairs, 589 based on Foata normal form. 16/3880 useless extension candidates. Maximal degree in co-relation 26507. Up to 2917 conditions per place. [2024-06-03 21:14:11,716 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 129 selfloop transitions, 59 changer transitions 0/193 dead transitions. [2024-06-03 21:14:11,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 193 transitions, 2062 flow [2024-06-03 21:14:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-03 21:14:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-03 21:14:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 220 transitions. [2024-06-03 21:14:11,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 21:14:11,717 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 1276 flow. Second operand 11 states and 220 transitions. [2024-06-03 21:14:11,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 193 transitions, 2062 flow [2024-06-03 21:14:11,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 193 transitions, 1931 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-06-03 21:14:11,827 INFO L231 Difference]: Finished difference. Result has 143 places, 141 transitions, 1359 flow [2024-06-03 21:14:11,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1145, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1359, PETRI_PLACES=143, PETRI_TRANSITIONS=141} [2024-06-03 21:14:11,828 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 99 predicate places. [2024-06-03 21:14:11,828 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 141 transitions, 1359 flow [2024-06-03 21:14:11,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:11,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:14:11,828 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 21:14:11,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-03 21:14:11,828 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 21:14:11,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:14:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash 166843157, now seen corresponding path program 10 times [2024-06-03 21:14:11,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:14:11,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719180581] [2024-06-03 21:14:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:14:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:14:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:14:24,196 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 21:14:24,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:14:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719180581] [2024-06-03 21:14:24,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719180581] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:14:24,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:14:24,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:14:24,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605000815] [2024-06-03 21:14:24,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:14:24,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:14:24,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:14:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:14:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:14:24,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:14:24,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 141 transitions, 1359 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:24,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:14:24,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:14:24,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:14:26,276 INFO L124 PetriNetUnfolderBase]: 2378/3803 cut-off events. [2024-06-03 21:14:26,276 INFO L125 PetriNetUnfolderBase]: For 195320/195322 co-relation queries the response was YES. [2024-06-03 21:14:26,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25517 conditions, 3803 events. 2378/3803 cut-off events. For 195320/195322 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 21616 event pairs, 605 based on Foata normal form. 20/3821 useless extension candidates. Maximal degree in co-relation 25451. Up to 3257 conditions per place. [2024-06-03 21:14:26,302 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 119 selfloop transitions, 53 changer transitions 0/177 dead transitions. [2024-06-03 21:14:26,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 177 transitions, 1833 flow [2024-06-03 21:14:26,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:14:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:14:26,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2024-06-03 21:14:26,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-03 21:14:26,307 INFO L175 Difference]: Start difference. First operand has 143 places, 141 transitions, 1359 flow. Second operand 9 states and 180 transitions. [2024-06-03 21:14:26,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 177 transitions, 1833 flow [2024-06-03 21:14:26,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 177 transitions, 1713 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-06-03 21:14:26,449 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 1352 flow [2024-06-03 21:14:26,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1239, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1352, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2024-06-03 21:14:26,449 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 101 predicate places. [2024-06-03 21:14:26,449 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 1352 flow [2024-06-03 21:14:26,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:26,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:14:26,450 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 21:14:26,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-03 21:14:26,450 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 21:14:26,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:14:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1101439794, now seen corresponding path program 2 times [2024-06-03 21:14:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:14:26,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573725989] [2024-06-03 21:14:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:14:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:14:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:14:36,864 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 21:14:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:14:36,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573725989] [2024-06-03 21:14:36,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573725989] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:14:36,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:14:36,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:14:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637688790] [2024-06-03 21:14:36,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:14:36,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:14:36,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:14:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:14:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:14:37,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:14:37,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 1352 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:37,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:14:37,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:14:37,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:14:38,839 INFO L124 PetriNetUnfolderBase]: 2406/3874 cut-off events. [2024-06-03 21:14:38,839 INFO L125 PetriNetUnfolderBase]: For 186422/186426 co-relation queries the response was YES. [2024-06-03 21:14:38,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25730 conditions, 3874 events. 2406/3874 cut-off events. For 186422/186426 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 22288 event pairs, 661 based on Foata normal form. 8/3881 useless extension candidates. Maximal degree in co-relation 25662. Up to 3563 conditions per place. [2024-06-03 21:14:38,865 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 132 selfloop transitions, 42 changer transitions 0/179 dead transitions. [2024-06-03 21:14:38,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 179 transitions, 1893 flow [2024-06-03 21:14:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:14:38,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:14:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2024-06-03 21:14:38,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43669250645994834 [2024-06-03 21:14:38,868 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 1352 flow. Second operand 9 states and 169 transitions. [2024-06-03 21:14:38,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 179 transitions, 1893 flow [2024-06-03 21:14:38,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 179 transitions, 1762 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-03 21:14:38,997 INFO L231 Difference]: Finished difference. Result has 147 places, 151 transitions, 1454 flow [2024-06-03 21:14:38,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1454, PETRI_PLACES=147, PETRI_TRANSITIONS=151} [2024-06-03 21:14:38,998 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 103 predicate places. [2024-06-03 21:14:38,998 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 151 transitions, 1454 flow [2024-06-03 21:14:38,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:38,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:14:38,998 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 21:14:38,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-03 21:14:38,998 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 21:14:38,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:14:38,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1091916594, now seen corresponding path program 3 times [2024-06-03 21:14:38,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:14:38,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783873309] [2024-06-03 21:14:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:14:38,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:14:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:14:49,132 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 21:14:49,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:14:49,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783873309] [2024-06-03 21:14:49,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783873309] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:14:49,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:14:49,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:14:49,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645133586] [2024-06-03 21:14:49,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:14:49,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:14:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:14:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:14:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:14:49,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:14:49,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 151 transitions, 1454 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:49,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:14:49,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:14:49,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:14:51,212 INFO L124 PetriNetUnfolderBase]: 2423/3881 cut-off events. [2024-06-03 21:14:51,213 INFO L125 PetriNetUnfolderBase]: For 195386/195390 co-relation queries the response was YES. [2024-06-03 21:14:51,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26325 conditions, 3881 events. 2423/3881 cut-off events. For 195386/195390 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 22192 event pairs, 589 based on Foata normal form. 8/3888 useless extension candidates. Maximal degree in co-relation 26255. Up to 3502 conditions per place. [2024-06-03 21:14:51,238 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 132 selfloop transitions, 49 changer transitions 0/186 dead transitions. [2024-06-03 21:14:51,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 186 transitions, 2166 flow [2024-06-03 21:14:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:14:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:14:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-03 21:14:51,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-03 21:14:51,241 INFO L175 Difference]: Start difference. First operand has 147 places, 151 transitions, 1454 flow. Second operand 9 states and 172 transitions. [2024-06-03 21:14:51,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 186 transitions, 2166 flow [2024-06-03 21:14:51,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 186 transitions, 2063 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-06-03 21:14:51,351 INFO L231 Difference]: Finished difference. Result has 152 places, 155 transitions, 1576 flow [2024-06-03 21:14:51,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1351, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1576, PETRI_PLACES=152, PETRI_TRANSITIONS=155} [2024-06-03 21:14:51,352 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 108 predicate places. [2024-06-03 21:14:51,352 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 155 transitions, 1576 flow [2024-06-03 21:14:51,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:14:51,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:14:51,352 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 21:14:51,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-03 21:14:51,352 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 21:14:51,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:14:51,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1984363674, now seen corresponding path program 4 times [2024-06-03 21:14:51,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:14:51,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321444250] [2024-06-03 21:14:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:14:51,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:14:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:15:01,551 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 21:15:01,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:15:01,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321444250] [2024-06-03 21:15:01,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321444250] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:15:01,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:15:01,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:15:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977553236] [2024-06-03 21:15:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:15:01,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:15:01,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:15:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:15:01,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:15:01,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:15:01,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 155 transitions, 1576 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:15:01,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:15:01,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:15:01,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:15:03,524 INFO L124 PetriNetUnfolderBase]: 2440/3938 cut-off events. [2024-06-03 21:15:03,524 INFO L125 PetriNetUnfolderBase]: For 204144/204148 co-relation queries the response was YES. [2024-06-03 21:15:03,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26437 conditions, 3938 events. 2440/3938 cut-off events. For 204144/204148 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 22791 event pairs, 671 based on Foata normal form. 8/3945 useless extension candidates. Maximal degree in co-relation 26366. Up to 3617 conditions per place. [2024-06-03 21:15:03,550 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 141 selfloop transitions, 40 changer transitions 0/186 dead transitions. [2024-06-03 21:15:03,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 186 transitions, 2081 flow [2024-06-03 21:15:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:15:03,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:15:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-03 21:15:03,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 21:15:03,552 INFO L175 Difference]: Start difference. First operand has 152 places, 155 transitions, 1576 flow. Second operand 9 states and 171 transitions. [2024-06-03 21:15:03,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 186 transitions, 2081 flow [2024-06-03 21:15:03,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 186 transitions, 1937 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-06-03 21:15:03,686 INFO L231 Difference]: Finished difference. Result has 157 places, 158 transitions, 1602 flow [2024-06-03 21:15:03,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1602, PETRI_PLACES=157, PETRI_TRANSITIONS=158} [2024-06-03 21:15:03,686 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 113 predicate places. [2024-06-03 21:15:03,686 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 158 transitions, 1602 flow [2024-06-03 21:15:03,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:15:03,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:15:03,687 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 21:15:03,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-03 21:15:03,687 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 21:15:03,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:15:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1844734408, now seen corresponding path program 5 times [2024-06-03 21:15:03,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:15:03,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691955627] [2024-06-03 21:15:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:15:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:15:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:15:14,787 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 21:15:14,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:15:14,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691955627] [2024-06-03 21:15:14,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691955627] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:15:14,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:15:14,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:15:14,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910149115] [2024-06-03 21:15:14,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:15:14,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:15:14,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:15:14,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:15:14,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:15:14,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:15:14,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 158 transitions, 1602 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:15:14,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:15:14,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:15:14,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:15:16,785 INFO L124 PetriNetUnfolderBase]: 2432/3916 cut-off events. [2024-06-03 21:15:16,785 INFO L125 PetriNetUnfolderBase]: For 206835/206839 co-relation queries the response was YES. [2024-06-03 21:15:16,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26281 conditions, 3916 events. 2432/3916 cut-off events. For 206835/206839 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 22569 event pairs, 659 based on Foata normal form. 8/3923 useless extension candidates. Maximal degree in co-relation 26207. Up to 3605 conditions per place. [2024-06-03 21:15:16,817 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 140 selfloop transitions, 41 changer transitions 0/186 dead transitions. [2024-06-03 21:15:16,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 186 transitions, 2034 flow [2024-06-03 21:15:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-03 21:15:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-03 21:15:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-03 21:15:16,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4392764857881137 [2024-06-03 21:15:16,820 INFO L175 Difference]: Start difference. First operand has 157 places, 158 transitions, 1602 flow. Second operand 9 states and 170 transitions. [2024-06-03 21:15:16,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 186 transitions, 2034 flow [2024-06-03 21:15:16,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 186 transitions, 1897 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-06-03 21:15:16,986 INFO L231 Difference]: Finished difference. Result has 160 places, 158 transitions, 1554 flow [2024-06-03 21:15:16,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1465, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1554, PETRI_PLACES=160, PETRI_TRANSITIONS=158} [2024-06-03 21:15:16,987 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 116 predicate places. [2024-06-03 21:15:16,987 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 158 transitions, 1554 flow [2024-06-03 21:15:16,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:15:16,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:15:16,987 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 21:15:16,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-03 21:15:16,987 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:15:16,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:15:16,988 INFO L85 PathProgramCache]: Analyzing trace with hash 22818072, now seen corresponding path program 2 times [2024-06-03 21:15:16,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:15:16,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971405717] [2024-06-03 21:15:16,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:15:16,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:15:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:15:32,418 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 21:15:32,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:15:32,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971405717] [2024-06-03 21:15:32,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971405717] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:15:32,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:15:32,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:15:32,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779192078] [2024-06-03 21:15:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:15:32,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:15:32,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:15:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:15:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:15:32,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:15:32,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 158 transitions, 1554 flow. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:15:32,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:15:32,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:15:32,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:15:33,991 INFO L124 PetriNetUnfolderBase]: 2172/3606 cut-off events. [2024-06-03 21:15:33,991 INFO L125 PetriNetUnfolderBase]: For 210813/210819 co-relation queries the response was YES. [2024-06-03 21:15:34,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24634 conditions, 3606 events. 2172/3606 cut-off events. For 210813/210819 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 21738 event pairs, 632 based on Foata normal form. 5/3563 useless extension candidates. Maximal degree in co-relation 24559. Up to 3214 conditions per place. [2024-06-03 21:15:34,021 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 116 selfloop transitions, 21 changer transitions 0/171 dead transitions. [2024-06-03 21:15:34,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 171 transitions, 1892 flow [2024-06-03 21:15:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:15:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:15:34,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-03 21:15:34,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-03 21:15:34,022 INFO L175 Difference]: Start difference. First operand has 160 places, 158 transitions, 1554 flow. Second operand 7 states and 135 transitions. [2024-06-03 21:15:34,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 171 transitions, 1892 flow [2024-06-03 21:15:34,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 171 transitions, 1752 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-06-03 21:15:34,144 INFO L231 Difference]: Finished difference. Result has 156 places, 161 transitions, 1508 flow [2024-06-03 21:15:34,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1414, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1508, PETRI_PLACES=156, PETRI_TRANSITIONS=161} [2024-06-03 21:15:34,144 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 112 predicate places. [2024-06-03 21:15:34,144 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 161 transitions, 1508 flow [2024-06-03 21:15:34,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:15:34,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:15:34,144 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 21:15:34,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-03 21:15:34,144 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 21:15:34,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:15:34,145 INFO L85 PathProgramCache]: Analyzing trace with hash 29210002, now seen corresponding path program 3 times [2024-06-03 21:15:34,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:15:34,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325656524] [2024-06-03 21:15:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:15:34,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:15:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:15:47,692 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 21:15:47,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:15:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325656524] [2024-06-03 21:15:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325656524] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:15:47,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:15:47,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:15:47,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116073737] [2024-06-03 21:15:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:15:47,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:15:47,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:15:47,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:15:47,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:15:47,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:15:47,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 161 transitions, 1508 flow. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:15:47,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:15:47,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:15:47,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:15:49,188 INFO L124 PetriNetUnfolderBase]: 2179/3631 cut-off events. [2024-06-03 21:15:49,188 INFO L125 PetriNetUnfolderBase]: For 219947/219955 co-relation queries the response was YES. [2024-06-03 21:15:49,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25041 conditions, 3631 events. 2179/3631 cut-off events. For 219947/219955 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 22022 event pairs, 641 based on Foata normal form. 10/3593 useless extension candidates. Maximal degree in co-relation 24968. Up to 3208 conditions per place. [2024-06-03 21:15:49,216 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 114 selfloop transitions, 29 changer transitions 0/177 dead transitions. [2024-06-03 21:15:49,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 177 transitions, 1878 flow [2024-06-03 21:15:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:15:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:15:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-06-03 21:15:49,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45182724252491696 [2024-06-03 21:15:49,217 INFO L175 Difference]: Start difference. First operand has 156 places, 161 transitions, 1508 flow. Second operand 7 states and 136 transitions. [2024-06-03 21:15:49,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 177 transitions, 1878 flow [2024-06-03 21:15:49,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 177 transitions, 1806 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-06-03 21:15:49,416 INFO L231 Difference]: Finished difference. Result has 159 places, 167 transitions, 1582 flow [2024-06-03 21:15:49,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1582, PETRI_PLACES=159, PETRI_TRANSITIONS=167} [2024-06-03 21:15:49,416 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 115 predicate places. [2024-06-03 21:15:49,417 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 167 transitions, 1582 flow [2024-06-03 21:15:49,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 21:15:49,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:15:49,417 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 21:15:49,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-03 21:15:49,417 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:15:49,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:15:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash -177854343, now seen corresponding path program 1 times [2024-06-03 21:15:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:15:49,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932260187] [2024-06-03 21:15:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:15:49,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:15:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:16:01,194 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 21:16:01,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:16:01,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932260187] [2024-06-03 21:16:01,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932260187] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:16:01,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:16:01,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:16:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746786213] [2024-06-03 21:16:01,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:16:01,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:16:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:16:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:16:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:16:01,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:16:01,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 167 transitions, 1582 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:01,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:16:01,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:16:01,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:16:02,840 INFO L124 PetriNetUnfolderBase]: 2340/3842 cut-off events. [2024-06-03 21:16:02,840 INFO L125 PetriNetUnfolderBase]: For 229717/229717 co-relation queries the response was YES. [2024-06-03 21:16:02,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26638 conditions, 3842 events. 2340/3842 cut-off events. For 229717/229717 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 22626 event pairs, 628 based on Foata normal form. 2/3843 useless extension candidates. Maximal degree in co-relation 26563. Up to 3543 conditions per place. [2024-06-03 21:16:02,871 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 163 selfloop transitions, 14 changer transitions 0/187 dead transitions. [2024-06-03 21:16:02,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 187 transitions, 2020 flow [2024-06-03 21:16:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:16:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:16:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-03 21:16:02,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-03 21:16:02,872 INFO L175 Difference]: Start difference. First operand has 159 places, 167 transitions, 1582 flow. Second operand 7 states and 134 transitions. [2024-06-03 21:16:02,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 187 transitions, 2020 flow [2024-06-03 21:16:03,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 187 transitions, 1959 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-06-03 21:16:03,131 INFO L231 Difference]: Finished difference. Result has 163 places, 170 transitions, 1601 flow [2024-06-03 21:16:03,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1521, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1601, PETRI_PLACES=163, PETRI_TRANSITIONS=170} [2024-06-03 21:16:03,131 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 119 predicate places. [2024-06-03 21:16:03,131 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 170 transitions, 1601 flow [2024-06-03 21:16:03,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:03,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:16:03,131 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 21:16:03,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-03 21:16:03,132 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:16:03,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:16:03,132 INFO L85 PathProgramCache]: Analyzing trace with hash -177704613, now seen corresponding path program 2 times [2024-06-03 21:16:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:16:03,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441358284] [2024-06-03 21:16:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:16:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:16:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:16:15,486 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 21:16:15,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:16:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441358284] [2024-06-03 21:16:15,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441358284] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:16:15,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:16:15,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:16:15,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132507145] [2024-06-03 21:16:15,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:16:15,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:16:15,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:16:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:16:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:16:15,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:16:15,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 170 transitions, 1601 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:15,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:16:15,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:16:15,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:16:17,084 INFO L124 PetriNetUnfolderBase]: 2350/3858 cut-off events. [2024-06-03 21:16:17,084 INFO L125 PetriNetUnfolderBase]: For 238482/238482 co-relation queries the response was YES. [2024-06-03 21:16:17,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27259 conditions, 3858 events. 2350/3858 cut-off events. For 238482/238482 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 22756 event pairs, 628 based on Foata normal form. 2/3859 useless extension candidates. Maximal degree in co-relation 27182. Up to 3548 conditions per place. [2024-06-03 21:16:17,119 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 159 selfloop transitions, 19 changer transitions 0/188 dead transitions. [2024-06-03 21:16:17,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 188 transitions, 2043 flow [2024-06-03 21:16:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:16:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:16:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-03 21:16:17,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-03 21:16:17,120 INFO L175 Difference]: Start difference. First operand has 163 places, 170 transitions, 1601 flow. Second operand 7 states and 134 transitions. [2024-06-03 21:16:17,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 188 transitions, 2043 flow [2024-06-03 21:16:17,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 188 transitions, 1985 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-06-03 21:16:17,345 INFO L231 Difference]: Finished difference. Result has 165 places, 173 transitions, 1639 flow [2024-06-03 21:16:17,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1543, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1639, PETRI_PLACES=165, PETRI_TRANSITIONS=173} [2024-06-03 21:16:17,346 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 121 predicate places. [2024-06-03 21:16:17,346 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 173 transitions, 1639 flow [2024-06-03 21:16:17,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:17,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:16:17,346 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 21:16:17,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-03 21:16:17,346 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:16:17,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:16:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 15650934, now seen corresponding path program 1 times [2024-06-03 21:16:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:16:17,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348492020] [2024-06-03 21:16:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:16:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:16:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:16:30,280 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 21:16:30,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:16:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348492020] [2024-06-03 21:16:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348492020] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:16:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:16:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:16:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208701385] [2024-06-03 21:16:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:16:30,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:16:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:16:30,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:16:30,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:16:30,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:16:30,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 173 transitions, 1639 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:30,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:16:30,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:16:30,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:16:31,864 INFO L124 PetriNetUnfolderBase]: 2355/3857 cut-off events. [2024-06-03 21:16:31,864 INFO L125 PetriNetUnfolderBase]: For 247919/247919 co-relation queries the response was YES. [2024-06-03 21:16:31,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27797 conditions, 3857 events. 2355/3857 cut-off events. For 247919/247919 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 22653 event pairs, 617 based on Foata normal form. 2/3858 useless extension candidates. Maximal degree in co-relation 27719. Up to 3573 conditions per place. [2024-06-03 21:16:31,895 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 165 selfloop transitions, 14 changer transitions 0/189 dead transitions. [2024-06-03 21:16:31,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 189 transitions, 2075 flow [2024-06-03 21:16:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:16:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:16:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-03 21:16:31,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318936877076412 [2024-06-03 21:16:31,896 INFO L175 Difference]: Start difference. First operand has 165 places, 173 transitions, 1639 flow. Second operand 7 states and 130 transitions. [2024-06-03 21:16:31,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 189 transitions, 2075 flow [2024-06-03 21:16:32,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 189 transitions, 2001 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-03 21:16:32,061 INFO L231 Difference]: Finished difference. Result has 167 places, 176 transitions, 1651 flow [2024-06-03 21:16:32,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1651, PETRI_PLACES=167, PETRI_TRANSITIONS=176} [2024-06-03 21:16:32,062 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 123 predicate places. [2024-06-03 21:16:32,062 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 176 transitions, 1651 flow [2024-06-03 21:16:32,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:32,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:16:32,063 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 21:16:32,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-03 21:16:32,063 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:16:32,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:16:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash 23002367, now seen corresponding path program 3 times [2024-06-03 21:16:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:16:32,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572611086] [2024-06-03 21:16:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:16:32,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:16:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:16:44,560 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 21:16:44,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:16:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572611086] [2024-06-03 21:16:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572611086] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:16:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:16:44,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:16:44,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133530781] [2024-06-03 21:16:44,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:16:44,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:16:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:16:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:16:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:16:44,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:16:44,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 176 transitions, 1651 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:44,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:16:44,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:16:44,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:16:46,219 INFO L124 PetriNetUnfolderBase]: 2357/3874 cut-off events. [2024-06-03 21:16:46,219 INFO L125 PetriNetUnfolderBase]: For 255203/255205 co-relation queries the response was YES. [2024-06-03 21:16:46,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28141 conditions, 3874 events. 2357/3874 cut-off events. For 255203/255205 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 22934 event pairs, 635 based on Foata normal form. 4/3877 useless extension candidates. Maximal degree in co-relation 28062. Up to 3546 conditions per place. [2024-06-03 21:16:46,250 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 155 selfloop transitions, 26 changer transitions 0/191 dead transitions. [2024-06-03 21:16:46,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 191 transitions, 2099 flow [2024-06-03 21:16:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:16:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:16:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-03 21:16:46,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-03 21:16:46,252 INFO L175 Difference]: Start difference. First operand has 167 places, 176 transitions, 1651 flow. Second operand 7 states and 133 transitions. [2024-06-03 21:16:46,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 191 transitions, 2099 flow [2024-06-03 21:16:46,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 191 transitions, 2035 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-03 21:16:46,462 INFO L231 Difference]: Finished difference. Result has 169 places, 179 transitions, 1705 flow [2024-06-03 21:16:46,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1587, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1705, PETRI_PLACES=169, PETRI_TRANSITIONS=179} [2024-06-03 21:16:46,462 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 125 predicate places. [2024-06-03 21:16:46,463 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 179 transitions, 1705 flow [2024-06-03 21:16:46,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:16:46,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:16:46,463 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 21:16:46,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-03 21:16:46,463 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:16:46,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:16:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash 23002584, now seen corresponding path program 2 times [2024-06-03 21:16:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:16:46,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166762175] [2024-06-03 21:16:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:16:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:16:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:17:01,018 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 21:17:01,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:17:01,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166762175] [2024-06-03 21:17:01,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166762175] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:17:01,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:17:01,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:17:01,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852859563] [2024-06-03 21:17:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:17:01,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:17:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:17:01,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:17:01,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:17:01,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:17:01,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 179 transitions, 1705 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:01,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:17:01,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:17:01,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:17:02,669 INFO L124 PetriNetUnfolderBase]: 2367/3877 cut-off events. [2024-06-03 21:17:02,670 INFO L125 PetriNetUnfolderBase]: For 265250/265252 co-relation queries the response was YES. [2024-06-03 21:17:02,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28778 conditions, 3877 events. 2367/3877 cut-off events. For 265250/265252 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 22800 event pairs, 620 based on Foata normal form. 4/3880 useless extension candidates. Maximal degree in co-relation 28698. Up to 3582 conditions per place. [2024-06-03 21:17:02,699 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 163 selfloop transitions, 19 changer transitions 0/192 dead transitions. [2024-06-03 21:17:02,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 192 transitions, 2147 flow [2024-06-03 21:17:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:17:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:17:02,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-03 21:17:02,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-03 21:17:02,700 INFO L175 Difference]: Start difference. First operand has 169 places, 179 transitions, 1705 flow. Second operand 7 states and 129 transitions. [2024-06-03 21:17:02,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 192 transitions, 2147 flow [2024-06-03 21:17:02,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 192 transitions, 2051 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-06-03 21:17:02,935 INFO L231 Difference]: Finished difference. Result has 171 places, 182 transitions, 1713 flow [2024-06-03 21:17:02,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1609, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1713, PETRI_PLACES=171, PETRI_TRANSITIONS=182} [2024-06-03 21:17:02,936 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 127 predicate places. [2024-06-03 21:17:02,936 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 182 transitions, 1713 flow [2024-06-03 21:17:02,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:02,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:17:02,936 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 21:17:02,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-03 21:17:02,936 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:17:02,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:17:02,937 INFO L85 PathProgramCache]: Analyzing trace with hash 23269494, now seen corresponding path program 3 times [2024-06-03 21:17:02,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:17:02,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341500734] [2024-06-03 21:17:02,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:17:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:17:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:17:17,310 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 21:17:17,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:17:17,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341500734] [2024-06-03 21:17:17,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341500734] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:17:17,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:17:17,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:17:17,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157953309] [2024-06-03 21:17:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:17:17,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:17:17,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:17:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:17:17,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:17:17,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-03 21:17:17,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 182 transitions, 1713 flow. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:17,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:17:17,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-03 21:17:17,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:17:18,893 INFO L124 PetriNetUnfolderBase]: 2361/3879 cut-off events. [2024-06-03 21:17:18,893 INFO L125 PetriNetUnfolderBase]: For 271090/271092 co-relation queries the response was YES. [2024-06-03 21:17:18,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28937 conditions, 3879 events. 2361/3879 cut-off events. For 271090/271092 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 22898 event pairs, 630 based on Foata normal form. 4/3882 useless extension candidates. Maximal degree in co-relation 28856. Up to 3563 conditions per place. [2024-06-03 21:17:18,924 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 156 selfloop transitions, 29 changer transitions 0/195 dead transitions. [2024-06-03 21:17:18,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 195 transitions, 2167 flow [2024-06-03 21:17:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:17:18,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:17:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-03 21:17:18,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318936877076412 [2024-06-03 21:17:18,925 INFO L175 Difference]: Start difference. First operand has 171 places, 182 transitions, 1713 flow. Second operand 7 states and 130 transitions. [2024-06-03 21:17:18,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 195 transitions, 2167 flow [2024-06-03 21:17:19,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 195 transitions, 2085 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-06-03 21:17:19,177 INFO L231 Difference]: Finished difference. Result has 173 places, 185 transitions, 1762 flow [2024-06-03 21:17:19,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1631, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1762, PETRI_PLACES=173, PETRI_TRANSITIONS=185} [2024-06-03 21:17:19,177 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 129 predicate places. [2024-06-03 21:17:19,177 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 185 transitions, 1762 flow [2024-06-03 21:17:19,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:19,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:17:19,178 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 21:17:19,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-03 21:17:19,178 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:17:19,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:17:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash 23279414, now seen corresponding path program 1 times [2024-06-03 21:17:19,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:17:19,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401916776] [2024-06-03 21:17:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:17:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:17:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:17:33,400 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 21:17:33,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:17:33,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401916776] [2024-06-03 21:17:33,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401916776] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:17:33,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:17:33,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-03 21:17:33,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478695016] [2024-06-03 21:17:33,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:17:33,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-03 21:17:33,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:17:33,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-03 21:17:33,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-03 21:17:33,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:17:33,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 185 transitions, 1762 flow. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 21:17:33,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:17:33,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:17:33,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:17:35,083 INFO L124 PetriNetUnfolderBase]: 2207/3691 cut-off events. [2024-06-03 21:17:35,083 INFO L125 PetriNetUnfolderBase]: For 279258/279266 co-relation queries the response was YES. [2024-06-03 21:17:35,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28336 conditions, 3691 events. 2207/3691 cut-off events. For 279258/279266 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 22440 event pairs, 630 based on Foata normal form. 3/3648 useless extension candidates. Maximal degree in co-relation 28254. Up to 3277 conditions per place. [2024-06-03 21:17:35,113 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 145 selfloop transitions, 17 changer transitions 0/199 dead transitions. [2024-06-03 21:17:35,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 199 transitions, 2166 flow [2024-06-03 21:17:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:17:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:17:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2024-06-03 21:17:35,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4331395348837209 [2024-06-03 21:17:35,114 INFO L175 Difference]: Start difference. First operand has 173 places, 185 transitions, 1762 flow. Second operand 8 states and 149 transitions. [2024-06-03 21:17:35,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 199 transitions, 2166 flow [2024-06-03 21:17:35,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 199 transitions, 2059 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-06-03 21:17:35,312 INFO L231 Difference]: Finished difference. Result has 176 places, 188 transitions, 1755 flow [2024-06-03 21:17:35,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1755, PETRI_PLACES=176, PETRI_TRANSITIONS=188} [2024-06-03 21:17:35,313 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 132 predicate places. [2024-06-03 21:17:35,313 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 188 transitions, 1755 flow [2024-06-03 21:17:35,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 21:17:35,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:17:35,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:17:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-03 21:17:35,313 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 21:17:35,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:17:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1748588762, now seen corresponding path program 1 times [2024-06-03 21:17:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:17:35,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050931041] [2024-06-03 21:17:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:17:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:17:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:17:48,052 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 21:17:48,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:17:48,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050931041] [2024-06-03 21:17:48,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050931041] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:17:48,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:17:48,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:17:48,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090440477] [2024-06-03 21:17:48,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:17:48,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:17:48,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:17:48,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:17:48,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:17:48,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:17:48,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 188 transitions, 1755 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:48,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:17:48,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:17:48,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:17:49,802 INFO L124 PetriNetUnfolderBase]: 2474/3993 cut-off events. [2024-06-03 21:17:49,802 INFO L125 PetriNetUnfolderBase]: For 286793/286795 co-relation queries the response was YES. [2024-06-03 21:17:49,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30282 conditions, 3993 events. 2474/3993 cut-off events. For 286793/286795 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 23168 event pairs, 660 based on Foata normal form. 3/3995 useless extension candidates. Maximal degree in co-relation 30199. Up to 3761 conditions per place. [2024-06-03 21:17:49,835 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 186 selfloop transitions, 19 changer transitions 0/210 dead transitions. [2024-06-03 21:17:49,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 210 transitions, 2269 flow [2024-06-03 21:17:49,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:17:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:17:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-03 21:17:49,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2024-06-03 21:17:49,836 INFO L175 Difference]: Start difference. First operand has 176 places, 188 transitions, 1755 flow. Second operand 7 states and 132 transitions. [2024-06-03 21:17:49,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 210 transitions, 2269 flow [2024-06-03 21:17:50,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 210 transitions, 2161 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-06-03 21:17:50,073 INFO L231 Difference]: Finished difference. Result has 176 places, 191 transitions, 1753 flow [2024-06-03 21:17:50,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1647, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1753, PETRI_PLACES=176, PETRI_TRANSITIONS=191} [2024-06-03 21:17:50,073 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 132 predicate places. [2024-06-03 21:17:50,073 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 191 transitions, 1753 flow [2024-06-03 21:17:50,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:17:50,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:17:50,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:17:50,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-03 21:17:50,074 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 21:17:50,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:17:50,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1879260942, now seen corresponding path program 2 times [2024-06-03 21:17:50,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:17:50,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90778534] [2024-06-03 21:17:50,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:17:50,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:17:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:18:02,566 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 21:18:02,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:18:02,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90778534] [2024-06-03 21:18:02,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90778534] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:18:02,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:18:02,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:18:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607559689] [2024-06-03 21:18:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:18:02,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:18:02,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:18:02,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:18:02,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:18:02,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:18:02,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 191 transitions, 1753 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:02,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:18:02,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:18:02,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:18:04,216 INFO L124 PetriNetUnfolderBase]: 2487/4011 cut-off events. [2024-06-03 21:18:04,216 INFO L125 PetriNetUnfolderBase]: For 298224/298226 co-relation queries the response was YES. [2024-06-03 21:18:04,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30902 conditions, 4011 events. 2487/4011 cut-off events. For 298224/298226 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 23271 event pairs, 660 based on Foata normal form. 3/4013 useless extension candidates. Maximal degree in co-relation 30819. Up to 3769 conditions per place. [2024-06-03 21:18:04,251 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 185 selfloop transitions, 26 changer transitions 0/216 dead transitions. [2024-06-03 21:18:04,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 216 transitions, 2464 flow [2024-06-03 21:18:04,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:18:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:18:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 131 transitions. [2024-06-03 21:18:04,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43521594684385384 [2024-06-03 21:18:04,252 INFO L175 Difference]: Start difference. First operand has 176 places, 191 transitions, 1753 flow. Second operand 7 states and 131 transitions. [2024-06-03 21:18:04,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 216 transitions, 2464 flow [2024-06-03 21:18:04,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 216 transitions, 2380 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-06-03 21:18:04,513 INFO L231 Difference]: Finished difference. Result has 179 places, 199 transitions, 1883 flow [2024-06-03 21:18:04,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1669, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1883, PETRI_PLACES=179, PETRI_TRANSITIONS=199} [2024-06-03 21:18:04,514 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 135 predicate places. [2024-06-03 21:18:04,514 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 199 transitions, 1883 flow [2024-06-03 21:18:04,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:04,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:18:04,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:18:04,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-03 21:18:04,514 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 21:18:04,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:18:04,514 INFO L85 PathProgramCache]: Analyzing trace with hash -630379080, now seen corresponding path program 1 times [2024-06-03 21:18:04,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:18:04,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247323360] [2024-06-03 21:18:04,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:18:04,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:18:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:18:15,167 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 21:18:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:18:15,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247323360] [2024-06-03 21:18:15,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247323360] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:18:15,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:18:15,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-03 21:18:15,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010072747] [2024-06-03 21:18:15,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:18:15,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-03 21:18:15,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:18:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-03 21:18:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-06-03 21:18:15,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:18:15,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 199 transitions, 1883 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:15,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:18:15,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:18:15,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:18:17,527 INFO L124 PetriNetUnfolderBase]: 2651/4307 cut-off events. [2024-06-03 21:18:17,527 INFO L125 PetriNetUnfolderBase]: For 327410/327412 co-relation queries the response was YES. [2024-06-03 21:18:17,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32894 conditions, 4307 events. 2651/4307 cut-off events. For 327410/327412 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 25574 event pairs, 641 based on Foata normal form. 12/4317 useless extension candidates. Maximal degree in co-relation 32809. Up to 3452 conditions per place. [2024-06-03 21:18:17,566 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 177 selfloop transitions, 70 changer transitions 0/252 dead transitions. [2024-06-03 21:18:17,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 252 transitions, 2693 flow [2024-06-03 21:18:17,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-03 21:18:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-03 21:18:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2024-06-03 21:18:17,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4627906976744186 [2024-06-03 21:18:17,569 INFO L175 Difference]: Start difference. First operand has 179 places, 199 transitions, 1883 flow. Second operand 10 states and 199 transitions. [2024-06-03 21:18:17,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 252 transitions, 2693 flow [2024-06-03 21:18:17,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 252 transitions, 2607 flow, removed 34 selfloop flow, removed 3 redundant places. [2024-06-03 21:18:17,802 INFO L231 Difference]: Finished difference. Result has 188 places, 210 transitions, 2135 flow [2024-06-03 21:18:17,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1797, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2135, PETRI_PLACES=188, PETRI_TRANSITIONS=210} [2024-06-03 21:18:17,802 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 144 predicate places. [2024-06-03 21:18:17,802 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 210 transitions, 2135 flow [2024-06-03 21:18:17,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:17,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:18:17,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:18:17,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-03 21:18:17,803 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:18:17,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:18:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash 215262442, now seen corresponding path program 1 times [2024-06-03 21:18:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:18:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110985089] [2024-06-03 21:18:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:18:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:18:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:18:33,583 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 21:18:33,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:18:33,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110985089] [2024-06-03 21:18:33,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110985089] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:18:33,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:18:33,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-03 21:18:33,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433146739] [2024-06-03 21:18:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:18:33,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:18:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:18:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:18:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:18:33,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-03 21:18:33,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 210 transitions, 2135 flow. Second operand has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 21:18:33,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:18:33,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-03 21:18:33,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:18:35,478 INFO L124 PetriNetUnfolderBase]: 2416/4050 cut-off events. [2024-06-03 21:18:35,478 INFO L125 PetriNetUnfolderBase]: For 327451/327469 co-relation queries the response was YES. [2024-06-03 21:18:35,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32252 conditions, 4050 events. 2416/4050 cut-off events. For 327451/327469 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 25095 event pairs, 645 based on Foata normal form. 7/4003 useless extension candidates. Maximal degree in co-relation 32163. Up to 3543 conditions per place. [2024-06-03 21:18:35,514 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 166 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2024-06-03 21:18:35,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 230 transitions, 2607 flow [2024-06-03 21:18:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-03 21:18:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-03 21:18:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-03 21:18:35,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058139534883723 [2024-06-03 21:18:35,517 INFO L175 Difference]: Start difference. First operand has 188 places, 210 transitions, 2135 flow. Second operand 8 states and 155 transitions. [2024-06-03 21:18:35,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 230 transitions, 2607 flow [2024-06-03 21:18:35,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 230 transitions, 2468 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-06-03 21:18:35,846 INFO L231 Difference]: Finished difference. Result has 191 places, 213 transitions, 2106 flow [2024-06-03 21:18:35,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2106, PETRI_PLACES=191, PETRI_TRANSITIONS=213} [2024-06-03 21:18:35,847 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 147 predicate places. [2024-06-03 21:18:35,847 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 213 transitions, 2106 flow [2024-06-03 21:18:35,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.6) internal successors, (136), 10 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 21:18:35,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:18:35,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:18:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-03 21:18:35,847 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:18:35,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:18:35,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1549286972, now seen corresponding path program 3 times [2024-06-03 21:18:35,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:18:35,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744209332] [2024-06-03 21:18:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:18:35,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:18:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:18:48,605 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 21:18:48,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:18:48,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744209332] [2024-06-03 21:18:48,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744209332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:18:48,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:18:48,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-03 21:18:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338602251] [2024-06-03 21:18:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:18:48,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-03 21:18:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:18:48,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-03 21:18:48,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-03 21:18:48,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-03 21:18:48,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 213 transitions, 2106 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:48,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:18:48,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-03 21:18:48,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:18:50,446 INFO L124 PetriNetUnfolderBase]: 2658/4338 cut-off events. [2024-06-03 21:18:50,446 INFO L125 PetriNetUnfolderBase]: For 328961/328965 co-relation queries the response was YES. [2024-06-03 21:18:50,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33866 conditions, 4338 events. 2658/4338 cut-off events. For 328961/328965 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 25936 event pairs, 686 based on Foata normal form. 5/4342 useless extension candidates. Maximal degree in co-relation 33776. Up to 4073 conditions per place. [2024-06-03 21:18:50,486 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 206 selfloop transitions, 19 changer transitions 0/230 dead transitions. [2024-06-03 21:18:50,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 2607 flow [2024-06-03 21:18:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-03 21:18:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-03 21:18:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-03 21:18:50,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-03 21:18:50,487 INFO L175 Difference]: Start difference. First operand has 191 places, 213 transitions, 2106 flow. Second operand 7 states and 129 transitions. [2024-06-03 21:18:50,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 2607 flow [2024-06-03 21:18:50,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 230 transitions, 2479 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-06-03 21:18:50,825 INFO L231 Difference]: Finished difference. Result has 192 places, 214 transitions, 2035 flow [2024-06-03 21:18:50,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1982, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2035, PETRI_PLACES=192, PETRI_TRANSITIONS=214} [2024-06-03 21:18:50,826 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 148 predicate places. [2024-06-03 21:18:50,826 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 214 transitions, 2035 flow [2024-06-03 21:18:50,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-03 21:18:50,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:18:50,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:18:50,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-03 21:18:50,827 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-03 21:18:50,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:18:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1213882610, now seen corresponding path program 4 times [2024-06-03 21:18:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:18:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815164842] [2024-06-03 21:18:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:18:50,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:18:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15