./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix052_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/mix052_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/mix052_pso.opt_rmo.opt_tso.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix052_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 [2024-06-04 17:28:47,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 17:28:47,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 17:28:47,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 17:28:47,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 17:28:47,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 17:28:47,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 17:28:47,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 17:28:47,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 17:28:47,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 17:28:47,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 17:28:47,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 17:28:47,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 17:28:47,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 17:28:47,621 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 17:28:47,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 17:28:47,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 17:28:47,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 17:28:47,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 17:28:47,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 17:28:47,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 17:28:47,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 17:28:47,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 17:28:47,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 17:28:47,624 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 17:28:47,624 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 17:28:47,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 17:28:47,625 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 17:28:47,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 17:28:47,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 17:28:47,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 17:28:47,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 17:28:47,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 17:28:47,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 17:28:47,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 17:28:47,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 17:28:47,627 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 17:28:47,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 17:28:47,627 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 17:28:47,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 17:28:47,628 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 17:28:47,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 17:28:47,628 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 17:28:47,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 17:28:47,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 17:28:47,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 17:28:47,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 17:28:47,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 17:28:47,901 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 17:28:47,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2024-06-04 17:28:49,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 17:28:49,287 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 17:28:49,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2024-06-04 17:28:49,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/505dafd18/3a76c7d6c1eb438393d27f45bf0fc44f/FLAGd2da0dbb6 [2024-06-04 17:28:49,313 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/505dafd18/3a76c7d6c1eb438393d27f45bf0fc44f [2024-06-04 17:28:49,316 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 17:28:49,317 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 17:28:49,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix052_pso.opt_rmo.opt_tso.opt.yml/witness.yml [2024-06-04 17:28:49,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 17:28:49,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 17:28:49,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 17:28:49,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 17:28:49,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 17:28:49,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 05:28:49" (1/2) ... [2024-06-04 17:28:49,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433daed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 05:28:49, skipping insertion in model container [2024-06-04 17:28:49,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 05:28:49" (1/2) ... [2024-06-04 17:28:49,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46b0c9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 05:28:49, skipping insertion in model container [2024-06-04 17:28:49,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 05:28:49" (2/2) ... [2024-06-04 17:28:49,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433daed9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:49, skipping insertion in model container [2024-06-04 17:28:49,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 05:28:49" (2/2) ... [2024-06-04 17:28:49,566 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 17:28:49,662 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 17:28:49,663 INFO L97 edCorrectnessWitness]: Location invariant before [L826-L826] ((((((((((((((((((! multithreaded || y$r_buff1_thd1 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (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_buff0_thd3 >= 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$r_buff0_thd0) + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (0LL - (long long )y$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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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_buff0_thd3 >= 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$r_buff0_thd2) + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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$r_buff1_thd1) + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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_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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$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 )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_buff0_thd3 >= 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$tmp_guard1 + (long long )y$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd2 >= 0LL) && (long long )x + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y + (long long )y$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_buff0_thd3 >= 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$flush_delayed + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y$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_buff0_thd3 >= 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$r_buff0_thd0 + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y$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_buff0_thd3 >= 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$r_buff0_thd2 + (long long )y$r_buff1_thd3 >= 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_buff0_thd3 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 + (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$r_buff1_thd0 + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (long long )y$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$r_buff1_thd2 + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd2 + (long long )z >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd3 + (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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_EAX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (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$r_buff0_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$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$r_buff1_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$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_EAX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (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_EAX) - (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$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$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_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$read_delayed >= 0LL) && (long long )main$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_buff0_thd3 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 - (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$read_delayed >= 0LL) && (long long )y$r_buff1_thd3 - (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 || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 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_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 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)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1))) [2024-06-04 17:28:49,664 INFO L97 edCorrectnessWitness]: Location invariant before [L829-L829] ((((((((((((((((((! multithreaded || y$r_buff1_thd1 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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$r_buff1_thd3 >= 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$r_buff1_thd3 >= 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$r_buff1_thd3 >= 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_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )y$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )y$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 + (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$r_buff1_thd3 >= 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$r_buff1_thd3 >= 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$r_buff1_thd3 >= 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$r_buff1_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd3 + (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$$choice0 + (long long )y$r_buff0_thd3 >= 0LL) && (long long )weak$$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$$choice0 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )weak$$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$$choice2 + (long long )y$r_buff0_thd3 >= 0LL) && (long long )weak$$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$$choice2 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )weak$$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$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EAX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (1LL + (long long )x) - (long long )z >= 0LL) && (1LL + (long long )y) - (long long )z >= 0LL) && (1LL + (long long )y$flush_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$mem_tmp) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff0_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd0) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd1) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd2) - (long long )z >= 0LL) && (1LL + (long long )y$r_buff1_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$read_delayed) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff0) - (long long )z >= 0LL) && (1LL + (long long )y$w_buff1) - (long long )z >= 0LL) && (1LL + (long long )weak$$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_EAX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (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_EAX) - (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_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_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 )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_buff0_thd3 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 - (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 )y$r_buff1_thd3 - (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$read_delayed >= 0LL))) && (! multithreaded || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && y <= 1) && y$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$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (y == 0 || y == 1)) && (y$mem_tmp == 0 || y$mem_tmp == 1)) && (y$w_buff0 == 0 || y$w_buff0 == 1)) && (y$w_buff1 == 0 || y$w_buff1 == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1))) [2024-06-04 17:28:49,665 INFO L97 edCorrectnessWitness]: Location invariant before [L828-L828] ((((((((((((((((((! multithreaded || y$r_buff1_thd1 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || y$read_delayed_var == 0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EAX) + (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_buff0_thd3 >= 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$r_buff0_thd0) + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (0LL - (long long )y$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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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_buff0_thd3 >= 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$r_buff0_thd2) + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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$r_buff1_thd1) + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (0LL - (long long )y$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$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )y$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )y$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_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y$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_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$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y$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 )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_buff0_thd3 >= 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$tmp_guard1 + (long long )y$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd2 >= 0LL) && (long long )x + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y + (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y + (long long )y$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_buff0_thd3 >= 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$flush_delayed + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y$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_buff0_thd3 >= 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$r_buff0_thd0 + (long long )y$r_buff1_thd3 >= 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$r_buff0_thd3 >= 0LL) && (long long )y$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$r_buff1_thd3 >= 0LL) && (long long )y$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_buff0_thd3 >= 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$r_buff0_thd2 + (long long )y$r_buff1_thd3 >= 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_buff0_thd3 + (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$r_buff1_thd3 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff0_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff0_thd3 + (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$r_buff1_thd0 + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd3 >= 0LL) && (long long )y$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$r_buff1_thd2 + (long long )y$r_buff1_thd3 >= 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$r_buff1_thd2 + (long long )z >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$read_delayed >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff0 >= 0LL) && (long long )y$r_buff1_thd3 + (long long )y$w_buff1 >= 0LL) && (long long )y$r_buff1_thd3 + (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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_buff0_thd3 >= 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$r_buff1_thd3 >= 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_EAX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EAX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )z >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (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$r_buff0_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$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$r_buff1_thd3) - (long long )z >= 0LL) && (1LL + (long long )y$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_EAX) - (long long )y$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (long long )y$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EAX) - (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_EAX) - (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$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )y$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_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$read_delayed >= 0LL) && (long long )main$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_buff0_thd3 - (long long )y$r_buff1_thd0 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd1 >= 0LL) && (long long )y$r_buff0_thd3 - (long long )y$r_buff1_thd2 >= 0LL) && (long long )y$r_buff0_thd3 - (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$read_delayed >= 0LL) && (long long )y$r_buff1_thd3 - (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$read_delayed >= 0LL))) && (! multithreaded || y$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$mem_tmp && y$mem_tmp <= 1) && (y$mem_tmp == 0 || y$mem_tmp == 1)))) && (! multithreaded || ((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= y) && 0 <= y$mem_tmp) && 0 <= y$w_buff0) && 0 <= y$w_buff1) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && y <= 1) && y$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$read_delayed_var == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (y == 0 || y == 1)) && (y$mem_tmp == 0 || y$mem_tmp == 1)) && (y$w_buff0 == 0 || y$w_buff0 == 1)) && (y$w_buff1 == 0 || y$w_buff1 == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || y$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= y$w_buff1 && y$w_buff1 <= 1) && (y$w_buff1 == 0 || y$w_buff1 == 1)))) && (! multithreaded || y$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || y$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || y$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || y$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x && x <= 2) && x <= 127) && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= y$w_buff0 && y$w_buff0 <= 1) && (y$w_buff0 == 0 || y$w_buff0 == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1))) [2024-06-04 17:28:49,665 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 17:28:49,666 INFO L106 edCorrectnessWitness]: ghost_update [L824-L824] multithreaded = 1; [2024-06-04 17:28:49,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 17:28:50,051 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 17:28:50,067 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 17:28:50,445 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 17:28:50,492 INFO L206 MainTranslator]: Completed translation [2024-06-04 17:28:50,493 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50 WrapperNode [2024-06-04 17:28:50,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 17:28:50,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 17:28:50,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 17:28:50,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 17:28:50,501 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 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,597 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 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,718 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 125 [2024-06-04 17:28:50,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 17:28:50,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 17:28:50,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 17:28:50,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 17:28:50,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,806 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]. [2024-06-04 17:28:50,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 17:28:50,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 17:28:50,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 17:28:50,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 17:28:50,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (1/1) ... [2024-06-04 17:28:50,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 17:28:50,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 17:28:50,917 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) [2024-06-04 17:28:50,944 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 [2024-06-04 17:28:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 17:28:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 17:28:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-04 17:28:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-04 17:28:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-04 17:28:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-04 17:28:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-04 17:28:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-04 17:28:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 17:28:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 17:28:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 17:28:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 17:28:50,966 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 17:28:51,138 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 17:28:51,141 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 17:28:52,643 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 17:28:52,644 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 17:28:52,932 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 17:28:52,933 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 17:28:52,933 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 05:28:52 BoogieIcfgContainer [2024-06-04 17:28:52,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 17:28:52,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 17:28:52,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 17:28:52,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 17:28:52,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 05:28:49" (1/4) ... [2024-06-04 17:28:52,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3baa186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 05:28:52, skipping insertion in model container [2024-06-04 17:28:52,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 05:28:49" (2/4) ... [2024-06-04 17:28:52,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3baa186f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 05:28:52, skipping insertion in model container [2024-06-04 17:28:52,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 05:28:50" (3/4) ... [2024-06-04 17:28:52,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3baa186f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 05:28:52, skipping insertion in model container [2024-06-04 17:28:52,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 05:28:52" (4/4) ... [2024-06-04 17:28:52,941 INFO L112 eAbstractionObserver]: Analyzing ICFG mix052_pso.opt_rmo.opt_tso.opt.i [2024-06-04 17:28:52,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 17:28:52,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-04 17:28:52,957 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 17:28:53,089 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-04 17:28:53,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-06-04 17:28:53,188 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-06-04 17:28:53,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 17:28:53,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-04 17:28:53,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-06-04 17:28:53,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-06-04 17:28:53,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 17:28:53,217 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;@41cb3398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 17:28:53,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-04 17:28:53,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 17:28:53,228 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 17:28:53,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 17:28:53,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:28:53,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 17:28:53,229 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)] === [2024-06-04 17:28:53,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:28:53,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1879000425, now seen corresponding path program 1 times [2024-06-04 17:28:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:28:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042876584] [2024-06-04 17:28:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:28:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:28:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:00,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:00,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:00,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042876584] [2024-06-04 17:29:00,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042876584] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:00,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:00,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 17:29:00,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042844095] [2024-06-04 17:29:00,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:00,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 17:29:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:00,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 17:29:00,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 17:29:00,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-06-04 17:29:00,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:00,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:00,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-06-04 17:29:00,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:01,251 INFO L124 PetriNetUnfolderBase]: 946/1517 cut-off events. [2024-06-04 17:29:01,251 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-06-04 17:29:01,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3025 conditions, 1517 events. 946/1517 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7364 event pairs, 638 based on Foata normal form. 1/1473 useless extension candidates. Maximal degree in co-relation 3010. Up to 1431 conditions per place. [2024-06-04 17:29:01,269 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 32 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2024-06-04 17:29:01,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 171 flow [2024-06-04 17:29:01,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 17:29:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 17:29:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-06-04 17:29:01,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6097560975609756 [2024-06-04 17:29:01,282 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 3 states and 75 transitions. [2024-06-04 17:29:01,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 171 flow [2024-06-04 17:29:01,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-04 17:29:01,287 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 100 flow [2024-06-04 17:29:01,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-06-04 17:29:01,292 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-06-04 17:29:01,292 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 100 flow [2024-06-04 17:29:01,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:01,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:01,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:01,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 17:29:01,293 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)] === [2024-06-04 17:29:01,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1833111882, now seen corresponding path program 1 times [2024-06-04 17:29:01,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:01,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393142592] [2024-06-04 17:29:01,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393142592] [2024-06-04 17:29:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393142592] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 17:29:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533857649] [2024-06-04 17:29:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:06,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-04 17:29:06,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:06,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-04 17:29:06,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-04 17:29:06,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:29:06,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:06,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:06,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:29:06,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:07,316 INFO L124 PetriNetUnfolderBase]: 1110/1713 cut-off events. [2024-06-04 17:29:07,316 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2024-06-04 17:29:07,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3936 conditions, 1713 events. 1110/1713 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8085 event pairs, 641 based on Foata normal form. 3/1710 useless extension candidates. Maximal degree in co-relation 3921. Up to 1652 conditions per place. [2024-06-04 17:29:07,331 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 40 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2024-06-04 17:29:07,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 240 flow [2024-06-04 17:29:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-04 17:29:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-04 17:29:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-06-04 17:29:07,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573170731707317 [2024-06-04 17:29:07,335 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 100 flow. Second operand 4 states and 94 transitions. [2024-06-04 17:29:07,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 240 flow [2024-06-04 17:29:07,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 17:29:07,339 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 136 flow [2024-06-04 17:29:07,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-06-04 17:29:07,340 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-04 17:29:07,340 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 136 flow [2024-06-04 17:29:07,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:07,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:07,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:07,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 17:29:07,341 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)] === [2024-06-04 17:29:07,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash -991892426, now seen corresponding path program 1 times [2024-06-04 17:29:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867881428] [2024-06-04 17:29:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:07,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:12,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867881428] [2024-06-04 17:29:12,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867881428] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:12,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:12,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 17:29:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962173826] [2024-06-04 17:29:12,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:12,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 17:29:12,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:12,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 17:29:12,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 17:29:12,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:29:12,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:12,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:12,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:29:12,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:13,894 INFO L124 PetriNetUnfolderBase]: 1132/1764 cut-off events. [2024-06-04 17:29:13,894 INFO L125 PetriNetUnfolderBase]: For 989/989 co-relation queries the response was YES. [2024-06-04 17:29:13,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4498 conditions, 1764 events. 1132/1764 cut-off events. For 989/989 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8404 event pairs, 401 based on Foata normal form. 7/1766 useless extension candidates. Maximal degree in co-relation 4481. Up to 1555 conditions per place. [2024-06-04 17:29:13,908 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 56 selfloop transitions, 16 changer transitions 0/77 dead transitions. [2024-06-04 17:29:13,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 77 transitions, 406 flow [2024-06-04 17:29:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 17:29:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 17:29:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-06-04 17:29:13,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6146341463414634 [2024-06-04 17:29:13,914 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 136 flow. Second operand 5 states and 126 transitions. [2024-06-04 17:29:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 77 transitions, 406 flow [2024-06-04 17:29:13,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 77 transitions, 392 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-04 17:29:13,919 INFO L231 Difference]: Finished difference. Result has 50 places, 49 transitions, 235 flow [2024-06-04 17:29:13,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2024-06-04 17:29:13,920 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-06-04 17:29:13,920 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 235 flow [2024-06-04 17:29:13,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:13,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:13,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:13,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 17:29:13,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:29:13,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 274153525, now seen corresponding path program 1 times [2024-06-04 17:29:13,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:13,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965124366] [2024-06-04 17:29:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:13,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:19,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:19,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965124366] [2024-06-04 17:29:19,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965124366] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:19,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:19,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 17:29:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445833635] [2024-06-04 17:29:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 17:29:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 17:29:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-04 17:29:19,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:29:19,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:19,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:19,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:29:19,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:20,411 INFO L124 PetriNetUnfolderBase]: 1214/1910 cut-off events. [2024-06-04 17:29:20,412 INFO L125 PetriNetUnfolderBase]: For 2570/2570 co-relation queries the response was YES. [2024-06-04 17:29:20,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5816 conditions, 1910 events. 1214/1910 cut-off events. For 2570/2570 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9480 event pairs, 273 based on Foata normal form. 26/1931 useless extension candidates. Maximal degree in co-relation 5796. Up to 1519 conditions per place. [2024-06-04 17:29:20,427 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 64 selfloop transitions, 18 changer transitions 0/87 dead transitions. [2024-06-04 17:29:20,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 87 transitions, 523 flow [2024-06-04 17:29:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:29:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:29:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2024-06-04 17:29:20,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5975609756097561 [2024-06-04 17:29:20,432 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 235 flow. Second operand 6 states and 147 transitions. [2024-06-04 17:29:20,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 87 transitions, 523 flow [2024-06-04 17:29:20,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 515 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-06-04 17:29:20,441 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 283 flow [2024-06-04 17:29:20,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-06-04 17:29:20,443 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-04 17:29:20,443 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 283 flow [2024-06-04 17:29:20,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:29:20,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:20,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:20,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 17:29:20,444 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)] === [2024-06-04 17:29:20,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:20,444 INFO L85 PathProgramCache]: Analyzing trace with hash -306618633, now seen corresponding path program 1 times [2024-06-04 17:29:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:20,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45745640] [2024-06-04 17:29:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:29,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:29,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45745640] [2024-06-04 17:29:29,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45745640] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:29,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:29,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 17:29:29,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899851798] [2024-06-04 17:29:29,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:29,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 17:29:29,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:29,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 17:29:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-04 17:29:29,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:29:29,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 283 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) [2024-06-04 17:29:29,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:29,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:29:29,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:30,509 INFO L124 PetriNetUnfolderBase]: 1034/1715 cut-off events. [2024-06-04 17:29:30,510 INFO L125 PetriNetUnfolderBase]: For 3193/3193 co-relation queries the response was YES. [2024-06-04 17:29:30,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5554 conditions, 1715 events. 1034/1715 cut-off events. For 3193/3193 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8808 event pairs, 374 based on Foata normal form. 4/1718 useless extension candidates. Maximal degree in co-relation 5531. Up to 1569 conditions per place. [2024-06-04 17:29:30,525 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 48 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2024-06-04 17:29:30,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 425 flow [2024-06-04 17:29:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 17:29:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 17:29:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-06-04 17:29:30,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-06-04 17:29:30,527 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 283 flow. Second operand 5 states and 100 transitions. [2024-06-04 17:29:30,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 425 flow [2024-06-04 17:29:30,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 381 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-04 17:29:30,536 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 263 flow [2024-06-04 17:29:30,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-06-04 17:29:30,538 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-06-04 17:29:30,538 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 263 flow [2024-06-04 17:29:30,539 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) [2024-06-04 17:29:30,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:30,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-04 17:29:30,544 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)] === [2024-06-04 17:29:30,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash -513407064, now seen corresponding path program 1 times [2024-06-04 17:29:30,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:30,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144779212] [2024-06-04 17:29:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:39,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:39,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144779212] [2024-06-04 17:29:39,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144779212] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:39,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:39,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:29:39,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437354688] [2024-06-04 17:29:39,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:39,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:29:39,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:39,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:29:39,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:29:39,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:29:39,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 263 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) [2024-06-04 17:29:39,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:39,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:29:39,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:40,796 INFO L124 PetriNetUnfolderBase]: 1216/1914 cut-off events. [2024-06-04 17:29:40,796 INFO L125 PetriNetUnfolderBase]: For 4160/4160 co-relation queries the response was YES. [2024-06-04 17:29:40,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6250 conditions, 1914 events. 1216/1914 cut-off events. For 4160/4160 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9437 event pairs, 392 based on Foata normal form. 8/1918 useless extension candidates. Maximal degree in co-relation 6225. Up to 1698 conditions per place. [2024-06-04 17:29:40,811 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 52 selfloop transitions, 19 changer transitions 0/76 dead transitions. [2024-06-04 17:29:40,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 76 transitions, 503 flow [2024-06-04 17:29:40,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:29:40,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:29:40,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2024-06-04 17:29:40,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040650406504065 [2024-06-04 17:29:40,813 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 263 flow. Second operand 6 states and 124 transitions. [2024-06-04 17:29:40,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 76 transitions, 503 flow [2024-06-04 17:29:40,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 481 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-04 17:29:40,819 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 313 flow [2024-06-04 17:29:40,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-06-04 17:29:40,820 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2024-06-04 17:29:40,820 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 313 flow [2024-06-04 17:29:40,820 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) [2024-06-04 17:29:40,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:40,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:40,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-04 17:29:40,821 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)] === [2024-06-04 17:29:40,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1692578784, now seen corresponding path program 2 times [2024-06-04 17:29:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606751831] [2024-06-04 17:29:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:29:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:29:50,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:29:50,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606751831] [2024-06-04 17:29:50,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606751831] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:29:50,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:29:50,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:29:50,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527675171] [2024-06-04 17:29:50,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:29:50,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:29:50,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:29:50,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:29:50,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:29:50,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:29:50,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 313 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) [2024-06-04 17:29:50,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:29:50,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:29:50,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:29:51,472 INFO L124 PetriNetUnfolderBase]: 1184/1850 cut-off events. [2024-06-04 17:29:51,472 INFO L125 PetriNetUnfolderBase]: For 4925/4925 co-relation queries the response was YES. [2024-06-04 17:29:51,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6307 conditions, 1850 events. 1184/1850 cut-off events. For 4925/4925 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8903 event pairs, 380 based on Foata normal form. 4/1853 useless extension candidates. Maximal degree in co-relation 6282. Up to 1650 conditions per place. [2024-06-04 17:29:51,482 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 57 selfloop transitions, 21 changer transitions 0/83 dead transitions. [2024-06-04 17:29:51,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 83 transitions, 543 flow [2024-06-04 17:29:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:29:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:29:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2024-06-04 17:29:51,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47560975609756095 [2024-06-04 17:29:51,484 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 313 flow. Second operand 8 states and 156 transitions. [2024-06-04 17:29:51,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 83 transitions, 543 flow [2024-06-04 17:29:51,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 83 transitions, 514 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-04 17:29:51,490 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 334 flow [2024-06-04 17:29:51,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2024-06-04 17:29:51,491 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-06-04 17:29:51,491 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 334 flow [2024-06-04 17:29:51,491 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) [2024-06-04 17:29:51,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:29:51,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:29:51,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-04 17:29:51,492 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)] === [2024-06-04 17:29:51,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:29:51,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1293915648, now seen corresponding path program 1 times [2024-06-04 17:29:51,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:29:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427571090] [2024-06-04 17:29:51,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:29:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:29:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:00,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:00,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427571090] [2024-06-04 17:30:00,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427571090] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:00,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:00,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:30:00,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853317051] [2024-06-04 17:30:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:00,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:30:00,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:00,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:30:00,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:30:00,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:30:00,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 334 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:00,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:00,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:30:00,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:01,661 INFO L124 PetriNetUnfolderBase]: 1006/1656 cut-off events. [2024-06-04 17:30:01,661 INFO L125 PetriNetUnfolderBase]: For 5168/5168 co-relation queries the response was YES. [2024-06-04 17:30:01,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5683 conditions, 1656 events. 1006/1656 cut-off events. For 5168/5168 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8341 event pairs, 336 based on Foata normal form. 4/1659 useless extension candidates. Maximal degree in co-relation 5657. Up to 1497 conditions per place. [2024-06-04 17:30:01,675 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 59 selfloop transitions, 13 changer transitions 0/78 dead transitions. [2024-06-04 17:30:01,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 78 transitions, 565 flow [2024-06-04 17:30:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:30:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:30:01,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-04 17:30:01,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47038327526132406 [2024-06-04 17:30:01,682 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 334 flow. Second operand 7 states and 135 transitions. [2024-06-04 17:30:01,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 78 transitions, 565 flow [2024-06-04 17:30:01,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 493 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-04 17:30:01,689 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 342 flow [2024-06-04 17:30:01,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=342, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2024-06-04 17:30:01,690 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-06-04 17:30:01,690 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 342 flow [2024-06-04 17:30:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:01,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:01,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-04 17:30:01,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:30:01,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1825711828, now seen corresponding path program 1 times [2024-06-04 17:30:01,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:01,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930750168] [2024-06-04 17:30:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:11,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:11,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930750168] [2024-06-04 17:30:11,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930750168] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:11,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:11,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 17:30:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059817158] [2024-06-04 17:30:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:11,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-04 17:30:11,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-04 17:30:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-04 17:30:11,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:30:11,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:11,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:11,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:30:11,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:12,393 INFO L124 PetriNetUnfolderBase]: 1003/1657 cut-off events. [2024-06-04 17:30:12,393 INFO L125 PetriNetUnfolderBase]: For 5744/5744 co-relation queries the response was YES. [2024-06-04 17:30:12,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5873 conditions, 1657 events. 1003/1657 cut-off events. For 5744/5744 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8370 event pairs, 347 based on Foata normal form. 1/1657 useless extension candidates. Maximal degree in co-relation 5845. Up to 1526 conditions per place. [2024-06-04 17:30:12,403 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 55 selfloop transitions, 8 changer transitions 0/69 dead transitions. [2024-06-04 17:30:12,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 69 transitions, 508 flow [2024-06-04 17:30:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 17:30:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 17:30:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 95 transitions. [2024-06-04 17:30:12,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:30:12,405 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 342 flow. Second operand 5 states and 95 transitions. [2024-06-04 17:30:12,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 69 transitions, 508 flow [2024-06-04 17:30:12,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 69 transitions, 475 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-04 17:30:12,410 INFO L231 Difference]: Finished difference. Result has 64 places, 61 transitions, 357 flow [2024-06-04 17:30:12,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2024-06-04 17:30:12,411 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2024-06-04 17:30:12,411 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 61 transitions, 357 flow [2024-06-04 17:30:12,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:12,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:12,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:12,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-04 17:30:12,412 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)] === [2024-06-04 17:30:12,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:12,412 INFO L85 PathProgramCache]: Analyzing trace with hash -986868379, now seen corresponding path program 1 times [2024-06-04 17:30:12,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:12,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035668476] [2024-06-04 17:30:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:12,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:23,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035668476] [2024-06-04 17:30:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035668476] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:23,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:30:23,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321236364] [2024-06-04 17:30:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:23,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:30:23,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:30:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:30:23,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:30:23,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 357 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:23,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:23,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:30:23,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:24,498 INFO L124 PetriNetUnfolderBase]: 1314/2076 cut-off events. [2024-06-04 17:30:24,499 INFO L125 PetriNetUnfolderBase]: For 10143/10143 co-relation queries the response was YES. [2024-06-04 17:30:24,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7870 conditions, 2076 events. 1314/2076 cut-off events. For 10143/10143 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 10430 event pairs, 284 based on Foata normal form. 16/2088 useless extension candidates. Maximal degree in co-relation 7841. Up to 1419 conditions per place. [2024-06-04 17:30:24,517 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 22 changer transitions 0/98 dead transitions. [2024-06-04 17:30:24,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 98 transitions, 699 flow [2024-06-04 17:30:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:30:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:30:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 146 transitions. [2024-06-04 17:30:24,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087108013937283 [2024-06-04 17:30:24,522 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 357 flow. Second operand 7 states and 146 transitions. [2024-06-04 17:30:24,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 98 transitions, 699 flow [2024-06-04 17:30:24,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 98 transitions, 673 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-06-04 17:30:24,535 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 407 flow [2024-06-04 17:30:24,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=407, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-06-04 17:30:24,538 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-06-04 17:30:24,541 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 407 flow [2024-06-04 17:30:24,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:24,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:24,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:24,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-04 17:30:24,542 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)] === [2024-06-04 17:30:24,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash -36910917, now seen corresponding path program 2 times [2024-06-04 17:30:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193917804] [2024-06-04 17:30:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:34,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193917804] [2024-06-04 17:30:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193917804] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:34,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:30:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212374015] [2024-06-04 17:30:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:34,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:30:34,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:30:34,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:30:34,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:30:34,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 407 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:34,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:34,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:30:34,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:36,104 INFO L124 PetriNetUnfolderBase]: 1356/2155 cut-off events. [2024-06-04 17:30:36,104 INFO L125 PetriNetUnfolderBase]: For 12306/12306 co-relation queries the response was YES. [2024-06-04 17:30:36,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8393 conditions, 2155 events. 1356/2155 cut-off events. For 12306/12306 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11034 event pairs, 418 based on Foata normal form. 24/2175 useless extension candidates. Maximal degree in co-relation 8363. Up to 1806 conditions per place. [2024-06-04 17:30:36,120 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 66 selfloop transitions, 23 changer transitions 0/94 dead transitions. [2024-06-04 17:30:36,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 685 flow [2024-06-04 17:30:36,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:30:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:30:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2024-06-04 17:30:36,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49825783972125437 [2024-06-04 17:30:36,122 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 407 flow. Second operand 7 states and 143 transitions. [2024-06-04 17:30:36,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 685 flow [2024-06-04 17:30:36,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 94 transitions, 655 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-04 17:30:36,134 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 455 flow [2024-06-04 17:30:36,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=455, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-06-04 17:30:36,135 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-06-04 17:30:36,135 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 455 flow [2024-06-04 17:30:36,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:36,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:36,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:36,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-04 17:30:36,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:30:36,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:36,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2121168459, now seen corresponding path program 1 times [2024-06-04 17:30:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:36,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344122612] [2024-06-04 17:30:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:36,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:45,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:45,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344122612] [2024-06-04 17:30:45,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344122612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:30:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980510166] [2024-06-04 17:30:45,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:45,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:30:45,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:30:45,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:30:45,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:30:45,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 455 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:45,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:45,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:30:45,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:46,798 INFO L124 PetriNetUnfolderBase]: 1361/2172 cut-off events. [2024-06-04 17:30:46,798 INFO L125 PetriNetUnfolderBase]: For 12925/12925 co-relation queries the response was YES. [2024-06-04 17:30:46,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8820 conditions, 2172 events. 1361/2172 cut-off events. For 12925/12925 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11062 event pairs, 473 based on Foata normal form. 1/2172 useless extension candidates. Maximal degree in co-relation 8788. Up to 2073 conditions per place. [2024-06-04 17:30:46,817 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 67 selfloop transitions, 11 changer transitions 0/83 dead transitions. [2024-06-04 17:30:46,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 83 transitions, 671 flow [2024-06-04 17:30:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:30:46,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:30:46,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-04 17:30:46,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45121951219512196 [2024-06-04 17:30:46,819 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 455 flow. Second operand 6 states and 111 transitions. [2024-06-04 17:30:46,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 83 transitions, 671 flow [2024-06-04 17:30:46,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 83 transitions, 617 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-06-04 17:30:46,835 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 457 flow [2024-06-04 17:30:46,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2024-06-04 17:30:46,836 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 31 predicate places. [2024-06-04 17:30:46,836 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 457 flow [2024-06-04 17:30:46,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:30:46,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:46,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-04 17:30:46,837 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)] === [2024-06-04 17:30:46,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -364655509, now seen corresponding path program 1 times [2024-06-04 17:30:46,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198877845] [2024-06-04 17:30:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:30:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:30:56,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:30:56,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198877845] [2024-06-04 17:30:56,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198877845] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:30:56,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:30:56,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:30:56,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433833110] [2024-06-04 17:30:56,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:30:56,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:30:56,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:30:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:30:56,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:30:56,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:30:56,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 457 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) [2024-06-04 17:30:56,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:30:56,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:30:56,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:30:57,357 INFO L124 PetriNetUnfolderBase]: 1389/2208 cut-off events. [2024-06-04 17:30:57,357 INFO L125 PetriNetUnfolderBase]: For 14768/14768 co-relation queries the response was YES. [2024-06-04 17:30:57,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9197 conditions, 2208 events. 1389/2208 cut-off events. For 14768/14768 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11248 event pairs, 440 based on Foata normal form. 4/2206 useless extension candidates. Maximal degree in co-relation 9164. Up to 1967 conditions per place. [2024-06-04 17:30:57,371 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 67 selfloop transitions, 28 changer transitions 0/100 dead transitions. [2024-06-04 17:30:57,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 100 transitions, 766 flow [2024-06-04 17:30:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:30:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:30:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-04 17:30:57,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695121951219512 [2024-06-04 17:30:57,375 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 457 flow. Second operand 8 states and 154 transitions. [2024-06-04 17:30:57,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 100 transitions, 766 flow [2024-06-04 17:30:57,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 732 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-06-04 17:30:57,390 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 549 flow [2024-06-04 17:30:57,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=549, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-06-04 17:30:57,390 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 36 predicate places. [2024-06-04 17:30:57,391 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 549 flow [2024-06-04 17:30:57,391 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) [2024-06-04 17:30:57,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:30:57,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:30:57,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-04 17:30:57,391 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:30:57,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:30:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash -358399399, now seen corresponding path program 2 times [2024-06-04 17:30:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:30:57,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840635110] [2024-06-04 17:30:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:30:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:30:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:31:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:31:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:31:06,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840635110] [2024-06-04 17:31:06,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840635110] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:31:06,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:31:06,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:31:06,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644404906] [2024-06-04 17:31:06,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:31:06,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:31:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:31:06,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:31:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:31:06,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:31:06,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 549 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) [2024-06-04 17:31:06,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:31:06,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:31:06,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:31:07,519 INFO L124 PetriNetUnfolderBase]: 1381/2199 cut-off events. [2024-06-04 17:31:07,519 INFO L125 PetriNetUnfolderBase]: For 17265/17265 co-relation queries the response was YES. [2024-06-04 17:31:07,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9639 conditions, 2199 events. 1381/2199 cut-off events. For 17265/17265 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11190 event pairs, 438 based on Foata normal form. 4/2198 useless extension candidates. Maximal degree in co-relation 9604. Up to 1955 conditions per place. [2024-06-04 17:31:07,530 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 68 selfloop transitions, 34 changer transitions 0/107 dead transitions. [2024-06-04 17:31:07,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 107 transitions, 904 flow [2024-06-04 17:31:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:31:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:31:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-04 17:31:07,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695121951219512 [2024-06-04 17:31:07,534 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 549 flow. Second operand 8 states and 154 transitions. [2024-06-04 17:31:07,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 107 transitions, 904 flow [2024-06-04 17:31:07,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 107 transitions, 821 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-06-04 17:31:07,554 INFO L231 Difference]: Finished difference. Result has 82 places, 82 transitions, 644 flow [2024-06-04 17:31:07,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=644, PETRI_PLACES=82, PETRI_TRANSITIONS=82} [2024-06-04 17:31:07,555 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 40 predicate places. [2024-06-04 17:31:07,555 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 82 transitions, 644 flow [2024-06-04 17:31:07,555 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) [2024-06-04 17:31:07,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:31:07,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:31:07,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-04 17:31:07,556 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)] === [2024-06-04 17:31:07,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:31:07,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2087602655, now seen corresponding path program 3 times [2024-06-04 17:31:07,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:31:07,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257254907] [2024-06-04 17:31:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:31:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:31:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:31:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:31:17,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:31:17,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257254907] [2024-06-04 17:31:17,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257254907] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:31:17,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:31:17,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:31:17,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617377328] [2024-06-04 17:31:17,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:31:17,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:31:17,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:31:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:31:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:31:17,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:31:17,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 644 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) [2024-06-04 17:31:17,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:31:17,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:31:17,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:31:18,483 INFO L124 PetriNetUnfolderBase]: 1414/2268 cut-off events. [2024-06-04 17:31:18,484 INFO L125 PetriNetUnfolderBase]: For 19601/19601 co-relation queries the response was YES. [2024-06-04 17:31:18,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10115 conditions, 2268 events. 1414/2268 cut-off events. For 19601/19601 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11771 event pairs, 355 based on Foata normal form. 4/2267 useless extension candidates. Maximal degree in co-relation 10078. Up to 1845 conditions per place. [2024-06-04 17:31:18,498 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 68 selfloop transitions, 41 changer transitions 0/114 dead transitions. [2024-06-04 17:31:18,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 114 transitions, 978 flow [2024-06-04 17:31:18,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:31:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:31:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-04 17:31:18,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4817073170731707 [2024-06-04 17:31:18,504 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 644 flow. Second operand 8 states and 158 transitions. [2024-06-04 17:31:18,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 114 transitions, 978 flow [2024-06-04 17:31:18,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 114 transitions, 914 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-06-04 17:31:18,525 INFO L231 Difference]: Finished difference. Result has 88 places, 85 transitions, 726 flow [2024-06-04 17:31:18,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=726, PETRI_PLACES=88, PETRI_TRANSITIONS=85} [2024-06-04 17:31:18,526 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 46 predicate places. [2024-06-04 17:31:18,526 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 85 transitions, 726 flow [2024-06-04 17:31:18,526 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) [2024-06-04 17:31:18,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:31:18,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:31:18,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-04 17:31:18,527 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:31:18,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:31:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2132596299, now seen corresponding path program 2 times [2024-06-04 17:31:18,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:31:18,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214253123] [2024-06-04 17:31:18,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:31:18,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:31:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:31:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:31:28,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:31:28,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214253123] [2024-06-04 17:31:28,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214253123] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:31:28,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:31:28,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:31:28,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041390802] [2024-06-04 17:31:28,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:31:28,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:31:28,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:31:28,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:31:28,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:31:28,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:31:28,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 85 transitions, 726 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:31:28,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:31:28,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:31:28,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:31:29,313 INFO L124 PetriNetUnfolderBase]: 1411/2278 cut-off events. [2024-06-04 17:31:29,313 INFO L125 PetriNetUnfolderBase]: For 21505/21505 co-relation queries the response was YES. [2024-06-04 17:31:29,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10360 conditions, 2278 events. 1411/2278 cut-off events. For 21505/21505 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11890 event pairs, 435 based on Foata normal form. 1/2278 useless extension candidates. Maximal degree in co-relation 10321. Up to 2153 conditions per place. [2024-06-04 17:31:29,326 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 85 selfloop transitions, 17 changer transitions 0/107 dead transitions. [2024-06-04 17:31:29,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 107 transitions, 1016 flow [2024-06-04 17:31:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:31:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:31:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-04 17:31:29,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-04 17:31:29,328 INFO L175 Difference]: Start difference. First operand has 88 places, 85 transitions, 726 flow. Second operand 7 states and 126 transitions. [2024-06-04 17:31:29,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 107 transitions, 1016 flow [2024-06-04 17:31:29,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 107 transitions, 926 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-06-04 17:31:29,355 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 740 flow [2024-06-04 17:31:29,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=740, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2024-06-04 17:31:29,356 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 49 predicate places. [2024-06-04 17:31:29,356 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 740 flow [2024-06-04 17:31:29,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:31:29,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:31:29,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:31:29,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-04 17:31:29,357 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:31:29,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:31:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1639605209, now seen corresponding path program 1 times [2024-06-04 17:31:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:31:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103404334] [2024-06-04 17:31:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:31:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:31:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:31:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:31:38,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:31:38,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103404334] [2024-06-04 17:31:38,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103404334] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:31:38,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:31:38,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:31:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908957228] [2024-06-04 17:31:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:31:38,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:31:38,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:31:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:31:38,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:31:38,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:31:38,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 740 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) [2024-06-04 17:31:38,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:31:38,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:31:38,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:31:39,792 INFO L124 PetriNetUnfolderBase]: 1338/2213 cut-off events. [2024-06-04 17:31:39,793 INFO L125 PetriNetUnfolderBase]: For 25089/25089 co-relation queries the response was YES. [2024-06-04 17:31:39,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10246 conditions, 2213 events. 1338/2213 cut-off events. For 25089/25089 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11864 event pairs, 406 based on Foata normal form. 3/2213 useless extension candidates. Maximal degree in co-relation 10205. Up to 2018 conditions per place. [2024-06-04 17:31:39,805 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 87 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2024-06-04 17:31:39,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 107 transitions, 990 flow [2024-06-04 17:31:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:31:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:31:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2024-06-04 17:31:39,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:31:39,809 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 740 flow. Second operand 6 states and 114 transitions. [2024-06-04 17:31:39,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 107 transitions, 990 flow [2024-06-04 17:31:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 107 transitions, 952 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-06-04 17:31:39,831 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 754 flow [2024-06-04 17:31:39,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=754, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2024-06-04 17:31:39,832 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 52 predicate places. [2024-06-04 17:31:39,832 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 754 flow [2024-06-04 17:31:39,832 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) [2024-06-04 17:31:39,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:31:39,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:31:39,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-04 17:31:39,833 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:31:39,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:31:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2132602251, now seen corresponding path program 2 times [2024-06-04 17:31:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:31:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998478886] [2024-06-04 17:31:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:31:39,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:31:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:31:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:31:49,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:31:49,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998478886] [2024-06-04 17:31:49,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998478886] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:31:49,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:31:49,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-04 17:31:49,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76572016] [2024-06-04 17:31:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:31:49,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-04 17:31:49,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:31:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-04 17:31:49,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-04 17:31:49,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:31:49,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 754 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) [2024-06-04 17:31:49,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:31:49,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:31:49,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:31:50,547 INFO L124 PetriNetUnfolderBase]: 1337/2215 cut-off events. [2024-06-04 17:31:50,547 INFO L125 PetriNetUnfolderBase]: For 27134/27137 co-relation queries the response was YES. [2024-06-04 17:31:50,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10599 conditions, 2215 events. 1337/2215 cut-off events. For 27134/27137 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11897 event pairs, 409 based on Foata normal form. 5/2216 useless extension candidates. Maximal degree in co-relation 10556. Up to 2007 conditions per place. [2024-06-04 17:31:50,561 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 81 selfloop transitions, 18 changer transitions 0/108 dead transitions. [2024-06-04 17:31:50,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 108 transitions, 1010 flow [2024-06-04 17:31:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 17:31:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 17:31:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2024-06-04 17:31:50,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:31:50,563 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 754 flow. Second operand 6 states and 114 transitions. [2024-06-04 17:31:50,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 108 transitions, 1010 flow [2024-06-04 17:31:50,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 108 transitions, 980 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-04 17:31:50,579 INFO L231 Difference]: Finished difference. Result has 96 places, 97 transitions, 797 flow [2024-06-04 17:31:50,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=797, PETRI_PLACES=96, PETRI_TRANSITIONS=97} [2024-06-04 17:31:50,580 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 54 predicate places. [2024-06-04 17:31:50,580 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 97 transitions, 797 flow [2024-06-04 17:31:50,581 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) [2024-06-04 17:31:50,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:31:50,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:31:50,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-04 17:31:50,581 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:31:50,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:31:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2132610187, now seen corresponding path program 1 times [2024-06-04 17:31:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:31:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186279737] [2024-06-04 17:31:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:31:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:31:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:00,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:00,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186279737] [2024-06-04 17:32:00,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186279737] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:00,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:00,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:32:00,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414123184] [2024-06-04 17:32:00,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:00,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:32:00,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:32:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:32:00,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:00,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 97 transitions, 797 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) [2024-06-04 17:32:00,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:00,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:00,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:01,511 INFO L124 PetriNetUnfolderBase]: 1432/2312 cut-off events. [2024-06-04 17:32:01,511 INFO L125 PetriNetUnfolderBase]: For 28993/28993 co-relation queries the response was YES. [2024-06-04 17:32:01,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11364 conditions, 2312 events. 1432/2312 cut-off events. For 28993/28993 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 12145 event pairs, 436 based on Foata normal form. 1/2312 useless extension candidates. Maximal degree in co-relation 11320. Up to 2198 conditions per place. [2024-06-04 17:32:01,522 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 91 selfloop transitions, 14 changer transitions 0/110 dead transitions. [2024-06-04 17:32:01,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 110 transitions, 1063 flow [2024-06-04 17:32:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:32:01,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:32:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2024-06-04 17:32:01,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-04 17:32:01,526 INFO L175 Difference]: Start difference. First operand has 96 places, 97 transitions, 797 flow. Second operand 7 states and 119 transitions. [2024-06-04 17:32:01,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 110 transitions, 1063 flow [2024-06-04 17:32:01,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 110 transitions, 1014 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-04 17:32:01,545 INFO L231 Difference]: Finished difference. Result has 99 places, 100 transitions, 820 flow [2024-06-04 17:32:01,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=820, PETRI_PLACES=99, PETRI_TRANSITIONS=100} [2024-06-04 17:32:01,545 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 57 predicate places. [2024-06-04 17:32:01,546 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 100 transitions, 820 flow [2024-06-04 17:32:01,546 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) [2024-06-04 17:32:01,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:01,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:01,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-04 17:32:01,546 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:32:01,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1331415537, now seen corresponding path program 1 times [2024-06-04 17:32:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:01,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667102938] [2024-06-04 17:32:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:01,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:11,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:11,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667102938] [2024-06-04 17:32:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667102938] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:11,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:11,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:32:11,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070828872] [2024-06-04 17:32:11,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:11,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:32:11,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:11,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:32:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:32:11,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:11,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 100 transitions, 820 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:11,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:11,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:11,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:12,639 INFO L124 PetriNetUnfolderBase]: 1447/2338 cut-off events. [2024-06-04 17:32:12,639 INFO L125 PetriNetUnfolderBase]: For 31668/31671 co-relation queries the response was YES. [2024-06-04 17:32:12,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11705 conditions, 2338 events. 1447/2338 cut-off events. For 31668/31671 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12354 event pairs, 434 based on Foata normal form. 5/2341 useless extension candidates. Maximal degree in co-relation 11660. Up to 2139 conditions per place. [2024-06-04 17:32:12,654 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 101 selfloop transitions, 24 changer transitions 0/130 dead transitions. [2024-06-04 17:32:12,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 130 transitions, 1188 flow [2024-06-04 17:32:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:32:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:32:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-04 17:32:12,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47735191637630664 [2024-06-04 17:32:12,655 INFO L175 Difference]: Start difference. First operand has 99 places, 100 transitions, 820 flow. Second operand 7 states and 137 transitions. [2024-06-04 17:32:12,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 130 transitions, 1188 flow [2024-06-04 17:32:12,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 130 transitions, 1118 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-06-04 17:32:12,684 INFO L231 Difference]: Finished difference. Result has 101 places, 107 transitions, 882 flow [2024-06-04 17:32:12,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=882, PETRI_PLACES=101, PETRI_TRANSITIONS=107} [2024-06-04 17:32:12,685 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 59 predicate places. [2024-06-04 17:32:12,685 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 107 transitions, 882 flow [2024-06-04 17:32:12,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:12,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:12,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:12,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-04 17:32:12,686 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)] === [2024-06-04 17:32:12,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1154797477, now seen corresponding path program 1 times [2024-06-04 17:32:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:12,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510665709] [2024-06-04 17:32:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:12,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510665709] [2024-06-04 17:32:21,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510665709] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:21,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:32:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765357958] [2024-06-04 17:32:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:21,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:32:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:32:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:32:21,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:21,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 107 transitions, 882 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:32:21,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:21,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:21,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:23,145 INFO L124 PetriNetUnfolderBase]: 1557/2539 cut-off events. [2024-06-04 17:32:23,145 INFO L125 PetriNetUnfolderBase]: For 36888/36888 co-relation queries the response was YES. [2024-06-04 17:32:23,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13110 conditions, 2539 events. 1557/2539 cut-off events. For 36888/36888 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13876 event pairs, 442 based on Foata normal form. 12/2547 useless extension candidates. Maximal degree in co-relation 13064. Up to 1961 conditions per place. [2024-06-04 17:32:23,161 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 103 selfloop transitions, 37 changer transitions 0/145 dead transitions. [2024-06-04 17:32:23,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 145 transitions, 1312 flow [2024-06-04 17:32:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:32:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:32:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 159 transitions. [2024-06-04 17:32:23,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4847560975609756 [2024-06-04 17:32:23,162 INFO L175 Difference]: Start difference. First operand has 101 places, 107 transitions, 882 flow. Second operand 8 states and 159 transitions. [2024-06-04 17:32:23,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 145 transitions, 1312 flow [2024-06-04 17:32:23,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 145 transitions, 1250 flow, removed 17 selfloop flow, removed 4 redundant places. [2024-06-04 17:32:23,189 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 969 flow [2024-06-04 17:32:23,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=969, PETRI_PLACES=106, PETRI_TRANSITIONS=112} [2024-06-04 17:32:23,190 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 64 predicate places. [2024-06-04 17:32:23,190 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 969 flow [2024-06-04 17:32:23,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:32:23,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:23,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:23,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-04 17:32:23,191 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)] === [2024-06-04 17:32:23,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:23,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1331714439, now seen corresponding path program 1 times [2024-06-04 17:32:23,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:23,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877527390] [2024-06-04 17:32:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:23,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:33,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:33,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877527390] [2024-06-04 17:32:33,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877527390] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:33,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:33,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:32:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610115474] [2024-06-04 17:32:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:32:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:32:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:32:33,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:33,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 112 transitions, 969 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:33,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:33,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:33,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:34,132 INFO L124 PetriNetUnfolderBase]: 1562/2546 cut-off events. [2024-06-04 17:32:34,133 INFO L125 PetriNetUnfolderBase]: For 38928/38928 co-relation queries the response was YES. [2024-06-04 17:32:34,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13487 conditions, 2546 events. 1562/2546 cut-off events. For 38928/38928 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13926 event pairs, 452 based on Foata normal form. 1/2546 useless extension candidates. Maximal degree in co-relation 13440. Up to 2399 conditions per place. [2024-06-04 17:32:34,147 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 112 selfloop transitions, 14 changer transitions 0/131 dead transitions. [2024-06-04 17:32:34,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 131 transitions, 1307 flow [2024-06-04 17:32:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:32:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:32:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2024-06-04 17:32:34,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4355400696864111 [2024-06-04 17:32:34,148 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 969 flow. Second operand 7 states and 125 transitions. [2024-06-04 17:32:34,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 131 transitions, 1307 flow [2024-06-04 17:32:34,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 131 transitions, 1256 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-06-04 17:32:34,178 INFO L231 Difference]: Finished difference. Result has 110 places, 115 transitions, 1004 flow [2024-06-04 17:32:34,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1004, PETRI_PLACES=110, PETRI_TRANSITIONS=115} [2024-06-04 17:32:34,178 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 68 predicate places. [2024-06-04 17:32:34,179 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 115 transitions, 1004 flow [2024-06-04 17:32:34,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:34,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:34,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:34,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-04 17:32:34,179 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:32:34,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1674012657, now seen corresponding path program 2 times [2024-06-04 17:32:34,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:34,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288663839] [2024-06-04 17:32:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:34,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:44,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:44,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288663839] [2024-06-04 17:32:44,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288663839] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:44,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:44,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:32:44,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174038489] [2024-06-04 17:32:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:44,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:32:44,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:32:44,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:32:44,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:44,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 115 transitions, 1004 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:44,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:44,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:44,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:45,547 INFO L124 PetriNetUnfolderBase]: 1613/2632 cut-off events. [2024-06-04 17:32:45,547 INFO L125 PetriNetUnfolderBase]: For 42033/42036 co-relation queries the response was YES. [2024-06-04 17:32:45,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14130 conditions, 2632 events. 1613/2632 cut-off events. For 42033/42036 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 14496 event pairs, 457 based on Foata normal form. 5/2635 useless extension candidates. Maximal degree in co-relation 14082. Up to 2359 conditions per place. [2024-06-04 17:32:45,564 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 108 selfloop transitions, 29 changer transitions 0/142 dead transitions. [2024-06-04 17:32:45,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 142 transitions, 1470 flow [2024-06-04 17:32:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:32:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:32:45,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-04 17:32:45,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46689895470383275 [2024-06-04 17:32:45,566 INFO L175 Difference]: Start difference. First operand has 110 places, 115 transitions, 1004 flow. Second operand 7 states and 134 transitions. [2024-06-04 17:32:45,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 142 transitions, 1470 flow [2024-06-04 17:32:45,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 142 transitions, 1406 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-04 17:32:45,598 INFO L231 Difference]: Finished difference. Result has 113 places, 123 transitions, 1120 flow [2024-06-04 17:32:45,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1120, PETRI_PLACES=113, PETRI_TRANSITIONS=123} [2024-06-04 17:32:45,598 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 71 predicate places. [2024-06-04 17:32:45,599 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 123 transitions, 1120 flow [2024-06-04 17:32:45,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:32:45,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:45,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:45,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-04 17:32:45,599 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)] === [2024-06-04 17:32:45,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1877054787, now seen corresponding path program 2 times [2024-06-04 17:32:45,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:45,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094697494] [2024-06-04 17:32:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:45,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:32:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:32:54,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:32:54,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094697494] [2024-06-04 17:32:54,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094697494] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:32:54,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:32:54,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:32:54,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785067267] [2024-06-04 17:32:54,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:32:54,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:32:54,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:32:54,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:32:54,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:32:54,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:32:54,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 123 transitions, 1120 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:32:54,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:32:54,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:32:54,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:32:55,388 INFO L124 PetriNetUnfolderBase]: 1593/2599 cut-off events. [2024-06-04 17:32:55,389 INFO L125 PetriNetUnfolderBase]: For 46897/46897 co-relation queries the response was YES. [2024-06-04 17:32:55,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14515 conditions, 2599 events. 1593/2599 cut-off events. For 46897/46897 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 14176 event pairs, 279 based on Foata normal form. 12/2607 useless extension candidates. Maximal degree in co-relation 14465. Up to 1591 conditions per place. [2024-06-04 17:32:55,410 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 108 selfloop transitions, 40 changer transitions 0/153 dead transitions. [2024-06-04 17:32:55,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 153 transitions, 1516 flow [2024-06-04 17:32:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:32:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:32:55,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2024-06-04 17:32:55,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49825783972125437 [2024-06-04 17:32:55,415 INFO L175 Difference]: Start difference. First operand has 113 places, 123 transitions, 1120 flow. Second operand 7 states and 143 transitions. [2024-06-04 17:32:55,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 153 transitions, 1516 flow [2024-06-04 17:32:55,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 153 transitions, 1447 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-06-04 17:32:55,472 INFO L231 Difference]: Finished difference. Result has 117 places, 123 transitions, 1140 flow [2024-06-04 17:32:55,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1140, PETRI_PLACES=117, PETRI_TRANSITIONS=123} [2024-06-04 17:32:55,473 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 75 predicate places. [2024-06-04 17:32:55,473 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 123 transitions, 1140 flow [2024-06-04 17:32:55,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:32:55,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:32:55,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:32:55,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-04 17:32:55,474 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)] === [2024-06-04 17:32:55,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:32:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash -407207635, now seen corresponding path program 3 times [2024-06-04 17:32:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:32:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963974311] [2024-06-04 17:32:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:32:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:32:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:33:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:33:06,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:33:06,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963974311] [2024-06-04 17:33:06,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963974311] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:33:06,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:33:06,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:33:06,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480327441] [2024-06-04 17:33:06,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:33:06,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:33:06,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:33:06,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:33:06,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:33:06,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:33:06,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 123 transitions, 1140 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:33:06,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:33:06,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:33:06,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:33:07,169 INFO L124 PetriNetUnfolderBase]: 1573/2569 cut-off events. [2024-06-04 17:33:07,169 INFO L125 PetriNetUnfolderBase]: For 48312/48312 co-relation queries the response was YES. [2024-06-04 17:33:07,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14457 conditions, 2569 events. 1573/2569 cut-off events. For 48312/48312 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14060 event pairs, 262 based on Foata normal form. 12/2571 useless extension candidates. Maximal degree in co-relation 14405. Up to 1449 conditions per place. [2024-06-04 17:33:07,188 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 103 selfloop transitions, 39 changer transitions 0/147 dead transitions. [2024-06-04 17:33:07,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 147 transitions, 1478 flow [2024-06-04 17:33:07,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:33:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:33:07,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-04 17:33:07,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47038327526132406 [2024-06-04 17:33:07,191 INFO L175 Difference]: Start difference. First operand has 117 places, 123 transitions, 1140 flow. Second operand 7 states and 135 transitions. [2024-06-04 17:33:07,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 147 transitions, 1478 flow [2024-06-04 17:33:07,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 147 transitions, 1374 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-06-04 17:33:07,230 INFO L231 Difference]: Finished difference. Result has 117 places, 122 transitions, 1086 flow [2024-06-04 17:33:07,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1086, PETRI_PLACES=117, PETRI_TRANSITIONS=122} [2024-06-04 17:33:07,231 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 75 predicate places. [2024-06-04 17:33:07,232 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 122 transitions, 1086 flow [2024-06-04 17:33:07,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:33:07,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:33:07,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:33:07,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-04 17:33:07,233 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)] === [2024-06-04 17:33:07,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:33:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1685989569, now seen corresponding path program 2 times [2024-06-04 17:33:07,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:33:07,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48774715] [2024-06-04 17:33:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:33:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:33:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:33:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:33:17,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:33:17,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48774715] [2024-06-04 17:33:17,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48774715] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:33:17,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:33:17,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:33:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214685851] [2024-06-04 17:33:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:33:17,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:33:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:33:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:33:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:33:17,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:33:17,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 122 transitions, 1086 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) [2024-06-04 17:33:17,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:33:17,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:33:17,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:33:18,357 INFO L124 PetriNetUnfolderBase]: 1578/2574 cut-off events. [2024-06-04 17:33:18,357 INFO L125 PetriNetUnfolderBase]: For 45198/45198 co-relation queries the response was YES. [2024-06-04 17:33:18,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14443 conditions, 2574 events. 1578/2574 cut-off events. For 45198/45198 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14043 event pairs, 430 based on Foata normal form. 1/2574 useless extension candidates. Maximal degree in co-relation 14390. Up to 2425 conditions per place. [2024-06-04 17:33:18,377 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 116 selfloop transitions, 14 changer transitions 0/135 dead transitions. [2024-06-04 17:33:18,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 135 transitions, 1426 flow [2024-06-04 17:33:18,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:33:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:33:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2024-06-04 17:33:18,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41114982578397213 [2024-06-04 17:33:18,378 INFO L175 Difference]: Start difference. First operand has 117 places, 122 transitions, 1086 flow. Second operand 7 states and 118 transitions. [2024-06-04 17:33:18,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 135 transitions, 1426 flow [2024-06-04 17:33:18,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 135 transitions, 1315 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-06-04 17:33:18,422 INFO L231 Difference]: Finished difference. Result has 118 places, 125 transitions, 1071 flow [2024-06-04 17:33:18,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1071, PETRI_PLACES=118, PETRI_TRANSITIONS=125} [2024-06-04 17:33:18,423 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 76 predicate places. [2024-06-04 17:33:18,423 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 125 transitions, 1071 flow [2024-06-04 17:33:18,423 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) [2024-06-04 17:33:18,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:33:18,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:33:18,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-04 17:33:18,423 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:33:18,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:33:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1685977107, now seen corresponding path program 3 times [2024-06-04 17:33:18,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:33:18,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499102314] [2024-06-04 17:33:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:33:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:33:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:33:29,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:33:29,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:33:29,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499102314] [2024-06-04 17:33:29,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499102314] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:33:29,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:33:29,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:33:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807013716] [2024-06-04 17:33:29,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:33:29,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:33:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:33:29,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:33:29,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:33:29,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:33:29,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 125 transitions, 1071 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:33:29,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:33:29,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:33:29,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:33:30,507 INFO L124 PetriNetUnfolderBase]: 1605/2621 cut-off events. [2024-06-04 17:33:30,507 INFO L125 PetriNetUnfolderBase]: For 48520/48523 co-relation queries the response was YES. [2024-06-04 17:33:30,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14579 conditions, 2621 events. 1605/2621 cut-off events. For 48520/48523 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 14390 event pairs, 430 based on Foata normal form. 5/2624 useless extension candidates. Maximal degree in co-relation 14526. Up to 2282 conditions per place. [2024-06-04 17:33:30,522 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 112 selfloop transitions, 43 changer transitions 0/160 dead transitions. [2024-06-04 17:33:30,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 160 transitions, 1687 flow [2024-06-04 17:33:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:33:30,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:33:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-04 17:33:30,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:33:30,523 INFO L175 Difference]: Start difference. First operand has 118 places, 125 transitions, 1071 flow. Second operand 8 states and 152 transitions. [2024-06-04 17:33:30,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 160 transitions, 1687 flow [2024-06-04 17:33:30,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 160 transitions, 1613 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-06-04 17:33:30,564 INFO L231 Difference]: Finished difference. Result has 123 places, 138 transitions, 1278 flow [2024-06-04 17:33:30,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1278, PETRI_PLACES=123, PETRI_TRANSITIONS=138} [2024-06-04 17:33:30,564 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 81 predicate places. [2024-06-04 17:33:30,565 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 138 transitions, 1278 flow [2024-06-04 17:33:30,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:33:30,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:33:30,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:33:30,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-04 17:33:30,565 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)] === [2024-06-04 17:33:30,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:33:30,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1685977479, now seen corresponding path program 3 times [2024-06-04 17:33:30,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:33:30,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880528884] [2024-06-04 17:33:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:33:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:33:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:33:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:33:41,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:33:41,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880528884] [2024-06-04 17:33:41,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880528884] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:33:41,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:33:41,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:33:41,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107471244] [2024-06-04 17:33:41,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:33:41,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:33:41,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:33:41,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:33:41,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:33:41,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:33:41,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 138 transitions, 1278 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:33:41,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:33:41,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:33:41,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:33:42,314 INFO L124 PetriNetUnfolderBase]: 1602/2612 cut-off events. [2024-06-04 17:33:42,314 INFO L125 PetriNetUnfolderBase]: For 53459/53459 co-relation queries the response was YES. [2024-06-04 17:33:42,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15356 conditions, 2612 events. 1602/2612 cut-off events. For 53459/53459 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14231 event pairs, 438 based on Foata normal form. 1/2612 useless extension candidates. Maximal degree in co-relation 15300. Up to 2432 conditions per place. [2024-06-04 17:33:42,332 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 126 selfloop transitions, 27 changer transitions 0/158 dead transitions. [2024-06-04 17:33:42,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 158 transitions, 1692 flow [2024-06-04 17:33:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:33:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:33:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 141 transitions. [2024-06-04 17:33:42,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4298780487804878 [2024-06-04 17:33:42,335 INFO L175 Difference]: Start difference. First operand has 123 places, 138 transitions, 1278 flow. Second operand 8 states and 141 transitions. [2024-06-04 17:33:42,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 158 transitions, 1692 flow [2024-06-04 17:33:42,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 158 transitions, 1603 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-06-04 17:33:42,378 INFO L231 Difference]: Finished difference. Result has 128 places, 141 transitions, 1321 flow [2024-06-04 17:33:42,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1321, PETRI_PLACES=128, PETRI_TRANSITIONS=141} [2024-06-04 17:33:42,379 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 86 predicate places. [2024-06-04 17:33:42,379 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 141 transitions, 1321 flow [2024-06-04 17:33:42,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:33:42,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:33:42,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:33:42,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-04 17:33:42,380 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)] === [2024-06-04 17:33:42,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:33:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1508910315, now seen corresponding path program 1 times [2024-06-04 17:33:42,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:33:42,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140768435] [2024-06-04 17:33:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:33:42,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:33:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:33:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:33:53,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:33:53,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140768435] [2024-06-04 17:33:53,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140768435] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:33:53,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:33:53,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-04 17:33:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286596443] [2024-06-04 17:33:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:33:53,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-04 17:33:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:33:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-04 17:33:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-04 17:33:53,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-04 17:33:53,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 141 transitions, 1321 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) [2024-06-04 17:33:53,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:33:53,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-04 17:33:53,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:33:54,303 INFO L124 PetriNetUnfolderBase]: 1535/2539 cut-off events. [2024-06-04 17:33:54,303 INFO L125 PetriNetUnfolderBase]: For 56903/56911 co-relation queries the response was YES. [2024-06-04 17:33:54,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14863 conditions, 2539 events. 1535/2539 cut-off events. For 56903/56911 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 14169 event pairs, 408 based on Foata normal form. 2/2522 useless extension candidates. Maximal degree in co-relation 14805. Up to 2270 conditions per place. [2024-06-04 17:33:54,322 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 131 selfloop transitions, 14 changer transitions 0/160 dead transitions. [2024-06-04 17:33:54,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 160 transitions, 1693 flow [2024-06-04 17:33:54,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:33:54,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:33:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-04 17:33:54,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4529616724738676 [2024-06-04 17:33:54,324 INFO L175 Difference]: Start difference. First operand has 128 places, 141 transitions, 1321 flow. Second operand 7 states and 130 transitions. [2024-06-04 17:33:54,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 160 transitions, 1693 flow [2024-06-04 17:33:54,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 160 transitions, 1583 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-06-04 17:33:54,368 INFO L231 Difference]: Finished difference. Result has 129 places, 144 transitions, 1293 flow [2024-06-04 17:33:54,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1211, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1293, PETRI_PLACES=129, PETRI_TRANSITIONS=144} [2024-06-04 17:33:54,369 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 87 predicate places. [2024-06-04 17:33:54,369 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 144 transitions, 1293 flow [2024-06-04 17:33:54,369 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) [2024-06-04 17:33:54,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:33:54,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:33:54,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-04 17:33:54,370 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)] === [2024-06-04 17:33:54,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:33:54,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1686408069, now seen corresponding path program 1 times [2024-06-04 17:33:54,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:33:54,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718281944] [2024-06-04 17:33:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:33:54,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:33:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:34:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:34:04,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:34:04,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718281944] [2024-06-04 17:34:04,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718281944] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:34:04,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:34:04,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:34:04,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448063541] [2024-06-04 17:34:04,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:34:04,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:34:04,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:34:04,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:34:04,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:34:04,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:34:04,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 144 transitions, 1293 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:04,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:34:04,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:34:04,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:34:05,619 INFO L124 PetriNetUnfolderBase]: 1591/2597 cut-off events. [2024-06-04 17:34:05,619 INFO L125 PetriNetUnfolderBase]: For 58890/58890 co-relation queries the response was YES. [2024-06-04 17:34:05,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15294 conditions, 2597 events. 1591/2597 cut-off events. For 58890/58890 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 14163 event pairs, 435 based on Foata normal form. 2/2598 useless extension candidates. Maximal degree in co-relation 15235. Up to 2438 conditions per place. [2024-06-04 17:34:05,637 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 137 selfloop transitions, 16 changer transitions 0/158 dead transitions. [2024-06-04 17:34:05,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 158 transitions, 1675 flow [2024-06-04 17:34:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:34:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:34:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-06-04 17:34:05,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2024-06-04 17:34:05,638 INFO L175 Difference]: Start difference. First operand has 129 places, 144 transitions, 1293 flow. Second operand 8 states and 132 transitions. [2024-06-04 17:34:05,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 158 transitions, 1675 flow [2024-06-04 17:34:05,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 1619 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-06-04 17:34:05,680 INFO L231 Difference]: Finished difference. Result has 132 places, 146 transitions, 1326 flow [2024-06-04 17:34:05,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1326, PETRI_PLACES=132, PETRI_TRANSITIONS=146} [2024-06-04 17:34:05,681 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 90 predicate places. [2024-06-04 17:34:05,681 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 146 transitions, 1326 flow [2024-06-04 17:34:05,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:05,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:34:05,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:34:05,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-04 17:34:05,682 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:34:05,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:34:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 475339013, now seen corresponding path program 1 times [2024-06-04 17:34:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:34:05,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011956392] [2024-06-04 17:34:05,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:34:05,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:34:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:34:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:34:15,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:34:15,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011956392] [2024-06-04 17:34:15,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011956392] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:34:15,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:34:15,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:34:15,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234967334] [2024-06-04 17:34:15,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:34:15,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:34:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:34:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:34:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:34:15,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:34:15,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 146 transitions, 1326 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:15,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:34:15,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:34:15,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:34:16,709 INFO L124 PetriNetUnfolderBase]: 1606/2623 cut-off events. [2024-06-04 17:34:16,709 INFO L125 PetriNetUnfolderBase]: For 62641/62644 co-relation queries the response was YES. [2024-06-04 17:34:16,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15618 conditions, 2623 events. 1606/2623 cut-off events. For 62641/62644 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 14347 event pairs, 436 based on Foata normal form. 5/2626 useless extension candidates. Maximal degree in co-relation 15558. Up to 2374 conditions per place. [2024-06-04 17:34:16,727 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 142 selfloop transitions, 28 changer transitions 0/175 dead transitions. [2024-06-04 17:34:16,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 175 transitions, 1810 flow [2024-06-04 17:34:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:34:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:34:16,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-04 17:34:16,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:34:16,728 INFO L175 Difference]: Start difference. First operand has 132 places, 146 transitions, 1326 flow. Second operand 8 states and 152 transitions. [2024-06-04 17:34:16,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 175 transitions, 1810 flow [2024-06-04 17:34:16,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 175 transitions, 1737 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-06-04 17:34:16,778 INFO L231 Difference]: Finished difference. Result has 134 places, 150 transitions, 1394 flow [2024-06-04 17:34:16,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1253, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1394, PETRI_PLACES=134, PETRI_TRANSITIONS=150} [2024-06-04 17:34:16,779 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 92 predicate places. [2024-06-04 17:34:16,779 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 150 transitions, 1394 flow [2024-06-04 17:34:16,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:16,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:34:16,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:34:16,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-04 17:34:16,780 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:34:16,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:34:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash -803082470, now seen corresponding path program 1 times [2024-06-04 17:34:16,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:34:16,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107140237] [2024-06-04 17:34:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:34:16,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:34:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:34:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:34:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:34:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107140237] [2024-06-04 17:34:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107140237] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:34:26,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:34:26,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:34:26,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733132519] [2024-06-04 17:34:26,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:34:26,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:34:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:34:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:34:26,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:34:26,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:34:26,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 150 transitions, 1394 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:34:26,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:34:26,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:34:26,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:34:27,309 INFO L124 PetriNetUnfolderBase]: 1626/2655 cut-off events. [2024-06-04 17:34:27,309 INFO L125 PetriNetUnfolderBase]: For 67713/67716 co-relation queries the response was YES. [2024-06-04 17:34:27,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16332 conditions, 2655 events. 1626/2655 cut-off events. For 67713/67716 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14557 event pairs, 434 based on Foata normal form. 6/2659 useless extension candidates. Maximal degree in co-relation 16271. Up to 2410 conditions per place. [2024-06-04 17:34:27,337 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 146 selfloop transitions, 23 changer transitions 0/174 dead transitions. [2024-06-04 17:34:27,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 174 transitions, 1848 flow [2024-06-04 17:34:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:34:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:34:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-04 17:34:27,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:34:27,339 INFO L175 Difference]: Start difference. First operand has 134 places, 150 transitions, 1394 flow. Second operand 7 states and 133 transitions. [2024-06-04 17:34:27,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 174 transitions, 1848 flow [2024-06-04 17:34:27,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 174 transitions, 1735 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-06-04 17:34:27,392 INFO L231 Difference]: Finished difference. Result has 135 places, 154 transitions, 1402 flow [2024-06-04 17:34:27,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1281, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1402, PETRI_PLACES=135, PETRI_TRANSITIONS=154} [2024-06-04 17:34:27,393 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 93 predicate places. [2024-06-04 17:34:27,393 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 154 transitions, 1402 flow [2024-06-04 17:34:27,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:34:27,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:34:27,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:34:27,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-04 17:34:27,393 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:34:27,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:34:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1666531606, now seen corresponding path program 2 times [2024-06-04 17:34:27,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:34:27,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324079501] [2024-06-04 17:34:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:34:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:34:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:34:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:34:37,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:34:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324079501] [2024-06-04 17:34:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324079501] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:34:37,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:34:37,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:34:37,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905922924] [2024-06-04 17:34:37,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:34:37,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:34:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:34:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:34:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:34:37,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:34:37,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 154 transitions, 1402 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:34:37,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:34:37,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:34:37,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:34:38,185 INFO L124 PetriNetUnfolderBase]: 1630/2665 cut-off events. [2024-06-04 17:34:38,186 INFO L125 PetriNetUnfolderBase]: For 70664/70667 co-relation queries the response was YES. [2024-06-04 17:34:38,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16399 conditions, 2665 events. 1630/2665 cut-off events. For 70664/70667 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14686 event pairs, 433 based on Foata normal form. 6/2669 useless extension candidates. Maximal degree in co-relation 16337. Up to 2359 conditions per place. [2024-06-04 17:34:38,213 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 136 selfloop transitions, 35 changer transitions 0/176 dead transitions. [2024-06-04 17:34:38,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 176 transitions, 1920 flow [2024-06-04 17:34:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-04 17:34:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-04 17:34:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-04 17:34:38,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:34:38,215 INFO L175 Difference]: Start difference. First operand has 135 places, 154 transitions, 1402 flow. Second operand 7 states and 133 transitions. [2024-06-04 17:34:38,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 176 transitions, 1920 flow [2024-06-04 17:34:38,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 176 transitions, 1864 flow, removed 16 selfloop flow, removed 3 redundant places. [2024-06-04 17:34:38,274 INFO L231 Difference]: Finished difference. Result has 139 places, 157 transitions, 1483 flow [2024-06-04 17:34:38,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1346, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1483, PETRI_PLACES=139, PETRI_TRANSITIONS=157} [2024-06-04 17:34:38,274 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 97 predicate places. [2024-06-04 17:34:38,274 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 157 transitions, 1483 flow [2024-06-04 17:34:38,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:34:38,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:34:38,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:34:38,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-04 17:34:38,275 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:34:38,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:34:38,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1666523670, now seen corresponding path program 1 times [2024-06-04 17:34:38,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:34:38,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142216891] [2024-06-04 17:34:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:34:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:34:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:34:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:34:49,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:34:49,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142216891] [2024-06-04 17:34:49,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142216891] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:34:49,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:34:49,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:34:49,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707509581] [2024-06-04 17:34:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:34:49,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:34:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:34:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:34:49,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:34:50,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:34:50,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 157 transitions, 1483 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:50,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:34:50,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:34:50,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:34:51,009 INFO L124 PetriNetUnfolderBase]: 1635/2669 cut-off events. [2024-06-04 17:34:51,009 INFO L125 PetriNetUnfolderBase]: For 73295/73295 co-relation queries the response was YES. [2024-06-04 17:34:51,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16615 conditions, 2669 events. 1635/2669 cut-off events. For 73295/73295 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14661 event pairs, 430 based on Foata normal form. 1/2669 useless extension candidates. Maximal degree in co-relation 16552. Up to 2491 conditions per place. [2024-06-04 17:34:51,031 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 155 selfloop transitions, 17 changer transitions 0/177 dead transitions. [2024-06-04 17:34:51,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 177 transitions, 1935 flow [2024-06-04 17:34:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:34:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:34:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2024-06-04 17:34:51,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42073170731707316 [2024-06-04 17:34:51,032 INFO L175 Difference]: Start difference. First operand has 139 places, 157 transitions, 1483 flow. Second operand 8 states and 138 transitions. [2024-06-04 17:34:51,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 177 transitions, 1935 flow [2024-06-04 17:34:51,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 177 transitions, 1854 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-04 17:34:51,108 INFO L231 Difference]: Finished difference. Result has 143 places, 160 transitions, 1514 flow [2024-06-04 17:34:51,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1514, PETRI_PLACES=143, PETRI_TRANSITIONS=160} [2024-06-04 17:34:51,109 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 101 predicate places. [2024-06-04 17:34:51,109 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 160 transitions, 1514 flow [2024-06-04 17:34:51,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:34:51,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:34:51,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:34:51,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-04 17:34:51,110 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:34:51,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:34:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1666524073, now seen corresponding path program 2 times [2024-06-04 17:34:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:34:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527808306] [2024-06-04 17:34:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:34:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:34:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:01,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:01,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527808306] [2024-06-04 17:35:01,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527808306] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:01,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:01,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:35:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95763417] [2024-06-04 17:35:01,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:01,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:35:01,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:01,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:35:01,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:35:01,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:35:01,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 160 transitions, 1514 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:35:01,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:35:01,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:35:01,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:35:02,643 INFO L124 PetriNetUnfolderBase]: 1694/2762 cut-off events. [2024-06-04 17:35:02,643 INFO L125 PetriNetUnfolderBase]: For 81270/81273 co-relation queries the response was YES. [2024-06-04 17:35:02,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17599 conditions, 2762 events. 1694/2762 cut-off events. For 81270/81273 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 15295 event pairs, 427 based on Foata normal form. 5/2765 useless extension candidates. Maximal degree in co-relation 17535. Up to 2365 conditions per place. [2024-06-04 17:35:02,662 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 142 selfloop transitions, 44 changer transitions 0/191 dead transitions. [2024-06-04 17:35:02,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 191 transitions, 2278 flow [2024-06-04 17:35:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:35:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:35:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-04 17:35:02,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603658536585366 [2024-06-04 17:35:02,664 INFO L175 Difference]: Start difference. First operand has 143 places, 160 transitions, 1514 flow. Second operand 8 states and 151 transitions. [2024-06-04 17:35:02,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 191 transitions, 2278 flow [2024-06-04 17:35:02,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 191 transitions, 2188 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-06-04 17:35:02,721 INFO L231 Difference]: Finished difference. Result has 146 places, 168 transitions, 1700 flow [2024-06-04 17:35:02,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1700, PETRI_PLACES=146, PETRI_TRANSITIONS=168} [2024-06-04 17:35:02,721 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 104 predicate places. [2024-06-04 17:35:02,721 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 168 transitions, 1700 flow [2024-06-04 17:35:02,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:35:02,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:35:02,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:35:02,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-04 17:35:02,722 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:35:02,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:35:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 484593443, now seen corresponding path program 3 times [2024-06-04 17:35:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:35:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004580971] [2024-06-04 17:35:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:35:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:35:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:12,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004580971] [2024-06-04 17:35:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004580971] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:12,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:12,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:35:12,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388184141] [2024-06-04 17:35:12,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:12,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:35:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:35:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:35:12,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:35:12,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 168 transitions, 1700 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:35:12,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:35:12,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:35:12,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:35:13,827 INFO L124 PetriNetUnfolderBase]: 1705/2780 cut-off events. [2024-06-04 17:35:13,827 INFO L125 PetriNetUnfolderBase]: For 88790/88793 co-relation queries the response was YES. [2024-06-04 17:35:13,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18444 conditions, 2780 events. 1705/2780 cut-off events. For 88790/88793 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15455 event pairs, 432 based on Foata normal form. 5/2783 useless extension candidates. Maximal degree in co-relation 18378. Up to 2378 conditions per place. [2024-06-04 17:35:13,849 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 140 selfloop transitions, 48 changer transitions 0/193 dead transitions. [2024-06-04 17:35:13,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 193 transitions, 2303 flow [2024-06-04 17:35:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:35:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:35:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-04 17:35:13,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603658536585366 [2024-06-04 17:35:13,850 INFO L175 Difference]: Start difference. First operand has 146 places, 168 transitions, 1700 flow. Second operand 8 states and 151 transitions. [2024-06-04 17:35:13,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 193 transitions, 2303 flow [2024-06-04 17:35:13,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 193 transitions, 2171 flow, removed 47 selfloop flow, removed 4 redundant places. [2024-06-04 17:35:13,916 INFO L231 Difference]: Finished difference. Result has 150 places, 172 transitions, 1764 flow [2024-06-04 17:35:13,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1764, PETRI_PLACES=150, PETRI_TRANSITIONS=172} [2024-06-04 17:35:13,917 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 108 predicate places. [2024-06-04 17:35:13,917 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 172 transitions, 1764 flow [2024-06-04 17:35:13,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:35:13,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:35:13,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:35:13,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-04 17:35:13,918 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:35:13,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:35:13,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1276748040, now seen corresponding path program 3 times [2024-06-04 17:35:13,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:35:13,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336770712] [2024-06-04 17:35:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:35:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:35:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:25,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:25,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336770712] [2024-06-04 17:35:25,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336770712] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:25,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:25,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:35:25,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895444722] [2024-06-04 17:35:25,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:25,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:35:25,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:35:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:35:25,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:35:25,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 172 transitions, 1764 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:25,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:35:25,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:35:25,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:35:26,216 INFO L124 PetriNetUnfolderBase]: 1691/2764 cut-off events. [2024-06-04 17:35:26,217 INFO L125 PetriNetUnfolderBase]: For 91631/91631 co-relation queries the response was YES. [2024-06-04 17:35:26,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18381 conditions, 2764 events. 1691/2764 cut-off events. For 91631/91631 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15512 event pairs, 795 based on Foata normal form. 2/2764 useless extension candidates. Maximal degree in co-relation 18313. Up to 2569 conditions per place. [2024-06-04 17:35:26,237 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 169 selfloop transitions, 16 changer transitions 0/190 dead transitions. [2024-06-04 17:35:26,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 190 transitions, 2195 flow [2024-06-04 17:35:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:35:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:35:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2024-06-04 17:35:26,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-04 17:35:26,238 INFO L175 Difference]: Start difference. First operand has 150 places, 172 transitions, 1764 flow. Second operand 8 states and 136 transitions. [2024-06-04 17:35:26,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 190 transitions, 2195 flow [2024-06-04 17:35:26,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 190 transitions, 2045 flow, removed 42 selfloop flow, removed 5 redundant places. [2024-06-04 17:35:26,307 INFO L231 Difference]: Finished difference. Result has 154 places, 174 transitions, 1672 flow [2024-06-04 17:35:26,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1672, PETRI_PLACES=154, PETRI_TRANSITIONS=174} [2024-06-04 17:35:26,308 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 112 predicate places. [2024-06-04 17:35:26,308 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 174 transitions, 1672 flow [2024-06-04 17:35:26,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:26,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:35:26,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:35:26,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-04 17:35:26,309 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)] === [2024-06-04 17:35:26,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:35:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -464707862, now seen corresponding path program 4 times [2024-06-04 17:35:26,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:35:26,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895839640] [2024-06-04 17:35:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:35:26,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:35:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:36,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:36,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:36,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895839640] [2024-06-04 17:35:36,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895839640] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:36,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:36,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:35:36,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375455463] [2024-06-04 17:35:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:35:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:36,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:35:36,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:35:36,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:35:36,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 174 transitions, 1672 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:36,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:35:36,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:35:36,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:35:37,694 INFO L124 PetriNetUnfolderBase]: 1701/2772 cut-off events. [2024-06-04 17:35:37,695 INFO L125 PetriNetUnfolderBase]: For 94343/94343 co-relation queries the response was YES. [2024-06-04 17:35:37,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18344 conditions, 2772 events. 1701/2772 cut-off events. For 94343/94343 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 15411 event pairs, 438 based on Foata normal form. 2/2772 useless extension candidates. Maximal degree in co-relation 18274. Up to 2495 conditions per place. [2024-06-04 17:35:37,718 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 163 selfloop transitions, 35 changer transitions 0/203 dead transitions. [2024-06-04 17:35:37,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 203 transitions, 2203 flow [2024-06-04 17:35:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:35:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:35:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-04 17:35:37,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44715447154471544 [2024-06-04 17:35:37,721 INFO L175 Difference]: Start difference. First operand has 154 places, 174 transitions, 1672 flow. Second operand 9 states and 165 transitions. [2024-06-04 17:35:37,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 203 transitions, 2203 flow [2024-06-04 17:35:37,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 203 transitions, 2077 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-06-04 17:35:37,800 INFO L231 Difference]: Finished difference. Result has 154 places, 178 transitions, 1702 flow [2024-06-04 17:35:37,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1702, PETRI_PLACES=154, PETRI_TRANSITIONS=178} [2024-06-04 17:35:37,800 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 112 predicate places. [2024-06-04 17:35:37,801 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 178 transitions, 1702 flow [2024-06-04 17:35:37,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:37,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:35:37,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:35:37,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-04 17:35:37,801 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:35:37,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:35:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash 725688042, now seen corresponding path program 5 times [2024-06-04 17:35:37,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:35:37,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448289516] [2024-06-04 17:35:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:35:37,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:35:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:47,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:47,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448289516] [2024-06-04 17:35:47,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448289516] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:47,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:47,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:35:47,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198883961] [2024-06-04 17:35:47,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:47,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:35:47,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:47,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:35:47,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:35:47,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:35:47,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 178 transitions, 1702 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:47,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:35:47,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:35:47,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:35:48,711 INFO L124 PetriNetUnfolderBase]: 1705/2787 cut-off events. [2024-06-04 17:35:48,712 INFO L125 PetriNetUnfolderBase]: For 98824/98827 co-relation queries the response was YES. [2024-06-04 17:35:48,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18535 conditions, 2787 events. 1705/2787 cut-off events. For 98824/98827 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 15609 event pairs, 445 based on Foata normal form. 6/2790 useless extension candidates. Maximal degree in co-relation 18463. Up to 2399 conditions per place. [2024-06-04 17:35:48,730 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 142 selfloop transitions, 54 changer transitions 0/201 dead transitions. [2024-06-04 17:35:48,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 201 transitions, 2288 flow [2024-06-04 17:35:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:35:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:35:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-06-04 17:35:48,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603658536585366 [2024-06-04 17:35:48,732 INFO L175 Difference]: Start difference. First operand has 154 places, 178 transitions, 1702 flow. Second operand 8 states and 151 transitions. [2024-06-04 17:35:48,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 201 transitions, 2288 flow [2024-06-04 17:35:48,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 201 transitions, 2199 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-06-04 17:35:48,808 INFO L231 Difference]: Finished difference. Result has 156 places, 181 transitions, 1783 flow [2024-06-04 17:35:48,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1613, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1783, PETRI_PLACES=156, PETRI_TRANSITIONS=181} [2024-06-04 17:35:48,808 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 114 predicate places. [2024-06-04 17:35:48,809 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 181 transitions, 1783 flow [2024-06-04 17:35:48,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:35:48,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:35:48,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:35:48,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-04 17:35:48,809 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:35:48,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:35:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash -320817332, now seen corresponding path program 6 times [2024-06-04 17:35:48,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:35:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226994341] [2024-06-04 17:35:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:35:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:35:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:35:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:35:59,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:35:59,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226994341] [2024-06-04 17:35:59,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226994341] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:35:59,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:35:59,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:35:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000117635] [2024-06-04 17:35:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:35:59,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:35:59,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:35:59,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:35:59,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:36:00,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:00,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 181 transitions, 1783 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:36:00,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:00,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:00,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:01,029 INFO L124 PetriNetUnfolderBase]: 1695/2771 cut-off events. [2024-06-04 17:36:01,029 INFO L125 PetriNetUnfolderBase]: For 100332/100335 co-relation queries the response was YES. [2024-06-04 17:36:01,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18528 conditions, 2771 events. 1695/2771 cut-off events. For 100332/100335 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15484 event pairs, 449 based on Foata normal form. 4/2772 useless extension candidates. Maximal degree in co-relation 18455. Up to 2391 conditions per place. [2024-06-04 17:36:01,054 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 137 selfloop transitions, 58 changer transitions 0/200 dead transitions. [2024-06-04 17:36:01,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 200 transitions, 2239 flow [2024-06-04 17:36:01,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:36:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:36:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2024-06-04 17:36:01,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45426829268292684 [2024-06-04 17:36:01,057 INFO L175 Difference]: Start difference. First operand has 156 places, 181 transitions, 1783 flow. Second operand 8 states and 149 transitions. [2024-06-04 17:36:01,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 200 transitions, 2239 flow [2024-06-04 17:36:01,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 200 transitions, 2087 flow, removed 32 selfloop flow, removed 5 redundant places. [2024-06-04 17:36:01,152 INFO L231 Difference]: Finished difference. Result has 159 places, 181 transitions, 1753 flow [2024-06-04 17:36:01,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1631, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1753, PETRI_PLACES=159, PETRI_TRANSITIONS=181} [2024-06-04 17:36:01,153 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 117 predicate places. [2024-06-04 17:36:01,153 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 181 transitions, 1753 flow [2024-06-04 17:36:01,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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) [2024-06-04 17:36:01,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:01,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:01,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-04 17:36:01,154 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:01,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:01,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1351036980, now seen corresponding path program 2 times [2024-06-04 17:36:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:01,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384322084] [2024-06-04 17:36:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:01,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:36:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:36:11,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:36:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384322084] [2024-06-04 17:36:11,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384322084] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:36:11,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:36:11,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:36:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857356944] [2024-06-04 17:36:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:36:11,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:36:11,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:36:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:36:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:36:11,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:11,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 181 transitions, 1753 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:11,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:11,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:11,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:12,744 INFO L124 PetriNetUnfolderBase]: 1700/2770 cut-off events. [2024-06-04 17:36:12,745 INFO L125 PetriNetUnfolderBase]: For 103290/103298 co-relation queries the response was YES. [2024-06-04 17:36:12,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18622 conditions, 2770 events. 1700/2770 cut-off events. For 103290/103298 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 15346 event pairs, 439 based on Foata normal form. 9/2778 useless extension candidates. Maximal degree in co-relation 18548. Up to 2567 conditions per place. [2024-06-04 17:36:12,769 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 165 selfloop transitions, 31 changer transitions 0/201 dead transitions. [2024-06-04 17:36:12,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 201 transitions, 2267 flow [2024-06-04 17:36:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:36:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:36:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 155 transitions. [2024-06-04 17:36:12,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42005420054200543 [2024-06-04 17:36:12,771 INFO L175 Difference]: Start difference. First operand has 159 places, 181 transitions, 1753 flow. Second operand 9 states and 155 transitions. [2024-06-04 17:36:12,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 201 transitions, 2267 flow [2024-06-04 17:36:12,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 201 transitions, 2097 flow, removed 10 selfloop flow, removed 9 redundant places. [2024-06-04 17:36:12,858 INFO L231 Difference]: Finished difference. Result has 159 places, 184 transitions, 1735 flow [2024-06-04 17:36:12,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1583, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1735, PETRI_PLACES=159, PETRI_TRANSITIONS=184} [2024-06-04 17:36:12,859 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 117 predicate places. [2024-06-04 17:36:12,859 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 184 transitions, 1735 flow [2024-06-04 17:36:12,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:12,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:12,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:12,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-04 17:36:12,859 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:12,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:12,860 INFO L85 PathProgramCache]: Analyzing trace with hash 738582988, now seen corresponding path program 3 times [2024-06-04 17:36:12,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:12,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651582755] [2024-06-04 17:36:12,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:12,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:36:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:36:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:36:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651582755] [2024-06-04 17:36:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651582755] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:36:23,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:36:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:36:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721984574] [2024-06-04 17:36:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:36:23,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:36:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:36:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:36:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:36:23,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:23,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 184 transitions, 1735 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:23,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:23,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:23,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:24,654 INFO L124 PetriNetUnfolderBase]: 1705/2782 cut-off events. [2024-06-04 17:36:24,654 INFO L125 PetriNetUnfolderBase]: For 108549/108549 co-relation queries the response was YES. [2024-06-04 17:36:24,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18754 conditions, 2782 events. 1705/2782 cut-off events. For 108549/108549 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 15594 event pairs, 794 based on Foata normal form. 1/2781 useless extension candidates. Maximal degree in co-relation 18681. Up to 2601 conditions per place. [2024-06-04 17:36:24,676 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 174 selfloop transitions, 18 changer transitions 0/197 dead transitions. [2024-06-04 17:36:24,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 197 transitions, 2227 flow [2024-06-04 17:36:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:36:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:36:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 132 transitions. [2024-06-04 17:36:24,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2024-06-04 17:36:24,677 INFO L175 Difference]: Start difference. First operand has 159 places, 184 transitions, 1735 flow. Second operand 8 states and 132 transitions. [2024-06-04 17:36:24,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 197 transitions, 2227 flow [2024-06-04 17:36:24,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 197 transitions, 2097 flow, removed 36 selfloop flow, removed 7 redundant places. [2024-06-04 17:36:24,776 INFO L231 Difference]: Finished difference. Result has 160 places, 187 transitions, 1737 flow [2024-06-04 17:36:24,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1605, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1737, PETRI_PLACES=160, PETRI_TRANSITIONS=187} [2024-06-04 17:36:24,777 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 118 predicate places. [2024-06-04 17:36:24,777 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 187 transitions, 1737 flow [2024-06-04 17:36:24,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:24,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:24,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:24,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-04 17:36:24,780 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:24,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:24,781 INFO L85 PathProgramCache]: Analyzing trace with hash 725684415, now seen corresponding path program 4 times [2024-06-04 17:36:24,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:24,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094140545] [2024-06-04 17:36:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:24,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:36:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:36:34,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:36:34,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094140545] [2024-06-04 17:36:34,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094140545] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:36:34,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:36:34,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:36:34,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677206738] [2024-06-04 17:36:34,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:36:34,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:36:34,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:36:34,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:36:34,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:36:34,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:34,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 187 transitions, 1737 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:34,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:34,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:34,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:35,801 INFO L124 PetriNetUnfolderBase]: 1752/2842 cut-off events. [2024-06-04 17:36:35,801 INFO L125 PetriNetUnfolderBase]: For 121033/121036 co-relation queries the response was YES. [2024-06-04 17:36:35,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19682 conditions, 2842 events. 1752/2842 cut-off events. For 121033/121036 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 15809 event pairs, 455 based on Foata normal form. 5/2844 useless extension candidates. Maximal degree in co-relation 19608. Up to 2285 conditions per place. [2024-06-04 17:36:35,822 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 138 selfloop transitions, 80 changer transitions 0/223 dead transitions. [2024-06-04 17:36:35,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 223 transitions, 2775 flow [2024-06-04 17:36:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:36:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:36:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-04 17:36:35,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2024-06-04 17:36:35,823 INFO L175 Difference]: Start difference. First operand has 160 places, 187 transitions, 1737 flow. Second operand 9 states and 172 transitions. [2024-06-04 17:36:35,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 223 transitions, 2775 flow [2024-06-04 17:36:35,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 223 transitions, 2665 flow, removed 39 selfloop flow, removed 6 redundant places. [2024-06-04 17:36:35,907 INFO L231 Difference]: Finished difference. Result has 164 places, 199 transitions, 2103 flow [2024-06-04 17:36:35,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2103, PETRI_PLACES=164, PETRI_TRANSITIONS=199} [2024-06-04 17:36:35,908 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 122 predicate places. [2024-06-04 17:36:35,908 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 199 transitions, 2103 flow [2024-06-04 17:36:35,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:35,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:35,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:35,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-04 17:36:35,908 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:35,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash 725695575, now seen corresponding path program 5 times [2024-06-04 17:36:35,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:35,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124475062] [2024-06-04 17:36:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:35,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:36:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:36:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:36:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124475062] [2024-06-04 17:36:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124475062] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:36:45,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:36:45,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:36:45,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092629663] [2024-06-04 17:36:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:36:45,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:36:45,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:36:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:36:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:36:45,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:45,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 199 transitions, 2103 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:45,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:45,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:45,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:46,917 INFO L124 PetriNetUnfolderBase]: 1803/2925 cut-off events. [2024-06-04 17:36:46,918 INFO L125 PetriNetUnfolderBase]: For 133031/133034 co-relation queries the response was YES. [2024-06-04 17:36:46,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21408 conditions, 2925 events. 1803/2925 cut-off events. For 133031/133034 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16346 event pairs, 457 based on Foata normal form. 5/2927 useless extension candidates. Maximal degree in co-relation 21332. Up to 2328 conditions per place. [2024-06-04 17:36:46,943 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 143 selfloop transitions, 83 changer transitions 0/231 dead transitions. [2024-06-04 17:36:46,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 231 transitions, 3090 flow [2024-06-04 17:36:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:36:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:36:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-04 17:36:46,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2024-06-04 17:36:46,944 INFO L175 Difference]: Start difference. First operand has 164 places, 199 transitions, 2103 flow. Second operand 9 states and 172 transitions. [2024-06-04 17:36:46,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 231 transitions, 3090 flow [2024-06-04 17:36:47,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 231 transitions, 2851 flow, removed 73 selfloop flow, removed 5 redundant places. [2024-06-04 17:36:47,068 INFO L231 Difference]: Finished difference. Result has 169 places, 207 transitions, 2258 flow [2024-06-04 17:36:47,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1890, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2258, PETRI_PLACES=169, PETRI_TRANSITIONS=207} [2024-06-04 17:36:47,068 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 127 predicate places. [2024-06-04 17:36:47,068 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 207 transitions, 2258 flow [2024-06-04 17:36:47,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:47,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:47,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:47,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-04 17:36:47,069 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:47,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 738582585, now seen corresponding path program 6 times [2024-06-04 17:36:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:47,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038617897] [2024-06-04 17:36:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:36:58,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:36:58,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:36:58,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038617897] [2024-06-04 17:36:58,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038617897] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:36:58,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:36:58,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:36:58,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080333589] [2024-06-04 17:36:58,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:36:58,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:36:58,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:36:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:36:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:36:58,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:36:58,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 207 transitions, 2258 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:58,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:36:58,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:36:58,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:36:59,449 INFO L124 PetriNetUnfolderBase]: 1798/2935 cut-off events. [2024-06-04 17:36:59,449 INFO L125 PetriNetUnfolderBase]: For 132690/132693 co-relation queries the response was YES. [2024-06-04 17:36:59,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20970 conditions, 2935 events. 1798/2935 cut-off events. For 132690/132693 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16731 event pairs, 801 based on Foata normal form. 5/2937 useless extension candidates. Maximal degree in co-relation 20892. Up to 2655 conditions per place. [2024-06-04 17:36:59,475 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 183 selfloop transitions, 34 changer transitions 0/222 dead transitions. [2024-06-04 17:36:59,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 222 transitions, 2836 flow [2024-06-04 17:36:59,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:36:59,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:36:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 143 transitions. [2024-06-04 17:36:59,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43597560975609756 [2024-06-04 17:36:59,477 INFO L175 Difference]: Start difference. First operand has 169 places, 207 transitions, 2258 flow. Second operand 8 states and 143 transitions. [2024-06-04 17:36:59,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 222 transitions, 2836 flow [2024-06-04 17:36:59,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 222 transitions, 2563 flow, removed 76 selfloop flow, removed 5 redundant places. [2024-06-04 17:36:59,595 INFO L231 Difference]: Finished difference. Result has 172 places, 207 transitions, 2061 flow [2024-06-04 17:36:59,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1985, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2061, PETRI_PLACES=172, PETRI_TRANSITIONS=207} [2024-06-04 17:36:59,595 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 130 predicate places. [2024-06-04 17:36:59,595 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 207 transitions, 2061 flow [2024-06-04 17:36:59,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:36:59,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:36:59,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:36:59,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-04 17:36:59,596 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:36:59,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:36:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash 739028458, now seen corresponding path program 4 times [2024-06-04 17:36:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:36:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803231325] [2024-06-04 17:36:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:36:59,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:36:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:37:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:37:10,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:37:10,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803231325] [2024-06-04 17:37:10,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803231325] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:37:10,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:37:10,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:37:10,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401437269] [2024-06-04 17:37:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:37:10,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:37:10,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:37:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:37:10,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:37:10,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:37:10,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 207 transitions, 2061 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:10,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:37:10,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:37:10,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:37:11,505 INFO L124 PetriNetUnfolderBase]: 1795/2926 cut-off events. [2024-06-04 17:37:11,505 INFO L125 PetriNetUnfolderBase]: For 135184/135184 co-relation queries the response was YES. [2024-06-04 17:37:11,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20515 conditions, 2926 events. 1795/2926 cut-off events. For 135184/135184 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 16603 event pairs, 809 based on Foata normal form. 1/2925 useless extension candidates. Maximal degree in co-relation 20436. Up to 2721 conditions per place. [2024-06-04 17:37:11,529 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 192 selfloop transitions, 24 changer transitions 0/221 dead transitions. [2024-06-04 17:37:11,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 221 transitions, 2611 flow [2024-06-04 17:37:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:37:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:37:11,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2024-06-04 17:37:11,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956639566395664 [2024-06-04 17:37:11,530 INFO L175 Difference]: Start difference. First operand has 172 places, 207 transitions, 2061 flow. Second operand 9 states and 146 transitions. [2024-06-04 17:37:11,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 221 transitions, 2611 flow [2024-06-04 17:37:11,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 221 transitions, 2395 flow, removed 14 selfloop flow, removed 10 redundant places. [2024-06-04 17:37:11,643 INFO L231 Difference]: Finished difference. Result has 171 places, 210 transitions, 2001 flow [2024-06-04 17:37:11,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1845, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2001, PETRI_PLACES=171, PETRI_TRANSITIONS=210} [2024-06-04 17:37:11,643 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 129 predicate places. [2024-06-04 17:37:11,643 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 210 transitions, 2001 flow [2024-06-04 17:37:11,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:11,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:37:11,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:37:11,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-04 17:37:11,644 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)] === [2024-06-04 17:37:11,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:37:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash -464693974, now seen corresponding path program 1 times [2024-06-04 17:37:11,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:37:11,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650449837] [2024-06-04 17:37:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:37:11,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:37:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:37:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:37:22,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:37:22,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650449837] [2024-06-04 17:37:22,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650449837] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:37:22,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:37:22,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:37:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379186672] [2024-06-04 17:37:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:37:22,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:37:22,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:37:22,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:37:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:37:22,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:37:22,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 210 transitions, 2001 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:22,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:37:22,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:37:22,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:37:23,845 INFO L124 PetriNetUnfolderBase]: 1805/2942 cut-off events. [2024-06-04 17:37:23,845 INFO L125 PetriNetUnfolderBase]: For 141388/141388 co-relation queries the response was YES. [2024-06-04 17:37:23,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20461 conditions, 2942 events. 1805/2942 cut-off events. For 141388/141388 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 16690 event pairs, 804 based on Foata normal form. 2/2942 useless extension candidates. Maximal degree in co-relation 20385. Up to 2724 conditions per place. [2024-06-04 17:37:23,872 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 205 selfloop transitions, 19 changer transitions 0/229 dead transitions. [2024-06-04 17:37:23,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 229 transitions, 2555 flow [2024-06-04 17:37:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:37:23,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:37:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2024-06-04 17:37:23,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42073170731707316 [2024-06-04 17:37:23,876 INFO L175 Difference]: Start difference. First operand has 171 places, 210 transitions, 2001 flow. Second operand 8 states and 138 transitions. [2024-06-04 17:37:23,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 229 transitions, 2555 flow [2024-06-04 17:37:23,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 229 transitions, 2435 flow, removed 40 selfloop flow, removed 7 redundant places. [2024-06-04 17:37:23,995 INFO L231 Difference]: Finished difference. Result has 172 places, 214 transitions, 1992 flow [2024-06-04 17:37:23,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1992, PETRI_PLACES=172, PETRI_TRANSITIONS=214} [2024-06-04 17:37:23,996 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 130 predicate places. [2024-06-04 17:37:23,996 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 214 transitions, 1992 flow [2024-06-04 17:37:23,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:23,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:37:23,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:37:23,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-04 17:37:23,997 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)] === [2024-06-04 17:37:23,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:37:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash 731415850, now seen corresponding path program 2 times [2024-06-04 17:37:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:37:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102000481] [2024-06-04 17:37:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:37:23,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:37:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:37:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:37:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:37:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102000481] [2024-06-04 17:37:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102000481] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:37:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:37:34,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:37:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105443806] [2024-06-04 17:37:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:37:34,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:37:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:37:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:37:34,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:37:34,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:37:34,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 214 transitions, 1992 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:34,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:37:34,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:37:34,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:37:35,655 INFO L124 PetriNetUnfolderBase]: 1815/2963 cut-off events. [2024-06-04 17:37:35,655 INFO L125 PetriNetUnfolderBase]: For 145671/145674 co-relation queries the response was YES. [2024-06-04 17:37:35,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21006 conditions, 2963 events. 1815/2963 cut-off events. For 145671/145674 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 16911 event pairs, 804 based on Foata normal form. 3/2963 useless extension candidates. Maximal degree in co-relation 20929. Up to 2734 conditions per place. [2024-06-04 17:37:35,685 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 207 selfloop transitions, 28 changer transitions 0/240 dead transitions. [2024-06-04 17:37:35,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 240 transitions, 2645 flow [2024-06-04 17:37:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:37:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:37:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2024-06-04 17:37:35,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-04 17:37:35,686 INFO L175 Difference]: Start difference. First operand has 172 places, 214 transitions, 1992 flow. Second operand 8 states and 136 transitions. [2024-06-04 17:37:35,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 240 transitions, 2645 flow [2024-06-04 17:37:35,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 240 transitions, 2544 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-06-04 17:37:35,840 INFO L231 Difference]: Finished difference. Result has 176 places, 229 transitions, 2143 flow [2024-06-04 17:37:35,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2143, PETRI_PLACES=176, PETRI_TRANSITIONS=229} [2024-06-04 17:37:35,841 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 134 predicate places. [2024-06-04 17:37:35,841 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 229 transitions, 2143 flow [2024-06-04 17:37:35,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:35,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:37:35,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:37:35,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-04 17:37:35,841 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)] === [2024-06-04 17:37:35,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:37:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash 739034410, now seen corresponding path program 3 times [2024-06-04 17:37:35,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:37:35,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095619269] [2024-06-04 17:37:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:37:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:37:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:37:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:37:47,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:37:47,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095619269] [2024-06-04 17:37:47,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095619269] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:37:47,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:37:47,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:37:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367731768] [2024-06-04 17:37:47,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:37:47,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:37:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:37:47,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:37:47,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:37:47,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:37:47,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 229 transitions, 2143 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:47,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:37:47,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:37:47,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:37:48,550 INFO L124 PetriNetUnfolderBase]: 1828/2977 cut-off events. [2024-06-04 17:37:48,550 INFO L125 PetriNetUnfolderBase]: For 152689/152692 co-relation queries the response was YES. [2024-06-04 17:37:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21576 conditions, 2977 events. 1828/2977 cut-off events. For 152689/152692 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16910 event pairs, 804 based on Foata normal form. 3/2977 useless extension candidates. Maximal degree in co-relation 21496. Up to 2714 conditions per place. [2024-06-04 17:37:48,577 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 194 selfloop transitions, 50 changer transitions 0/249 dead transitions. [2024-06-04 17:37:48,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 249 transitions, 2901 flow [2024-06-04 17:37:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:37:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:37:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-06-04 17:37:48,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4268292682926829 [2024-06-04 17:37:48,580 INFO L175 Difference]: Start difference. First operand has 176 places, 229 transitions, 2143 flow. Second operand 8 states and 140 transitions. [2024-06-04 17:37:48,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 249 transitions, 2901 flow [2024-06-04 17:37:48,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 249 transitions, 2812 flow, removed 40 selfloop flow, removed 2 redundant places. [2024-06-04 17:37:48,728 INFO L231 Difference]: Finished difference. Result has 183 places, 236 transitions, 2328 flow [2024-06-04 17:37:48,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2070, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2328, PETRI_PLACES=183, PETRI_TRANSITIONS=236} [2024-06-04 17:37:48,729 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 141 predicate places. [2024-06-04 17:37:48,729 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 236 transitions, 2328 flow [2024-06-04 17:37:48,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:37:48,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:37:48,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:37:48,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-04 17:37:48,730 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)] === [2024-06-04 17:37:48,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:37:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash 738767500, now seen corresponding path program 4 times [2024-06-04 17:37:48,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:37:48,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652132598] [2024-06-04 17:37:48,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:37:48,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:37:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:00,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:00,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652132598] [2024-06-04 17:38:00,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652132598] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:00,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:00,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:38:00,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113483178] [2024-06-04 17:38:00,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:00,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:38:00,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:38:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:38:00,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:00,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 236 transitions, 2328 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:00,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:00,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:00,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:38:01,311 INFO L124 PetriNetUnfolderBase]: 1835/2991 cut-off events. [2024-06-04 17:38:01,311 INFO L125 PetriNetUnfolderBase]: For 160717/160720 co-relation queries the response was YES. [2024-06-04 17:38:01,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22197 conditions, 2991 events. 1835/2991 cut-off events. For 160717/160720 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 17051 event pairs, 804 based on Foata normal form. 4/2992 useless extension candidates. Maximal degree in co-relation 22114. Up to 2740 conditions per place. [2024-06-04 17:38:01,337 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 208 selfloop transitions, 41 changer transitions 0/254 dead transitions. [2024-06-04 17:38:01,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 254 transitions, 2960 flow [2024-06-04 17:38:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:38:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:38:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2024-06-04 17:38:01,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42378048780487804 [2024-06-04 17:38:01,340 INFO L175 Difference]: Start difference. First operand has 183 places, 236 transitions, 2328 flow. Second operand 8 states and 139 transitions. [2024-06-04 17:38:01,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 254 transitions, 2960 flow [2024-06-04 17:38:01,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 254 transitions, 2847 flow, removed 35 selfloop flow, removed 4 redundant places. [2024-06-04 17:38:01,479 INFO L231 Difference]: Finished difference. Result has 187 places, 242 transitions, 2411 flow [2024-06-04 17:38:01,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2226, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2411, PETRI_PLACES=187, PETRI_TRANSITIONS=242} [2024-06-04 17:38:01,480 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 145 predicate places. [2024-06-04 17:38:01,480 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 242 transitions, 2411 flow [2024-06-04 17:38:01,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:01,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:38:01,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:38:01,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-04 17:38:01,480 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)] === [2024-06-04 17:38:01,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:38:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1699819182, now seen corresponding path program 1 times [2024-06-04 17:38:01,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:38:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196179074] [2024-06-04 17:38:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:38:01,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:38:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:10,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196179074] [2024-06-04 17:38:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196179074] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:38:10,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091505234] [2024-06-04 17:38:10,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:10,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:38:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:38:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:38:11,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:11,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 242 transitions, 2411 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:11,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:11,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:11,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:38:12,195 INFO L124 PetriNetUnfolderBase]: 1900/3101 cut-off events. [2024-06-04 17:38:12,195 INFO L125 PetriNetUnfolderBase]: For 175518/175527 co-relation queries the response was YES. [2024-06-04 17:38:12,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22715 conditions, 3101 events. 1900/3101 cut-off events. For 175518/175527 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 17585 event pairs, 349 based on Foata normal form. 18/3117 useless extension candidates. Maximal degree in co-relation 22630. Up to 2707 conditions per place. [2024-06-04 17:38:12,221 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 249 selfloop transitions, 31 changer transitions 0/285 dead transitions. [2024-06-04 17:38:12,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 285 transitions, 3197 flow [2024-06-04 17:38:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:38:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:38:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-04 17:38:12,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4715447154471545 [2024-06-04 17:38:12,222 INFO L175 Difference]: Start difference. First operand has 187 places, 242 transitions, 2411 flow. Second operand 9 states and 174 transitions. [2024-06-04 17:38:12,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 285 transitions, 3197 flow [2024-06-04 17:38:12,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 285 transitions, 3073 flow, removed 25 selfloop flow, removed 5 redundant places. [2024-06-04 17:38:12,425 INFO L231 Difference]: Finished difference. Result has 193 places, 251 transitions, 2487 flow [2024-06-04 17:38:12,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2287, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2487, PETRI_PLACES=193, PETRI_TRANSITIONS=251} [2024-06-04 17:38:12,426 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 151 predicate places. [2024-06-04 17:38:12,426 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 251 transitions, 2487 flow [2024-06-04 17:38:12,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:12,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:38:12,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:38:12,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-04 17:38:12,427 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)] === [2024-06-04 17:38:12,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:38:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2034178704, now seen corresponding path program 2 times [2024-06-04 17:38:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:38:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831188554] [2024-06-04 17:38:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:38:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:38:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831188554] [2024-06-04 17:38:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831188554] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:22,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:22,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:38:22,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989942265] [2024-06-04 17:38:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:22,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:38:22,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:38:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:38:22,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:22,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 251 transitions, 2487 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:22,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:22,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:22,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:38:23,740 INFO L124 PetriNetUnfolderBase]: 2112/3448 cut-off events. [2024-06-04 17:38:23,740 INFO L125 PetriNetUnfolderBase]: For 187660/187669 co-relation queries the response was YES. [2024-06-04 17:38:23,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25448 conditions, 3448 events. 2112/3448 cut-off events. For 187660/187669 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 19823 event pairs, 489 based on Foata normal form. 16/3457 useless extension candidates. Maximal degree in co-relation 25360. Up to 2949 conditions per place. [2024-06-04 17:38:23,775 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 262 selfloop transitions, 45 changer transitions 0/312 dead transitions. [2024-06-04 17:38:23,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 312 transitions, 3657 flow [2024-06-04 17:38:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:38:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:38:23,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-04 17:38:23,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4715447154471545 [2024-06-04 17:38:23,776 INFO L175 Difference]: Start difference. First operand has 193 places, 251 transitions, 2487 flow. Second operand 9 states and 174 transitions. [2024-06-04 17:38:23,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 312 transitions, 3657 flow [2024-06-04 17:38:23,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 312 transitions, 3464 flow, removed 71 selfloop flow, removed 4 redundant places. [2024-06-04 17:38:23,982 INFO L231 Difference]: Finished difference. Result has 202 places, 278 transitions, 2874 flow [2024-06-04 17:38:23,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2386, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2874, PETRI_PLACES=202, PETRI_TRANSITIONS=278} [2024-06-04 17:38:23,983 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 160 predicate places. [2024-06-04 17:38:23,983 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 278 transitions, 2874 flow [2024-06-04 17:38:23,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:23,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:38:23,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:38:23,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-04 17:38:23,983 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)] === [2024-06-04 17:38:23,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:38:23,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2034565124, now seen corresponding path program 3 times [2024-06-04 17:38:23,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:38:23,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397172424] [2024-06-04 17:38:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:38:23,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:38:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:34,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:34,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397172424] [2024-06-04 17:38:34,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397172424] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:34,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:34,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:38:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784908604] [2024-06-04 17:38:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:34,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:38:34,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:38:34,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:38:34,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:34,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 278 transitions, 2874 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:34,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:34,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:34,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:38:35,564 INFO L124 PetriNetUnfolderBase]: 2268/3707 cut-off events. [2024-06-04 17:38:35,565 INFO L125 PetriNetUnfolderBase]: For 192950/192959 co-relation queries the response was YES. [2024-06-04 17:38:35,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27377 conditions, 3707 events. 2268/3707 cut-off events. For 192950/192959 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 21544 event pairs, 574 based on Foata normal form. 18/3723 useless extension candidates. Maximal degree in co-relation 27283. Up to 3171 conditions per place. [2024-06-04 17:38:35,601 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 269 selfloop transitions, 59 changer transitions 0/333 dead transitions. [2024-06-04 17:38:35,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 333 transitions, 3997 flow [2024-06-04 17:38:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:38:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:38:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 175 transitions. [2024-06-04 17:38:35,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742547425474255 [2024-06-04 17:38:35,606 INFO L175 Difference]: Start difference. First operand has 202 places, 278 transitions, 2874 flow. Second operand 9 states and 175 transitions. [2024-06-04 17:38:35,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 333 transitions, 3997 flow [2024-06-04 17:38:35,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 333 transitions, 3851 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-06-04 17:38:35,865 INFO L231 Difference]: Finished difference. Result has 209 places, 300 transitions, 3249 flow [2024-06-04 17:38:35,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2782, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3249, PETRI_PLACES=209, PETRI_TRANSITIONS=300} [2024-06-04 17:38:35,866 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 167 predicate places. [2024-06-04 17:38:35,866 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 300 transitions, 3249 flow [2024-06-04 17:38:35,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:35,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:38:35,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:38:35,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-04 17:38:35,867 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)] === [2024-06-04 17:38:35,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:38:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1888470164, now seen corresponding path program 4 times [2024-06-04 17:38:35,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:38:35,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53139117] [2024-06-04 17:38:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:38:35,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:38:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:45,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53139117] [2024-06-04 17:38:45,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53139117] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:45,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:45,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:38:45,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666297206] [2024-06-04 17:38:45,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:45,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:38:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:38:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:38:46,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:46,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 300 transitions, 3249 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:46,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:46,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:46,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:38:47,398 INFO L124 PetriNetUnfolderBase]: 2327/3798 cut-off events. [2024-06-04 17:38:47,398 INFO L125 PetriNetUnfolderBase]: For 203207/203214 co-relation queries the response was YES. [2024-06-04 17:38:47,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28440 conditions, 3798 events. 2327/3798 cut-off events. For 203207/203214 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 22129 event pairs, 631 based on Foata normal form. 18/3814 useless extension candidates. Maximal degree in co-relation 28344. Up to 3346 conditions per place. [2024-06-04 17:38:47,434 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 280 selfloop transitions, 51 changer transitions 0/336 dead transitions. [2024-06-04 17:38:47,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 336 transitions, 4164 flow [2024-06-04 17:38:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:38:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:38:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-04 17:38:47,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46883468834688347 [2024-06-04 17:38:47,435 INFO L175 Difference]: Start difference. First operand has 209 places, 300 transitions, 3249 flow. Second operand 9 states and 173 transitions. [2024-06-04 17:38:47,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 336 transitions, 4164 flow [2024-06-04 17:38:47,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 336 transitions, 4027 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-06-04 17:38:47,737 INFO L231 Difference]: Finished difference. Result has 214 places, 306 transitions, 3339 flow [2024-06-04 17:38:47,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3112, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3339, PETRI_PLACES=214, PETRI_TRANSITIONS=306} [2024-06-04 17:38:47,737 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 172 predicate places. [2024-06-04 17:38:47,737 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 306 transitions, 3339 flow [2024-06-04 17:38:47,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:47,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:38:47,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:38:47,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-04 17:38:47,738 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)] === [2024-06-04 17:38:47,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:38:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2024397682, now seen corresponding path program 1 times [2024-06-04 17:38:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:38:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817051205] [2024-06-04 17:38:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:38:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:38:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:38:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:38:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:38:58,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817051205] [2024-06-04 17:38:58,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817051205] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:38:58,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:38:58,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:38:58,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144100222] [2024-06-04 17:38:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:38:58,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:38:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:38:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:38:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:38:58,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:38:58,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 306 transitions, 3339 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:38:58,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:38:58,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:38:58,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:39:00,348 INFO L124 PetriNetUnfolderBase]: 2357/3844 cut-off events. [2024-06-04 17:39:00,348 INFO L125 PetriNetUnfolderBase]: For 198580/198587 co-relation queries the response was YES. [2024-06-04 17:39:00,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28906 conditions, 3844 events. 2357/3844 cut-off events. For 198580/198587 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 22446 event pairs, 639 based on Foata normal form. 9/3851 useless extension candidates. Maximal degree in co-relation 28808. Up to 3416 conditions per place. [2024-06-04 17:39:00,391 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 279 selfloop transitions, 58 changer transitions 0/342 dead transitions. [2024-06-04 17:39:00,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 342 transitions, 4281 flow [2024-06-04 17:39:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:39:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:39:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2024-06-04 17:39:00,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4560975609756098 [2024-06-04 17:39:00,392 INFO L175 Difference]: Start difference. First operand has 214 places, 306 transitions, 3339 flow. Second operand 10 states and 187 transitions. [2024-06-04 17:39:00,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 342 transitions, 4281 flow [2024-06-04 17:39:00,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 342 transitions, 4135 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-04 17:39:00,696 INFO L231 Difference]: Finished difference. Result has 219 places, 315 transitions, 3492 flow [2024-06-04 17:39:00,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3193, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3492, PETRI_PLACES=219, PETRI_TRANSITIONS=315} [2024-06-04 17:39:00,697 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 177 predicate places. [2024-06-04 17:39:00,697 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 315 transitions, 3492 flow [2024-06-04 17:39:00,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:00,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:39:00,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:39:00,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-04 17:39:00,698 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)] === [2024-06-04 17:39:00,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:39:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2025607824, now seen corresponding path program 5 times [2024-06-04 17:39:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:39:00,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593326529] [2024-06-04 17:39:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:39:00,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:39:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:39:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:39:11,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:39:11,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593326529] [2024-06-04 17:39:11,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593326529] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:39:11,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:39:11,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:39:11,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103430080] [2024-06-04 17:39:11,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:39:11,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:39:11,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:39:11,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:39:11,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:39:11,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:39:11,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 315 transitions, 3492 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:11,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:39:11,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:39:11,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:39:13,225 INFO L124 PetriNetUnfolderBase]: 2475/4026 cut-off events. [2024-06-04 17:39:13,226 INFO L125 PetriNetUnfolderBase]: For 220644/220651 co-relation queries the response was YES. [2024-06-04 17:39:13,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30603 conditions, 4026 events. 2475/4026 cut-off events. For 220644/220651 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 23652 event pairs, 575 based on Foata normal form. 18/4042 useless extension candidates. Maximal degree in co-relation 30503. Up to 3513 conditions per place. [2024-06-04 17:39:13,270 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 298 selfloop transitions, 53 changer transitions 0/356 dead transitions. [2024-06-04 17:39:13,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 356 transitions, 4539 flow [2024-06-04 17:39:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:39:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:39:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-04 17:39:13,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2024-06-04 17:39:13,271 INFO L175 Difference]: Start difference. First operand has 219 places, 315 transitions, 3492 flow. Second operand 9 states and 172 transitions. [2024-06-04 17:39:13,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 356 transitions, 4539 flow [2024-06-04 17:39:13,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 356 transitions, 4313 flow, removed 57 selfloop flow, removed 7 redundant places. [2024-06-04 17:39:13,619 INFO L231 Difference]: Finished difference. Result has 222 places, 327 transitions, 3603 flow [2024-06-04 17:39:13,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3273, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3603, PETRI_PLACES=222, PETRI_TRANSITIONS=327} [2024-06-04 17:39:13,619 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 180 predicate places. [2024-06-04 17:39:13,619 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 327 transitions, 3603 flow [2024-06-04 17:39:13,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:13,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:39:13,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:39:13,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-04 17:39:13,620 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)] === [2024-06-04 17:39:13,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:39:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1738720494, now seen corresponding path program 6 times [2024-06-04 17:39:13,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:39:13,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949345191] [2024-06-04 17:39:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:39:13,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:39:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:39:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:39:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:39:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949345191] [2024-06-04 17:39:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949345191] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:39:24,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:39:24,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:39:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783488028] [2024-06-04 17:39:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:39:24,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:39:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:39:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:39:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:39:25,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:39:25,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 327 transitions, 3603 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:25,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:39:25,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:39:25,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:39:26,742 INFO L124 PetriNetUnfolderBase]: 2589/4223 cut-off events. [2024-06-04 17:39:26,742 INFO L125 PetriNetUnfolderBase]: For 231519/231522 co-relation queries the response was YES. [2024-06-04 17:39:26,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31955 conditions, 4223 events. 2589/4223 cut-off events. For 231519/231522 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 25082 event pairs, 569 based on Foata normal form. 14/4235 useless extension candidates. Maximal degree in co-relation 31853. Up to 3660 conditions per place. [2024-06-04 17:39:26,781 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 305 selfloop transitions, 64 changer transitions 0/374 dead transitions. [2024-06-04 17:39:26,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 374 transitions, 4732 flow [2024-06-04 17:39:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:39:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:39:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-04 17:39:26,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46070460704607047 [2024-06-04 17:39:26,782 INFO L175 Difference]: Start difference. First operand has 222 places, 327 transitions, 3603 flow. Second operand 9 states and 170 transitions. [2024-06-04 17:39:26,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 374 transitions, 4732 flow [2024-06-04 17:39:27,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 374 transitions, 4590 flow, removed 27 selfloop flow, removed 6 redundant places. [2024-06-04 17:39:27,115 INFO L231 Difference]: Finished difference. Result has 227 places, 346 transitions, 3888 flow [2024-06-04 17:39:27,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3461, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3888, PETRI_PLACES=227, PETRI_TRANSITIONS=346} [2024-06-04 17:39:27,116 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 185 predicate places. [2024-06-04 17:39:27,116 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 346 transitions, 3888 flow [2024-06-04 17:39:27,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:27,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:39:27,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:39:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-04 17:39:27,117 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:39:27,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:39:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash 2020688750, now seen corresponding path program 1 times [2024-06-04 17:39:27,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:39:27,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095798864] [2024-06-04 17:39:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:39:27,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:39:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:39:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:39:38,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:39:38,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095798864] [2024-06-04 17:39:38,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095798864] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:39:38,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:39:38,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:39:38,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083486381] [2024-06-04 17:39:38,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:39:38,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:39:38,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:39:38,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:39:38,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:39:38,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:39:38,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 346 transitions, 3888 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:38,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:39:38,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:39:38,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:39:40,061 INFO L124 PetriNetUnfolderBase]: 2667/4333 cut-off events. [2024-06-04 17:39:40,062 INFO L125 PetriNetUnfolderBase]: For 223389/223392 co-relation queries the response was YES. [2024-06-04 17:39:40,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33033 conditions, 4333 events. 2667/4333 cut-off events. For 223389/223392 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 25730 event pairs, 591 based on Foata normal form. 4/4335 useless extension candidates. Maximal degree in co-relation 32928. Up to 3833 conditions per place. [2024-06-04 17:39:40,116 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 334 selfloop transitions, 55 changer transitions 0/394 dead transitions. [2024-06-04 17:39:40,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 394 transitions, 5071 flow [2024-06-04 17:39:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:39:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:39:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-04 17:39:40,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:39:40,119 INFO L175 Difference]: Start difference. First operand has 227 places, 346 transitions, 3888 flow. Second operand 9 states and 171 transitions. [2024-06-04 17:39:40,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 394 transitions, 5071 flow [2024-06-04 17:39:40,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 394 transitions, 4917 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-06-04 17:39:40,489 INFO L231 Difference]: Finished difference. Result has 234 places, 367 transitions, 4223 flow [2024-06-04 17:39:40,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3739, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4223, PETRI_PLACES=234, PETRI_TRANSITIONS=367} [2024-06-04 17:39:40,490 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 192 predicate places. [2024-06-04 17:39:40,490 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 367 transitions, 4223 flow [2024-06-04 17:39:40,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:40,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:39:40,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:39:40,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-04 17:39:40,491 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)] === [2024-06-04 17:39:40,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:39:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2052589686, now seen corresponding path program 1 times [2024-06-04 17:39:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:39:40,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532351461] [2024-06-04 17:39:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:39:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:39:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:39:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:39:50,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:39:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532351461] [2024-06-04 17:39:50,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532351461] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:39:50,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:39:50,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:39:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950444308] [2024-06-04 17:39:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:39:50,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:39:50,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:39:50,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:39:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:39:51,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:39:51,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 367 transitions, 4223 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:51,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:39:51,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:39:51,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:39:52,580 INFO L124 PetriNetUnfolderBase]: 2707/4404 cut-off events. [2024-06-04 17:39:52,580 INFO L125 PetriNetUnfolderBase]: For 234591/234594 co-relation queries the response was YES. [2024-06-04 17:39:52,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33983 conditions, 4404 events. 2707/4404 cut-off events. For 234591/234594 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 26249 event pairs, 571 based on Foata normal form. 6/4408 useless extension candidates. Maximal degree in co-relation 33874. Up to 3926 conditions per place. [2024-06-04 17:39:52,631 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 342 selfloop transitions, 52 changer transitions 0/399 dead transitions. [2024-06-04 17:39:52,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 399 transitions, 5242 flow [2024-06-04 17:39:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:39:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:39:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2024-06-04 17:39:52,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45799457994579945 [2024-06-04 17:39:52,633 INFO L175 Difference]: Start difference. First operand has 234 places, 367 transitions, 4223 flow. Second operand 9 states and 169 transitions. [2024-06-04 17:39:52,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 399 transitions, 5242 flow [2024-06-04 17:39:53,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 399 transitions, 5129 flow, removed 44 selfloop flow, removed 3 redundant places. [2024-06-04 17:39:53,119 INFO L231 Difference]: Finished difference. Result has 241 places, 375 transitions, 4361 flow [2024-06-04 17:39:53,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4110, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4361, PETRI_PLACES=241, PETRI_TRANSITIONS=375} [2024-06-04 17:39:53,119 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 199 predicate places. [2024-06-04 17:39:53,119 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 375 transitions, 4361 flow [2024-06-04 17:39:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:39:53,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:39:53,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:39:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-04 17:39:53,120 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)] === [2024-06-04 17:39:53,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:39:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1878788892, now seen corresponding path program 2 times [2024-06-04 17:39:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:39:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137478098] [2024-06-04 17:39:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:39:53,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:39:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:40:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:40:03,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:40:03,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137478098] [2024-06-04 17:40:03,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137478098] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:40:03,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:40:03,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:40:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27327178] [2024-06-04 17:40:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:40:03,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:40:03,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:40:03,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:40:03,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:40:03,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:40:03,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 375 transitions, 4361 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:03,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:40:03,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:40:03,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:40:05,036 INFO L124 PetriNetUnfolderBase]: 2813/4575 cut-off events. [2024-06-04 17:40:05,037 INFO L125 PetriNetUnfolderBase]: For 252297/252300 co-relation queries the response was YES. [2024-06-04 17:40:05,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35628 conditions, 4575 events. 2813/4575 cut-off events. For 252297/252300 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 27431 event pairs, 577 based on Foata normal form. 6/4579 useless extension candidates. Maximal degree in co-relation 35516. Up to 3869 conditions per place. [2024-06-04 17:40:05,097 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 326 selfloop transitions, 91 changer transitions 0/422 dead transitions. [2024-06-04 17:40:05,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 422 transitions, 5713 flow [2024-06-04 17:40:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:40:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:40:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 170 transitions. [2024-06-04 17:40:05,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46070460704607047 [2024-06-04 17:40:05,098 INFO L175 Difference]: Start difference. First operand has 241 places, 375 transitions, 4361 flow. Second operand 9 states and 170 transitions. [2024-06-04 17:40:05,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 422 transitions, 5713 flow [2024-06-04 17:40:05,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 422 transitions, 5591 flow, removed 26 selfloop flow, removed 5 redundant places. [2024-06-04 17:40:05,510 INFO L231 Difference]: Finished difference. Result has 246 places, 396 transitions, 4739 flow [2024-06-04 17:40:05,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4239, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4739, PETRI_PLACES=246, PETRI_TRANSITIONS=396} [2024-06-04 17:40:05,511 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 204 predicate places. [2024-06-04 17:40:05,511 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 396 transitions, 4739 flow [2024-06-04 17:40:05,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:05,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:40:05,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:40:05,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-04 17:40:05,512 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)] === [2024-06-04 17:40:05,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:40:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1875458166, now seen corresponding path program 3 times [2024-06-04 17:40:05,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:40:05,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528344438] [2024-06-04 17:40:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:40:05,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:40:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:40:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:40:15,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:40:15,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528344438] [2024-06-04 17:40:15,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528344438] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:40:15,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:40:15,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-04 17:40:15,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672855352] [2024-06-04 17:40:15,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:40:15,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-04 17:40:15,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:40:15,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-04 17:40:15,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-04 17:40:15,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:40:15,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 396 transitions, 4739 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:15,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:40:15,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:40:15,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:40:17,352 INFO L124 PetriNetUnfolderBase]: 2833/4613 cut-off events. [2024-06-04 17:40:17,353 INFO L125 PetriNetUnfolderBase]: For 262803/262806 co-relation queries the response was YES. [2024-06-04 17:40:17,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36380 conditions, 4613 events. 2833/4613 cut-off events. For 262803/262806 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 27758 event pairs, 596 based on Foata normal form. 6/4617 useless extension candidates. Maximal degree in co-relation 36266. Up to 3885 conditions per place. [2024-06-04 17:40:17,407 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 328 selfloop transitions, 93 changer transitions 0/426 dead transitions. [2024-06-04 17:40:17,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 426 transitions, 5962 flow [2024-06-04 17:40:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:40:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:40:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-04 17:40:17,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-04 17:40:17,409 INFO L175 Difference]: Start difference. First operand has 246 places, 396 transitions, 4739 flow. Second operand 9 states and 171 transitions. [2024-06-04 17:40:17,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 426 transitions, 5962 flow [2024-06-04 17:40:17,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 426 transitions, 5816 flow, removed 34 selfloop flow, removed 5 redundant places. [2024-06-04 17:40:17,791 INFO L231 Difference]: Finished difference. Result has 251 places, 401 transitions, 4945 flow [2024-06-04 17:40:17,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4593, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4945, PETRI_PLACES=251, PETRI_TRANSITIONS=401} [2024-06-04 17:40:17,792 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 209 predicate places. [2024-06-04 17:40:17,792 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 401 transitions, 4945 flow [2024-06-04 17:40:17,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:17,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:40:17,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:40:17,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-04 17:40:17,793 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:40:17,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:40:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1235793728, now seen corresponding path program 2 times [2024-06-04 17:40:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:40:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482423785] [2024-06-04 17:40:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:40:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:40:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:40:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:40:29,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:40:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482423785] [2024-06-04 17:40:29,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482423785] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:40:29,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:40:29,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:40:29,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780507945] [2024-06-04 17:40:29,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:40:29,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:40:29,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:40:29,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:40:29,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:40:30,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:40:30,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 401 transitions, 4945 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:30,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:40:30,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:40:30,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:40:31,598 INFO L124 PetriNetUnfolderBase]: 2878/4661 cut-off events. [2024-06-04 17:40:31,598 INFO L125 PetriNetUnfolderBase]: For 268493/268500 co-relation queries the response was YES. [2024-06-04 17:40:31,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37368 conditions, 4661 events. 2878/4661 cut-off events. For 268493/268500 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 27946 event pairs, 616 based on Foata normal form. 9/4668 useless extension candidates. Maximal degree in co-relation 37251. Up to 4135 conditions per place. [2024-06-04 17:40:31,654 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 364 selfloop transitions, 71 changer transitions 0/440 dead transitions. [2024-06-04 17:40:31,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 440 transitions, 6150 flow [2024-06-04 17:40:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:40:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:40:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-04 17:40:31,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45365853658536587 [2024-06-04 17:40:31,656 INFO L175 Difference]: Start difference. First operand has 251 places, 401 transitions, 4945 flow. Second operand 10 states and 186 transitions. [2024-06-04 17:40:31,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 440 transitions, 6150 flow [2024-06-04 17:40:32,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 440 transitions, 5974 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-06-04 17:40:32,092 INFO L231 Difference]: Finished difference. Result has 257 places, 415 transitions, 5188 flow [2024-06-04 17:40:32,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4772, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5188, PETRI_PLACES=257, PETRI_TRANSITIONS=415} [2024-06-04 17:40:32,092 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 215 predicate places. [2024-06-04 17:40:32,092 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 415 transitions, 5188 flow [2024-06-04 17:40:32,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:32,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:40:32,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:40:32,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-04 17:40:32,093 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:40:32,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:40:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1875224612, now seen corresponding path program 3 times [2024-06-04 17:40:32,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:40:32,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102074164] [2024-06-04 17:40:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:40:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:40:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:40:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:40:41,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:40:41,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102074164] [2024-06-04 17:40:41,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102074164] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:40:41,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:40:41,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:40:41,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737786666] [2024-06-04 17:40:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:40:41,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:40:41,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:40:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:40:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:40:42,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:40:42,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 415 transitions, 5188 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:42,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:40:42,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:40:42,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:40:43,452 INFO L124 PetriNetUnfolderBase]: 2890/4697 cut-off events. [2024-06-04 17:40:43,453 INFO L125 PetriNetUnfolderBase]: For 279256/279259 co-relation queries the response was YES. [2024-06-04 17:40:43,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38232 conditions, 4697 events. 2890/4697 cut-off events. For 279256/279259 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 28298 event pairs, 575 based on Foata normal form. 4/4699 useless extension candidates. Maximal degree in co-relation 38113. Up to 4067 conditions per place. [2024-06-04 17:40:43,508 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 393 selfloop transitions, 87 changer transitions 0/485 dead transitions. [2024-06-04 17:40:43,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 485 transitions, 7178 flow [2024-06-04 17:40:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:40:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:40:43,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-06-04 17:40:43,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44390243902439025 [2024-06-04 17:40:43,510 INFO L175 Difference]: Start difference. First operand has 257 places, 415 transitions, 5188 flow. Second operand 10 states and 182 transitions. [2024-06-04 17:40:43,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 485 transitions, 7178 flow [2024-06-04 17:40:44,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 485 transitions, 6940 flow, removed 61 selfloop flow, removed 6 redundant places. [2024-06-04 17:40:44,009 INFO L231 Difference]: Finished difference. Result has 264 places, 460 transitions, 6067 flow [2024-06-04 17:40:44,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4958, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6067, PETRI_PLACES=264, PETRI_TRANSITIONS=460} [2024-06-04 17:40:44,009 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 222 predicate places. [2024-06-04 17:40:44,009 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 460 transitions, 6067 flow [2024-06-04 17:40:44,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:44,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:40:44,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:40:44,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-06-04 17:40:44,010 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:40:44,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:40:44,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1875212522, now seen corresponding path program 4 times [2024-06-04 17:40:44,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:40:44,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557871322] [2024-06-04 17:40:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:40:44,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:40:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:40:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:40:55,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:40:55,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557871322] [2024-06-04 17:40:55,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557871322] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:40:55,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:40:55,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:40:55,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879912936] [2024-06-04 17:40:55,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:40:55,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:40:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:40:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:40:55,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:40:55,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:40:55,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 460 transitions, 6067 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:55,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:40:55,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:40:55,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:40:56,962 INFO L124 PetriNetUnfolderBase]: 2954/4792 cut-off events. [2024-06-04 17:40:56,963 INFO L125 PetriNetUnfolderBase]: For 302700/302703 co-relation queries the response was YES. [2024-06-04 17:40:57,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40411 conditions, 4792 events. 2954/4792 cut-off events. For 302700/302703 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 28915 event pairs, 575 based on Foata normal form. 5/4795 useless extension candidates. Maximal degree in co-relation 40288. Up to 3929 conditions per place. [2024-06-04 17:40:57,023 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 331 selfloop transitions, 162 changer transitions 0/498 dead transitions. [2024-06-04 17:40:57,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 498 transitions, 7780 flow [2024-06-04 17:40:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-04 17:40:57,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-04 17:40:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 204 transitions. [2024-06-04 17:40:57,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523281596452328 [2024-06-04 17:40:57,024 INFO L175 Difference]: Start difference. First operand has 264 places, 460 transitions, 6067 flow. Second operand 11 states and 204 transitions. [2024-06-04 17:40:57,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 498 transitions, 7780 flow [2024-06-04 17:40:57,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 498 transitions, 7536 flow, removed 85 selfloop flow, removed 5 redundant places. [2024-06-04 17:40:57,730 INFO L231 Difference]: Finished difference. Result has 272 places, 473 transitions, 6625 flow [2024-06-04 17:40:57,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5827, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6625, PETRI_PLACES=272, PETRI_TRANSITIONS=473} [2024-06-04 17:40:57,730 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 230 predicate places. [2024-06-04 17:40:57,731 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 473 transitions, 6625 flow [2024-06-04 17:40:57,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:40:57,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:40:57,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:40:57,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-06-04 17:40:57,731 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:40:57,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:40:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1875570572, now seen corresponding path program 5 times [2024-06-04 17:40:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:40:57,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484455075] [2024-06-04 17:40:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:40:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:40:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:41:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:41:09,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:41:09,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484455075] [2024-06-04 17:41:09,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484455075] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:41:09,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:41:09,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:41:09,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25359970] [2024-06-04 17:41:09,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:41:09,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:41:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:41:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:41:09,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:41:09,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:41:09,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 473 transitions, 6625 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:09,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:41:09,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:41:09,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:41:11,131 INFO L124 PetriNetUnfolderBase]: 2961/4802 cut-off events. [2024-06-04 17:41:11,131 INFO L125 PetriNetUnfolderBase]: For 313360/313363 co-relation queries the response was YES. [2024-06-04 17:41:11,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41254 conditions, 4802 events. 2961/4802 cut-off events. For 313360/313363 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 28946 event pairs, 577 based on Foata normal form. 5/4805 useless extension candidates. Maximal degree in co-relation 41128. Up to 4048 conditions per place. [2024-06-04 17:41:11,186 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 365 selfloop transitions, 131 changer transitions 0/501 dead transitions. [2024-06-04 17:41:11,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 501 transitions, 7997 flow [2024-06-04 17:41:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:41:11,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:41:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2024-06-04 17:41:11,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4560975609756098 [2024-06-04 17:41:11,187 INFO L175 Difference]: Start difference. First operand has 272 places, 473 transitions, 6625 flow. Second operand 10 states and 187 transitions. [2024-06-04 17:41:11,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 501 transitions, 7997 flow [2024-06-04 17:41:11,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 501 transitions, 7706 flow, removed 99 selfloop flow, removed 5 redundant places. [2024-06-04 17:41:11,762 INFO L231 Difference]: Finished difference. Result has 277 places, 478 transitions, 6787 flow [2024-06-04 17:41:11,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6358, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6787, PETRI_PLACES=277, PETRI_TRANSITIONS=478} [2024-06-04 17:41:11,763 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 235 predicate places. [2024-06-04 17:41:11,763 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 478 transitions, 6787 flow [2024-06-04 17:41:11,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:11,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:41:11,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:41:11,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-06-04 17:41:11,764 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:41:11,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:41:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1738351098, now seen corresponding path program 1 times [2024-06-04 17:41:11,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:41:11,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409366706] [2024-06-04 17:41:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:41:11,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:41:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:41:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:41:22,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:41:22,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409366706] [2024-06-04 17:41:22,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409366706] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:41:22,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:41:22,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:41:22,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797167573] [2024-06-04 17:41:22,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:41:22,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:41:22,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:41:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:41:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:41:22,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:41:22,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 478 transitions, 6787 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:22,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:41:22,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:41:22,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:41:24,323 INFO L124 PetriNetUnfolderBase]: 2969/4821 cut-off events. [2024-06-04 17:41:24,323 INFO L125 PetriNetUnfolderBase]: For 319072/319076 co-relation queries the response was YES. [2024-06-04 17:41:24,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41547 conditions, 4821 events. 2969/4821 cut-off events. For 319072/319076 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 29229 event pairs, 841 based on Foata normal form. 6/4826 useless extension candidates. Maximal degree in co-relation 41419. Up to 4440 conditions per place. [2024-06-04 17:41:24,390 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 473 selfloop transitions, 25 changer transitions 0/503 dead transitions. [2024-06-04 17:41:24,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 503 transitions, 7978 flow [2024-06-04 17:41:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-04 17:41:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-04 17:41:24,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2024-06-04 17:41:24,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-04 17:41:24,393 INFO L175 Difference]: Start difference. First operand has 277 places, 478 transitions, 6787 flow. Second operand 10 states and 170 transitions. [2024-06-04 17:41:24,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 503 transitions, 7978 flow [2024-06-04 17:41:24,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 503 transitions, 7682 flow, removed 63 selfloop flow, removed 6 redundant places. [2024-06-04 17:41:25,006 INFO L231 Difference]: Finished difference. Result has 283 places, 482 transitions, 6694 flow [2024-06-04 17:41:25,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6493, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6694, PETRI_PLACES=283, PETRI_TRANSITIONS=482} [2024-06-04 17:41:25,007 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 241 predicate places. [2024-06-04 17:41:25,007 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 482 transitions, 6694 flow [2024-06-04 17:41:25,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:25,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:41:25,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:41:25,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-06-04 17:41:25,007 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:41:25,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:41:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1480197940, now seen corresponding path program 7 times [2024-06-04 17:41:25,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:41:25,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877383542] [2024-06-04 17:41:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:41:25,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:41:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:41:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:41:35,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:41:35,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877383542] [2024-06-04 17:41:35,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877383542] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:41:35,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:41:35,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:41:35,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829379340] [2024-06-04 17:41:35,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:41:35,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:41:35,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:41:35,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:41:35,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:41:35,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:41:35,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 482 transitions, 6694 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:35,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:41:35,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:41:35,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:41:36,947 INFO L124 PetriNetUnfolderBase]: 3005/4873 cut-off events. [2024-06-04 17:41:36,947 INFO L125 PetriNetUnfolderBase]: For 346764/346771 co-relation queries the response was YES. [2024-06-04 17:41:36,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41834 conditions, 4873 events. 3005/4873 cut-off events. For 346764/346771 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 29437 event pairs, 483 based on Foata normal form. 16/4887 useless extension candidates. Maximal degree in co-relation 41703. Up to 3945 conditions per place. [2024-06-04 17:41:37,014 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 427 selfloop transitions, 80 changer transitions 0/512 dead transitions. [2024-06-04 17:41:37,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 512 transitions, 7942 flow [2024-06-04 17:41:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:41:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:41:37,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2024-06-04 17:41:37,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4725609756097561 [2024-06-04 17:41:37,015 INFO L175 Difference]: Start difference. First operand has 283 places, 482 transitions, 6694 flow. Second operand 8 states and 155 transitions. [2024-06-04 17:41:37,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 512 transitions, 7942 flow [2024-06-04 17:41:37,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 512 transitions, 7791 flow, removed 60 selfloop flow, removed 4 redundant places. [2024-06-04 17:41:37,739 INFO L231 Difference]: Finished difference. Result has 287 places, 484 transitions, 6824 flow [2024-06-04 17:41:37,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6543, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6824, PETRI_PLACES=287, PETRI_TRANSITIONS=484} [2024-06-04 17:41:37,740 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 245 predicate places. [2024-06-04 17:41:37,740 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 484 transitions, 6824 flow [2024-06-04 17:41:37,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:37,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:41:37,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:41:37,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-06-04 17:41:37,741 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:41:37,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:41:37,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1030123274, now seen corresponding path program 8 times [2024-06-04 17:41:37,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:41:37,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330254329] [2024-06-04 17:41:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:41:37,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:41:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:41:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:41:48,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:41:48,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330254329] [2024-06-04 17:41:48,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330254329] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:41:48,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:41:48,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:41:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634360837] [2024-06-04 17:41:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:41:48,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:41:48,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:41:48,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:41:48,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:41:48,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:41:48,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 484 transitions, 6824 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:48,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:41:48,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:41:48,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:41:50,394 INFO L124 PetriNetUnfolderBase]: 3049/4943 cut-off events. [2024-06-04 17:41:50,394 INFO L125 PetriNetUnfolderBase]: For 363905/363912 co-relation queries the response was YES. [2024-06-04 17:41:50,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43108 conditions, 4943 events. 3049/4943 cut-off events. For 363905/363912 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 29961 event pairs, 673 based on Foata normal form. 18/4959 useless extension candidates. Maximal degree in co-relation 42976. Up to 4217 conditions per place. [2024-06-04 17:41:50,458 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 432 selfloop transitions, 76 changer transitions 0/513 dead transitions. [2024-06-04 17:41:50,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 513 transitions, 8109 flow [2024-06-04 17:41:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:41:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:41:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-04 17:41:50,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695121951219512 [2024-06-04 17:41:50,459 INFO L175 Difference]: Start difference. First operand has 287 places, 484 transitions, 6824 flow. Second operand 8 states and 154 transitions. [2024-06-04 17:41:50,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 513 transitions, 8109 flow [2024-06-04 17:41:51,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 513 transitions, 7878 flow, removed 46 selfloop flow, removed 6 redundant places. [2024-06-04 17:41:51,217 INFO L231 Difference]: Finished difference. Result has 289 places, 486 transitions, 6868 flow [2024-06-04 17:41:51,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6605, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6868, PETRI_PLACES=289, PETRI_TRANSITIONS=486} [2024-06-04 17:41:51,218 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 247 predicate places. [2024-06-04 17:41:51,218 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 486 transitions, 6868 flow [2024-06-04 17:41:51,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:41:51,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:41:51,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:41:51,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-06-04 17:41:51,219 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:41:51,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:41:51,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1870140128, now seen corresponding path program 6 times [2024-06-04 17:41:51,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:41:51,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129983812] [2024-06-04 17:41:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:41:51,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:41:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:42:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:42:02,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:42:02,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129983812] [2024-06-04 17:42:02,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129983812] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:42:02,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:42:02,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-04 17:42:02,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174299776] [2024-06-04 17:42:02,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:42:02,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-04 17:42:02,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:42:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-04 17:42:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-06-04 17:42:02,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:42:02,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 486 transitions, 6868 flow. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:42:02,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:42:02,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:42:02,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:42:04,138 INFO L124 PetriNetUnfolderBase]: 3081/4991 cut-off events. [2024-06-04 17:42:04,138 INFO L125 PetriNetUnfolderBase]: For 331398/331402 co-relation queries the response was YES. [2024-06-04 17:42:04,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43052 conditions, 4991 events. 3081/4991 cut-off events. For 331398/331402 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 30340 event pairs, 701 based on Foata normal form. 8/4995 useless extension candidates. Maximal degree in co-relation 42919. Up to 4227 conditions per place. [2024-06-04 17:42:04,341 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 381 selfloop transitions, 137 changer transitions 0/523 dead transitions. [2024-06-04 17:42:04,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 523 transitions, 8474 flow [2024-06-04 17:42:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-04 17:42:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-04 17:42:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-04 17:42:04,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46883468834688347 [2024-06-04 17:42:04,343 INFO L175 Difference]: Start difference. First operand has 289 places, 486 transitions, 6868 flow. Second operand 9 states and 173 transitions. [2024-06-04 17:42:04,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 523 transitions, 8474 flow [2024-06-04 17:42:05,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 8261 flow, removed 40 selfloop flow, removed 6 redundant places. [2024-06-04 17:42:05,084 INFO L231 Difference]: Finished difference. Result has 294 places, 497 transitions, 7356 flow [2024-06-04 17:42:05,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6667, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7356, PETRI_PLACES=294, PETRI_TRANSITIONS=497} [2024-06-04 17:42:05,085 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 252 predicate places. [2024-06-04 17:42:05,085 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 497 transitions, 7356 flow [2024-06-04 17:42:05,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:42:05,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:42:05,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:42:05,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-06-04 17:42:05,085 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:42:05,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:42:05,086 INFO L85 PathProgramCache]: Analyzing trace with hash -122993902, now seen corresponding path program 9 times [2024-06-04 17:42:05,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:42:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983233510] [2024-06-04 17:42:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:42:05,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:42:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 17:42:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 17:42:14,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 17:42:14,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983233510] [2024-06-04 17:42:14,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983233510] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 17:42:14,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 17:42:14,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-04 17:42:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710147162] [2024-06-04 17:42:14,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 17:42:14,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 17:42:14,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 17:42:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 17:42:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-04 17:42:14,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-04 17:42:14,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 497 transitions, 7356 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:42:14,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 17:42:14,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-04 17:42:14,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 17:42:16,686 INFO L124 PetriNetUnfolderBase]: 3125/5067 cut-off events. [2024-06-04 17:42:16,686 INFO L125 PetriNetUnfolderBase]: For 352870/352873 co-relation queries the response was YES. [2024-06-04 17:42:16,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44372 conditions, 5067 events. 3125/5067 cut-off events. For 352870/352873 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 30897 event pairs, 585 based on Foata normal form. 14/5079 useless extension candidates. Maximal degree in co-relation 44236. Up to 4298 conditions per place. [2024-06-04 17:42:16,746 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 413 selfloop transitions, 104 changer transitions 0/522 dead transitions. [2024-06-04 17:42:16,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 522 transitions, 8657 flow [2024-06-04 17:42:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-04 17:42:16,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-04 17:42:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-04 17:42:16,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573170731707317 [2024-06-04 17:42:16,747 INFO L175 Difference]: Start difference. First operand has 294 places, 497 transitions, 7356 flow. Second operand 8 states and 150 transitions. [2024-06-04 17:42:16,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 522 transitions, 8657 flow [2024-06-04 17:42:17,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 522 transitions, 8398 flow, removed 86 selfloop flow, removed 4 redundant places. [2024-06-04 17:42:17,476 INFO L231 Difference]: Finished difference. Result has 298 places, 499 transitions, 7406 flow [2024-06-04 17:42:17,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7097, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7406, PETRI_PLACES=298, PETRI_TRANSITIONS=499} [2024-06-04 17:42:17,476 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 256 predicate places. [2024-06-04 17:42:17,476 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 499 transitions, 7406 flow [2024-06-04 17:42:17,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 17:42:17,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 17:42:17,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 17:42:17,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-06-04 17:42:17,477 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-04 17:42:17,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 17:42:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash -300122260, now seen corresponding path program 2 times [2024-06-04 17:42:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 17:42:17,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26728084] [2024-06-04 17:42:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 17:42:17,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 17:42:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15