./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_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-76401ed-m [2024-06-20 18:45:14,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:45:15,009 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:45:15,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:45:15,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:45:15,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:45:15,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:45:15,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:45:15,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:45:15,047 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:45:15,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:45:15,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:45:15,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:45:15,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:45:15,050 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:45:15,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:45:15,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:45:15,050 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:45:15,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:45:15,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:45:15,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:45:15,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:45:15,054 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:45:15,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:45:15,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:45:15,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:45:15,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:45:15,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:45:15,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:45:15,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:45:15,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:45:15,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:45:15,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:45:15,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:45:15,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:45:15,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:45:15,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:45:15,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:45:15,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:45:15,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:45:15,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:45:15,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:45:15,308 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:45:15,309 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:45:15,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.yml/witness.yml [2024-06-20 18:45:15,489 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:45:15,489 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:45:15,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-20 18:45:16,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:45:16,727 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:45:16,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-20 18:45:16,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0dc77cc/b987beac6081489e9c8aba151b7b37e9/FLAG962f6b787 [2024-06-20 18:45:16,756 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e0dc77cc/b987beac6081489e9c8aba151b7b37e9 [2024-06-20 18:45:16,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:45:16,758 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:45:16,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:45:16,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:45:16,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:45:16,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:45:15" (1/2) ... [2024-06-20 18:45:16,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0906bd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:45:16, skipping insertion in model container [2024-06-20 18:45:16,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:45:15" (1/2) ... [2024-06-20 18:45:16,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5def5b2e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:45:16, skipping insertion in model container [2024-06-20 18:45:16,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:45:16" (2/2) ... [2024-06-20 18:45:16,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0906bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:16, skipping insertion in model container [2024-06-20 18:45:16,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:45:16" (2/2) ... [2024-06-20 18:45:16,768 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:45:16,846 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:45:16,847 INFO L97 edCorrectnessWitness]: Location invariant before [L843-L843] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-20 18:45:16,848 INFO L97 edCorrectnessWitness]: Location invariant before [L844-L844] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-20 18:45:16,849 INFO L97 edCorrectnessWitness]: Location invariant before [L841-L841] (((((((((((((((((((! multithreaded || (0 <= __unbuffered_p2_EAX && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || ((0 <= z$mem_tmp && z$mem_tmp <= 1) && (z$mem_tmp == 0 || z$mem_tmp == 1)))) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd2 >= 0LL && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) + (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$w_buff0) + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )z$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x + (long long )z$flush_delayed >= 0LL) && (long long )x + (long long )z$mem_tmp >= 0LL) && (long long )x + (long long )z$r_buff0_thd0 >= 0LL) && (long long )x + (long long )z$r_buff0_thd2 >= 0LL) && (long long )x + (long long )z$r_buff0_thd3 >= 0LL) && (long long )x + (long long )z$r_buff1_thd0 >= 0LL) && (long long )x + (long long )z$r_buff1_thd2 >= 0LL) && (long long )x + (long long )z$r_buff1_thd3 >= 0LL) && (long long )x + (long long )z$read_delayed >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff1 >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )y + (long long )z$flush_delayed >= 0LL) && (long long )y + (long long )z$mem_tmp >= 0LL) && (long long )y + (long long )z$r_buff0_thd0 >= 0LL) && (long long )y + (long long )z$r_buff0_thd2 >= 0LL) && (long long )y + (long long )z$r_buff0_thd3 >= 0LL) && (long long )y + (long long )z$r_buff1_thd0 >= 0LL) && (long long )y + (long long )z$r_buff1_thd2 >= 0LL) && (long long )y + (long long )z$r_buff1_thd3 >= 0LL) && (long long )y + (long long )z$read_delayed >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff1 >= 0LL) && (long long )z + (long long )z$flush_delayed >= 0LL) && (long long )z + (long long )z$mem_tmp >= 0LL) && (long long )z + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z + (long long )z$read_delayed >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff1 >= 0LL) && (long long )z$flush_delayed + (long long )z$mem_tmp >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed + (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp + (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff1 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff1 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (long long )weak$$choice2 + (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )x) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )y) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$flush_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$mem_tmp) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice0) - (long long )z$w_buff1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff0 >= 0LL) && (1LL + (long long )weak$$choice2) - (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff0_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd2 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$r_buff1_thd3 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) - (long long )z$read_delayed >= 0LL) && (0LL - (long long )z$r_buff1_thd3) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff0_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff0_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd0 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff0_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff0_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$r_buff1_thd1 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd0) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd2 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$r_buff1_thd3 >= 0LL) && (1LL - (long long )z$r_buff1_thd1) - (long long )z$read_delayed >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd2) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$r_buff1_thd3) - (long long )z$w_buff1 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff0 >= 0LL) && (1LL - (long long )z$read_delayed) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$r_buff1_thd1 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff0_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff0 >= 0LL) && (2LL - (long long )z$r_buff1_thd1) - (long long )z$w_buff1 >= 0LL) && (2LL - (long long )z$w_buff0) - (long long )z$w_buff1 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )z$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )z$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )z$read_delayed >= 0LL) && (long long )x - (long long )z$r_buff0_thd0 >= 0LL) && (long long )x - (long long )z$r_buff0_thd2 >= 0LL) && (long long )x - (long long )z$r_buff0_thd3 >= 0LL) && (long long )x - (long long )z$r_buff1_thd0 >= 0LL) && (long long )x - (long long )z$r_buff1_thd2 >= 0LL) && (long long )x - (long long )z$r_buff1_thd3 >= 0LL) && (long long )x - (long long )z$read_delayed >= 0LL) && (long long )y - (long long )z$r_buff0_thd0 >= 0LL) && (long long )y - (long long )z$r_buff0_thd2 >= 0LL) && (long long )y - (long long )z$r_buff0_thd3 >= 0LL) && (long long )y - (long long )z$r_buff1_thd0 >= 0LL) && (long long )y - (long long )z$r_buff1_thd2 >= 0LL) && (long long )y - (long long )z$r_buff1_thd3 >= 0LL) && (long long )y - (long long )z$read_delayed >= 0LL) && (long long )z - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z - (long long )z$read_delayed >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$flush_delayed - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$flush_delayed - (long long )z$read_delayed >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$mem_tmp - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$mem_tmp - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff0_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd0 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )z$r_buff1_thd2 - (long long )z$read_delayed >= 0LL) && (long long )z$r_buff1_thd3 - (long long )z$read_delayed >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )z$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 - (long long )z$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )z$read_delayed >= 0LL))) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= x) && 0 <= y) && 0 <= z) && 0 <= z$mem_tmp) && 0 <= z$w_buff0) && 0 <= z$w_buff1) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EBX <= 1) && x <= 1) && z <= 1) && z$mem_tmp <= 1) && z$w_buff0 <= 1) && z$w_buff1 <= 1) && z$flush_delayed == (_Bool)0) && z$r_buff0_thd0 == (_Bool)0) && z$r_buff0_thd2 == (_Bool)0) && z$r_buff0_thd3 == (_Bool)0) && z$r_buff1_thd0 == (_Bool)0) && z$r_buff1_thd2 == (_Bool)0) && z$r_buff1_thd3 == (_Bool)0) && z$read_delayed == (_Bool)0) && z$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (x == 0 || x == 1)) && (z == 0 || z == 1)) && (z$mem_tmp == 0 || z$mem_tmp == 1)) && (z$w_buff0 == 0 || z$w_buff0 == 1)) && (z$w_buff1 == 0 || z$w_buff1 == 1)) && ((__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1) || __unbuffered_p2_EAX == 2)) && ((y == 0 || y == 1) || y == 2)))) && (! multithreaded || z$r_buff0_thd2 == (_Bool)0)) && (! multithreaded || z$read_delayed == (_Bool)0)) && (! multithreaded || z$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || z$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || z$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || z$read_delayed_var == 0)) && (! multithreaded || z$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff1 && z$w_buff1 <= 1) && (z$w_buff1 == 0 || z$w_buff1 == 1)))) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || z$r_buff1_thd2 == (_Bool)0)) && (! multithreaded || ((0 <= z$w_buff0 && z$w_buff0 <= 1) && (z$w_buff0 == 0 || z$w_buff0 == 1))) [2024-06-20 18:45:16,849 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:45:16,849 INFO L106 edCorrectnessWitness]: ghost_update [L839-L839] multithreaded = 1; [2024-06-20 18:45:16,888 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:45:17,199 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:45:17,210 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:45:17,640 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:45:17,673 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:45:17,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17 WrapperNode [2024-06-20 18:45:17,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:45:17,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:45:17,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:45:17,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:45:17,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:17,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:17,836 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 126 [2024-06-20 18:45:17,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:45:17,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:45:17,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:45:17,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:45:17,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:17,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:17,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,009 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]. [2024-06-20 18:45:18,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:45:18,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:45:18,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:45:18,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:45:18,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (1/1) ... [2024-06-20 18:45:18,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:45:18,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:45:18,095 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) [2024-06-20 18:45:18,101 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 [2024-06-20 18:45:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:45:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:45:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-20 18:45:18,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-20 18:45:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-20 18:45:18,126 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-20 18:45:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-20 18:45:18,126 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-20 18:45:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:45:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:45:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:45:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:45:18,130 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:45:18,225 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:45:18,227 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:45:19,389 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:45:19,390 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:45:19,686 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:45:19,686 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:45:19,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:45:19 BoogieIcfgContainer [2024-06-20 18:45:19,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:45:19,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:45:19,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:45:19,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:45:19,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:45:15" (1/4) ... [2024-06-20 18:45:19,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65a796 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:45:19, skipping insertion in model container [2024-06-20 18:45:19,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:45:16" (2/4) ... [2024-06-20 18:45:19,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65a796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:45:19, skipping insertion in model container [2024-06-20 18:45:19,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:45:17" (3/4) ... [2024-06-20 18:45:19,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a65a796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:45:19, skipping insertion in model container [2024-06-20 18:45:19,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:45:19" (4/4) ... [2024-06-20 18:45:19,696 INFO L112 eAbstractionObserver]: Analyzing ICFG mix025_power.oepc_power.opt_pso.oepc_rmo.oepc_tso.oepc_tso.opt.i [2024-06-20 18:45:19,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:45:19,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-20 18:45:19,710 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:45:19,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-20 18:45:19,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-06-20 18:45:19,895 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-06-20 18:45:19,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:45:19,898 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 61 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. [2024-06-20 18:45:19,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-06-20 18:45:19,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-06-20 18:45:19,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:45:19,919 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;@1989508e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:45:19,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-20 18:45:19,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:45:19,928 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-20 18:45:19,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:45:19,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:19,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:45:19,930 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)] === [2024-06-20 18:45:19,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash 373697404, now seen corresponding path program 1 times [2024-06-20 18:45:19,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:19,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787964535] [2024-06-20 18:45:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:19,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:45:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:45:25,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:45:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787964535] [2024-06-20 18:45:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787964535] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:45:25,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:45:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:45:25,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074259760] [2024-06-20 18:45:25,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:45:25,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:45:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:45:25,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:45:25,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:45:25,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-06-20 18:45:25,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:25,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:45:25,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-06-20 18:45:25,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:45:26,945 INFO L124 PetriNetUnfolderBase]: 1359/2099 cut-off events. [2024-06-20 18:45:26,946 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-06-20 18:45:26,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4213 conditions, 2099 events. 1359/2099 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10050 event pairs, 941 based on Foata normal form. 1/2056 useless extension candidates. Maximal degree in co-relation 4201. Up to 2029 conditions per place. [2024-06-20 18:45:26,964 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 32 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2024-06-20 18:45:26,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 171 flow [2024-06-20 18:45:26,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:45:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:45:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-06-20 18:45:26,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6097560975609756 [2024-06-20 18:45:26,975 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 3 states and 75 transitions. [2024-06-20 18:45:26,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 171 flow [2024-06-20 18:45:26,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:45:26,981 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 100 flow [2024-06-20 18:45:26,983 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} [2024-06-20 18:45:26,985 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2024-06-20 18:45:26,986 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 100 flow [2024-06-20 18:45:26,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:26,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:26,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:45:26,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:45:26,986 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)] === [2024-06-20 18:45:26,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1653924427, now seen corresponding path program 1 times [2024-06-20 18:45:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191359871] [2024-06-20 18:45:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:45:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:45:31,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:45:31,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191359871] [2024-06-20 18:45:31,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191359871] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:45:31,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:45:31,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:45:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883924988] [2024-06-20 18:45:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:45:31,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 18:45:31,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:45:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 18:45:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-20 18:45:31,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-06-20 18:45:31,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:31,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:45:31,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-06-20 18:45:31,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:45:32,388 INFO L124 PetriNetUnfolderBase]: 1353/2090 cut-off events. [2024-06-20 18:45:32,389 INFO L125 PetriNetUnfolderBase]: For 396/396 co-relation queries the response was YES. [2024-06-20 18:45:32,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4746 conditions, 2090 events. 1353/2090 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10005 event pairs, 795 based on Foata normal form. 3/2082 useless extension candidates. Maximal degree in co-relation 4734. Up to 2005 conditions per place. [2024-06-20 18:45:32,401 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 39 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2024-06-20 18:45:32,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 238 flow [2024-06-20 18:45:32,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:45:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:45:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-06-20 18:45:32,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5914634146341463 [2024-06-20 18:45:32,404 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 100 flow. Second operand 4 states and 97 transitions. [2024-06-20 18:45:32,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 238 flow [2024-06-20 18:45:32,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:45:32,407 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 136 flow [2024-06-20 18:45:32,408 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} [2024-06-20 18:45:32,408 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-06-20 18:45:32,408 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 136 flow [2024-06-20 18:45:32,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:32,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:32,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:45:32,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:45:32,411 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)] === [2024-06-20 18:45:32,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash -283436140, now seen corresponding path program 1 times [2024-06-20 18:45:32,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:32,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925590838] [2024-06-20 18:45:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:45:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:45:37,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:45:37,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925590838] [2024-06-20 18:45:37,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925590838] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:45:37,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:45:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:45:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418202880] [2024-06-20 18:45:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:45:37,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:45:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:45:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:45:37,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:45:37,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-20 18:45:37,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:37,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:45:37,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-20 18:45:37,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:45:38,713 INFO L124 PetriNetUnfolderBase]: 1641/2510 cut-off events. [2024-06-20 18:45:38,714 INFO L125 PetriNetUnfolderBase]: For 1285/1285 co-relation queries the response was YES. [2024-06-20 18:45:38,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6293 conditions, 2510 events. 1641/2510 cut-off events. For 1285/1285 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11956 event pairs, 746 based on Foata normal form. 3/2500 useless extension candidates. Maximal degree in co-relation 6279. Up to 2393 conditions per place. [2024-06-20 18:45:38,726 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 54 selfloop transitions, 13 changer transitions 0/72 dead transitions. [2024-06-20 18:45:38,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 72 transitions, 372 flow [2024-06-20 18:45:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:45:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:45:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2024-06-20 18:45:38,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2024-06-20 18:45:38,728 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 136 flow. Second operand 6 states and 136 transitions. [2024-06-20 18:45:38,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 72 transitions, 372 flow [2024-06-20 18:45:38,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 72 transitions, 352 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-20 18:45:38,731 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 194 flow [2024-06-20 18:45:38,731 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=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-06-20 18:45:38,731 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-06-20 18:45:38,731 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 194 flow [2024-06-20 18:45:38,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:38,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:38,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:45:38,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 18:45:38,732 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)] === [2024-06-20 18:45:38,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:38,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1521759228, now seen corresponding path program 1 times [2024-06-20 18:45:38,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:38,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453755115] [2024-06-20 18:45:38,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:38,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:45:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:45:43,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:45:43,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453755115] [2024-06-20 18:45:43,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453755115] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:45:43,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:45:43,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:45:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219219705] [2024-06-20 18:45:43,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:45:43,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 18:45:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:45:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 18:45:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-20 18:45:44,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-06-20 18:45:44,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 194 flow. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:44,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:45:44,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-06-20 18:45:44,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:45:45,275 INFO L124 PetriNetUnfolderBase]: 1632/2495 cut-off events. [2024-06-20 18:45:45,276 INFO L125 PetriNetUnfolderBase]: For 2539/2539 co-relation queries the response was YES. [2024-06-20 18:45:45,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6972 conditions, 2495 events. 1632/2495 cut-off events. For 2539/2539 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11847 event pairs, 582 based on Foata normal form. 6/2488 useless extension candidates. Maximal degree in co-relation 6956. Up to 2348 conditions per place. [2024-06-20 18:45:45,288 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 58 selfloop transitions, 15 changer transitions 0/78 dead transitions. [2024-06-20 18:45:45,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 78 transitions, 432 flow [2024-06-20 18:45:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:45:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:45:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2024-06-20 18:45:45,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5331010452961672 [2024-06-20 18:45:45,290 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 194 flow. Second operand 7 states and 153 transitions. [2024-06-20 18:45:45,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 78 transitions, 432 flow [2024-06-20 18:45:45,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 78 transitions, 404 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-20 18:45:45,293 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 215 flow [2024-06-20 18:45:45,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=215, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-06-20 18:45:45,293 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-06-20 18:45:45,294 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 215 flow [2024-06-20 18:45:45,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:45:45,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:45,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:45:45,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-20 18:45:45,294 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)] === [2024-06-20 18:45:45,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash 825508084, now seen corresponding path program 1 times [2024-06-20 18:45:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:45,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321087425] [2024-06-20 18:45:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:45,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:45:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:45:54,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:45:54,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321087425] [2024-06-20 18:45:54,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321087425] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:45:54,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:45:54,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:45:54,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463823258] [2024-06-20 18:45:54,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:45:54,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:45:54,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:45:54,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:45:54,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:45:54,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:45:54,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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) [2024-06-20 18:45:54,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:45:54,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:45:54,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:45:55,760 INFO L124 PetriNetUnfolderBase]: 1627/2500 cut-off events. [2024-06-20 18:45:55,760 INFO L125 PetriNetUnfolderBase]: For 3802/3802 co-relation queries the response was YES. [2024-06-20 18:45:55,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7408 conditions, 2500 events. 1627/2500 cut-off events. For 3802/3802 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 11864 event pairs, 689 based on Foata normal form. 2/2501 useless extension candidates. Maximal degree in co-relation 7390. Up to 2407 conditions per place. [2024-06-20 18:45:55,773 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 47 selfloop transitions, 8 changer transitions 0/59 dead transitions. [2024-06-20 18:45:55,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 369 flow [2024-06-20 18:45:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 18:45:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 18:45:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-06-20 18:45:55,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44390243902439025 [2024-06-20 18:45:55,774 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 215 flow. Second operand 5 states and 91 transitions. [2024-06-20 18:45:55,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 369 flow [2024-06-20 18:45:55,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 330 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-06-20 18:45:55,777 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 222 flow [2024-06-20 18:45:55,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2024-06-20 18:45:55,778 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-06-20 18:45:55,778 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 222 flow [2024-06-20 18:45:55,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 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) [2024-06-20 18:45:55,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:45:55,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:45:55,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-20 18:45:55,779 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)] === [2024-06-20 18:45:55,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:45:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash -214800678, now seen corresponding path program 1 times [2024-06-20 18:45:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:45:55,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950979791] [2024-06-20 18:45:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:45:55,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:45:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:46:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:46:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:46:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950979791] [2024-06-20 18:46:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950979791] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:46:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:46:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:46:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884670887] [2024-06-20 18:46:06,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:46:06,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 18:46:06,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:46:06,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 18:46:06,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-06-20 18:46:06,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:46:06,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:06,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:46:06,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:46:06,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:46:07,699 INFO L124 PetriNetUnfolderBase]: 1883/2794 cut-off events. [2024-06-20 18:46:07,700 INFO L125 PetriNetUnfolderBase]: For 6041/6041 co-relation queries the response was YES. [2024-06-20 18:46:07,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8903 conditions, 2794 events. 1883/2794 cut-off events. For 6041/6041 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 12580 event pairs, 763 based on Foata normal form. 6/2799 useless extension candidates. Maximal degree in co-relation 8883. Up to 2725 conditions per place. [2024-06-20 18:46:07,715 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 58 selfloop transitions, 17 changer transitions 0/78 dead transitions. [2024-06-20 18:46:07,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 78 transitions, 492 flow [2024-06-20 18:46:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:46:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:46:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-06-20 18:46:07,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44715447154471544 [2024-06-20 18:46:07,716 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 222 flow. Second operand 6 states and 110 transitions. [2024-06-20 18:46:07,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 78 transitions, 492 flow [2024-06-20 18:46:07,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 470 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-20 18:46:07,720 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 325 flow [2024-06-20 18:46:07,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2024-06-20 18:46:07,721 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2024-06-20 18:46:07,721 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 325 flow [2024-06-20 18:46:07,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:07,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:46:07,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:46:07,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-20 18:46:07,722 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)] === [2024-06-20 18:46:07,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:46:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1001015545, now seen corresponding path program 1 times [2024-06-20 18:46:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:46:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907143601] [2024-06-20 18:46:07,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:46:07,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:46:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:46:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:46:16,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:46:16,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907143601] [2024-06-20 18:46:16,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907143601] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:46:16,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:46:16,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:46:16,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006346728] [2024-06-20 18:46:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:46:16,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 18:46:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:46:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 18:46:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-20 18:46:17,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:46:17,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:17,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:46:17,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:46:17,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:46:18,033 INFO L124 PetriNetUnfolderBase]: 1698/2614 cut-off events. [2024-06-20 18:46:18,034 INFO L125 PetriNetUnfolderBase]: For 8065/8085 co-relation queries the response was YES. [2024-06-20 18:46:18,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9208 conditions, 2614 events. 1698/2614 cut-off events. For 8065/8085 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12491 event pairs, 669 based on Foata normal form. 6/2604 useless extension candidates. Maximal degree in co-relation 9185. Up to 2456 conditions per place. [2024-06-20 18:46:18,055 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 62 selfloop transitions, 16 changer transitions 0/85 dead transitions. [2024-06-20 18:46:18,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 603 flow [2024-06-20 18:46:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:46:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:46:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2024-06-20 18:46:18,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-20 18:46:18,057 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 325 flow. Second operand 6 states and 114 transitions. [2024-06-20 18:46:18,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 603 flow [2024-06-20 18:46:18,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 85 transitions, 587 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-06-20 18:46:18,064 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 403 flow [2024-06-20 18:46:18,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2024-06-20 18:46:18,065 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-06-20 18:46:18,065 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 403 flow [2024-06-20 18:46:18,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:18,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:46:18,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:46:18,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-20 18:46:18,066 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)] === [2024-06-20 18:46:18,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:46:18,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1218991803, now seen corresponding path program 2 times [2024-06-20 18:46:18,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:46:18,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036483691] [2024-06-20 18:46:18,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:46:18,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:46:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:46:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:46:25,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:46:25,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036483691] [2024-06-20 18:46:25,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036483691] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:46:25,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:46:25,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:46:25,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706208984] [2024-06-20 18:46:25,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:46:25,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:46:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:46:25,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:46:25,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:46:25,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:46:25,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:25,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:46:25,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:46:25,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:46:26,634 INFO L124 PetriNetUnfolderBase]: 1771/2693 cut-off events. [2024-06-20 18:46:26,634 INFO L125 PetriNetUnfolderBase]: For 11195/11209 co-relation queries the response was YES. [2024-06-20 18:46:26,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10111 conditions, 2693 events. 1771/2693 cut-off events. For 11195/11209 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 12881 event pairs, 962 based on Foata normal form. 2/2657 useless extension candidates. Maximal degree in co-relation 10085. Up to 2587 conditions per place. [2024-06-20 18:46:26,648 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 61 selfloop transitions, 13 changer transitions 0/81 dead transitions. [2024-06-20 18:46:26,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 81 transitions, 601 flow [2024-06-20 18:46:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:46:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:46:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-06-20 18:46:26,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:46:26,649 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 403 flow. Second operand 6 states and 108 transitions. [2024-06-20 18:46:26,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 81 transitions, 601 flow [2024-06-20 18:46:26,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 558 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-06-20 18:46:26,657 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 413 flow [2024-06-20 18:46:26,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2024-06-20 18:46:26,658 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-06-20 18:46:26,658 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 413 flow [2024-06-20 18:46:26,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:26,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:46:26,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:46:26,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-20 18:46:26,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:46:26,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:46:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1103537183, now seen corresponding path program 1 times [2024-06-20 18:46:26,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:46:26,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196294472] [2024-06-20 18:46:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:46:26,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:46:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:46:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:46:36,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:46:36,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196294472] [2024-06-20 18:46:36,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196294472] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:46:36,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:46:36,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:46:36,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127124398] [2024-06-20 18:46:36,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:46:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:46:36,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:46:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:46:36,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:46:37,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:46:37,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 413 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:37,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:46:37,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:46:37,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:46:38,462 INFO L124 PetriNetUnfolderBase]: 1744/2684 cut-off events. [2024-06-20 18:46:38,462 INFO L125 PetriNetUnfolderBase]: For 11998/12016 co-relation queries the response was YES. [2024-06-20 18:46:38,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10199 conditions, 2684 events. 1744/2684 cut-off events. For 11998/12016 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12840 event pairs, 644 based on Foata normal form. 6/2674 useless extension candidates. Maximal degree in co-relation 10170. Up to 2509 conditions per place. [2024-06-20 18:46:38,474 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 83 selfloop transitions, 27 changer transitions 0/117 dead transitions. [2024-06-20 18:46:38,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 117 transitions, 881 flow [2024-06-20 18:46:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:46:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:46:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2024-06-20 18:46:38,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43658536585365854 [2024-06-20 18:46:38,476 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 413 flow. Second operand 10 states and 179 transitions. [2024-06-20 18:46:38,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 117 transitions, 881 flow [2024-06-20 18:46:38,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 117 transitions, 850 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-20 18:46:38,484 INFO L231 Difference]: Finished difference. Result has 76 places, 82 transitions, 573 flow [2024-06-20 18:46:38,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=76, PETRI_TRANSITIONS=82} [2024-06-20 18:46:38,485 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 34 predicate places. [2024-06-20 18:46:38,485 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 82 transitions, 573 flow [2024-06-20 18:46:38,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:38,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:46:38,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:46:38,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-20 18:46:38,486 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)] === [2024-06-20 18:46:38,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:46:38,486 INFO L85 PathProgramCache]: Analyzing trace with hash -90491657, now seen corresponding path program 2 times [2024-06-20 18:46:38,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:46:38,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642366106] [2024-06-20 18:46:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:46:38,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:46:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:46:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:46:50,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:46:50,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642366106] [2024-06-20 18:46:50,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642366106] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:46:50,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:46:50,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:46:50,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57833274] [2024-06-20 18:46:50,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:46:50,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:46:50,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:46:50,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:46:50,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:46:50,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:46:50,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 82 transitions, 573 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:50,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:46:50,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:46:50,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:46:51,560 INFO L124 PetriNetUnfolderBase]: 1822/2775 cut-off events. [2024-06-20 18:46:51,560 INFO L125 PetriNetUnfolderBase]: For 16086/16102 co-relation queries the response was YES. [2024-06-20 18:46:51,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11373 conditions, 2775 events. 1822/2775 cut-off events. For 16086/16102 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 13317 event pairs, 818 based on Foata normal form. 5/2740 useless extension candidates. Maximal degree in co-relation 11340. Up to 2617 conditions per place. [2024-06-20 18:46:51,574 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 84 selfloop transitions, 36 changer transitions 0/127 dead transitions. [2024-06-20 18:46:51,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 127 transitions, 1083 flow [2024-06-20 18:46:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:46:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:46:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2024-06-20 18:46:51,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451219512195122 [2024-06-20 18:46:51,576 INFO L175 Difference]: Start difference. First operand has 76 places, 82 transitions, 573 flow. Second operand 8 states and 146 transitions. [2024-06-20 18:46:51,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 127 transitions, 1083 flow [2024-06-20 18:46:51,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 127 transitions, 984 flow, removed 35 selfloop flow, removed 4 redundant places. [2024-06-20 18:46:51,590 INFO L231 Difference]: Finished difference. Result has 82 places, 103 transitions, 801 flow [2024-06-20 18:46:51,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=801, PETRI_PLACES=82, PETRI_TRANSITIONS=103} [2024-06-20 18:46:51,591 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 40 predicate places. [2024-06-20 18:46:51,591 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 103 transitions, 801 flow [2024-06-20 18:46:51,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:46:51,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:46:51,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:46:51,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-20 18:46:51,592 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)] === [2024-06-20 18:46:51,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:46:51,592 INFO L85 PathProgramCache]: Analyzing trace with hash -90371687, now seen corresponding path program 3 times [2024-06-20 18:46:51,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:46:51,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365941814] [2024-06-20 18:46:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:46:51,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:46:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:03,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:03,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365941814] [2024-06-20 18:47:03,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365941814] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:03,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:03,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:47:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096828963] [2024-06-20 18:47:03,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:03,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:47:03,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:03,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:47:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:47:03,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:47:03,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 103 transitions, 801 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:03,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:03,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:47:03,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:04,632 INFO L124 PetriNetUnfolderBase]: 1868/2846 cut-off events. [2024-06-20 18:47:04,633 INFO L125 PetriNetUnfolderBase]: For 18805/18825 co-relation queries the response was YES. [2024-06-20 18:47:04,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12080 conditions, 2846 events. 1868/2846 cut-off events. For 18805/18825 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 13755 event pairs, 826 based on Foata normal form. 6/2811 useless extension candidates. Maximal degree in co-relation 12043. Up to 2586 conditions per place. [2024-06-20 18:47:04,647 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 77 selfloop transitions, 66 changer transitions 0/150 dead transitions. [2024-06-20 18:47:04,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 150 transitions, 1401 flow [2024-06-20 18:47:04,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:47:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:47:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-20 18:47:04,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634146341463415 [2024-06-20 18:47:04,649 INFO L175 Difference]: Start difference. First operand has 82 places, 103 transitions, 801 flow. Second operand 8 states and 152 transitions. [2024-06-20 18:47:04,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 150 transitions, 1401 flow [2024-06-20 18:47:04,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 150 transitions, 1332 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-20 18:47:04,665 INFO L231 Difference]: Finished difference. Result has 89 places, 121 transitions, 1075 flow [2024-06-20 18:47:04,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1075, PETRI_PLACES=89, PETRI_TRANSITIONS=121} [2024-06-20 18:47:04,665 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 47 predicate places. [2024-06-20 18:47:04,666 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 121 transitions, 1075 flow [2024-06-20 18:47:04,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:04,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:04,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:04,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-20 18:47:04,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:47:04,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash -90371501, now seen corresponding path program 1 times [2024-06-20 18:47:04,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:04,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032915129] [2024-06-20 18:47:04,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:04,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:16,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:16,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032915129] [2024-06-20 18:47:16,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032915129] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:16,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:16,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:47:16,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423530944] [2024-06-20 18:47:16,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:16,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:47:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:16,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:47:16,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:47:16,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:47:16,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 121 transitions, 1075 flow. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:16,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:16,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:47:16,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:18,097 INFO L124 PetriNetUnfolderBase]: 2152/3201 cut-off events. [2024-06-20 18:47:18,097 INFO L125 PetriNetUnfolderBase]: For 27749/27751 co-relation queries the response was YES. [2024-06-20 18:47:18,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14628 conditions, 3201 events. 2152/3201 cut-off events. For 27749/27751 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 14904 event pairs, 925 based on Foata normal form. 8/3206 useless extension candidates. Maximal degree in co-relation 14588. Up to 2939 conditions per place. [2024-06-20 18:47:18,112 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 140 selfloop transitions, 40 changer transitions 0/183 dead transitions. [2024-06-20 18:47:18,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 1888 flow [2024-06-20 18:47:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:47:18,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:47:18,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2024-06-20 18:47:18,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47560975609756095 [2024-06-20 18:47:18,114 INFO L175 Difference]: Start difference. First operand has 89 places, 121 transitions, 1075 flow. Second operand 8 states and 156 transitions. [2024-06-20 18:47:18,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 1888 flow [2024-06-20 18:47:18,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 183 transitions, 1829 flow, removed 25 selfloop flow, removed 2 redundant places. [2024-06-20 18:47:18,135 INFO L231 Difference]: Finished difference. Result has 99 places, 145 transitions, 1339 flow [2024-06-20 18:47:18,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1339, PETRI_PLACES=99, PETRI_TRANSITIONS=145} [2024-06-20 18:47:18,136 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 57 predicate places. [2024-06-20 18:47:18,136 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 145 transitions, 1339 flow [2024-06-20 18:47:18,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:18,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:18,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:18,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-20 18:47:18,137 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)] === [2024-06-20 18:47:18,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash -442463873, now seen corresponding path program 4 times [2024-06-20 18:47:18,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:18,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935364725] [2024-06-20 18:47:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:25,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:25,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935364725] [2024-06-20 18:47:25,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935364725] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:25,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:25,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:47:25,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225450158] [2024-06-20 18:47:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:25,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 18:47:25,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 18:47:25,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-20 18:47:25,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:47:25,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 145 transitions, 1339 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:25,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:25,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:47:25,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:26,708 INFO L124 PetriNetUnfolderBase]: 2081/3134 cut-off events. [2024-06-20 18:47:26,708 INFO L125 PetriNetUnfolderBase]: For 30010/30048 co-relation queries the response was YES. [2024-06-20 18:47:26,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15490 conditions, 3134 events. 2081/3134 cut-off events. For 30010/30048 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15063 event pairs, 936 based on Foata normal form. 3/3086 useless extension candidates. Maximal degree in co-relation 15444. Up to 2973 conditions per place. [2024-06-20 18:47:26,726 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 132 selfloop transitions, 34 changer transitions 0/179 dead transitions. [2024-06-20 18:47:26,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 179 transitions, 1915 flow [2024-06-20 18:47:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:47:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:47:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-20 18:47:26,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:47:26,727 INFO L175 Difference]: Start difference. First operand has 99 places, 145 transitions, 1339 flow. Second operand 7 states and 126 transitions. [2024-06-20 18:47:26,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 179 transitions, 1915 flow [2024-06-20 18:47:26,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 179 transitions, 1781 flow, removed 44 selfloop flow, removed 3 redundant places. [2024-06-20 18:47:26,757 INFO L231 Difference]: Finished difference. Result has 105 places, 162 transitions, 1530 flow [2024-06-20 18:47:26,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1530, PETRI_PLACES=105, PETRI_TRANSITIONS=162} [2024-06-20 18:47:26,758 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 63 predicate places. [2024-06-20 18:47:26,758 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 162 transitions, 1530 flow [2024-06-20 18:47:26,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:26,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:26,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:26,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-20 18:47:26,759 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)] === [2024-06-20 18:47:26,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:26,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1352709323, now seen corresponding path program 2 times [2024-06-20 18:47:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:26,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136437078] [2024-06-20 18:47:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:26,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136437078] [2024-06-20 18:47:35,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136437078] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:35,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:35,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:47:35,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360881779] [2024-06-20 18:47:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:35,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:47:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:35,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:47:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:47:36,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:47:36,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 162 transitions, 1530 flow. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:36,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:36,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:47:36,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:37,413 INFO L124 PetriNetUnfolderBase]: 2291/3403 cut-off events. [2024-06-20 18:47:37,413 INFO L125 PetriNetUnfolderBase]: For 37396/37400 co-relation queries the response was YES. [2024-06-20 18:47:37,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17236 conditions, 3403 events. 2291/3403 cut-off events. For 37396/37400 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15949 event pairs, 945 based on Foata normal form. 12/3411 useless extension candidates. Maximal degree in co-relation 17187. Up to 3015 conditions per place. [2024-06-20 18:47:37,430 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 146 selfloop transitions, 68 changer transitions 0/217 dead transitions. [2024-06-20 18:47:37,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 217 transitions, 2401 flow [2024-06-20 18:47:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:47:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:47:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2024-06-20 18:47:37,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47735191637630664 [2024-06-20 18:47:37,433 INFO L175 Difference]: Start difference. First operand has 105 places, 162 transitions, 1530 flow. Second operand 7 states and 137 transitions. [2024-06-20 18:47:37,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 217 transitions, 2401 flow [2024-06-20 18:47:37,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 217 transitions, 2366 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:47:37,464 INFO L231 Difference]: Finished difference. Result has 111 places, 184 transitions, 1876 flow [2024-06-20 18:47:37,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1495, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1876, PETRI_PLACES=111, PETRI_TRANSITIONS=184} [2024-06-20 18:47:37,465 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 69 predicate places. [2024-06-20 18:47:37,465 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 184 transitions, 1876 flow [2024-06-20 18:47:37,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:37,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:37,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:37,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-20 18:47:37,466 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)] === [2024-06-20 18:47:37,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:37,466 INFO L85 PathProgramCache]: Analyzing trace with hash -442343903, now seen corresponding path program 5 times [2024-06-20 18:47:37,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:37,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914950587] [2024-06-20 18:47:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:37,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:44,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:44,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914950587] [2024-06-20 18:47:44,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914950587] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:44,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:44,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:47:44,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696090151] [2024-06-20 18:47:44,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:44,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:47:44,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:44,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:47:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:47:44,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:47:44,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 184 transitions, 1876 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:44,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:44,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:47:44,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:46,224 INFO L124 PetriNetUnfolderBase]: 2142/3236 cut-off events. [2024-06-20 18:47:46,224 INFO L125 PetriNetUnfolderBase]: For 39900/39966 co-relation queries the response was YES. [2024-06-20 18:47:46,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17616 conditions, 3236 events. 2142/3236 cut-off events. For 39900/39966 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15649 event pairs, 811 based on Foata normal form. 7/3192 useless extension candidates. Maximal degree in co-relation 17564. Up to 2904 conditions per place. [2024-06-20 18:47:46,244 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 109 selfloop transitions, 85 changer transitions 0/214 dead transitions. [2024-06-20 18:47:46,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 214 transitions, 2519 flow [2024-06-20 18:47:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:47:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:47:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-20 18:47:46,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45993031358885017 [2024-06-20 18:47:46,245 INFO L175 Difference]: Start difference. First operand has 111 places, 184 transitions, 1876 flow. Second operand 7 states and 132 transitions. [2024-06-20 18:47:46,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 214 transitions, 2519 flow [2024-06-20 18:47:46,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 214 transitions, 2445 flow, removed 28 selfloop flow, removed 2 redundant places. [2024-06-20 18:47:46,284 INFO L231 Difference]: Finished difference. Result has 116 places, 190 transitions, 2071 flow [2024-06-20 18:47:46,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1806, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2071, PETRI_PLACES=116, PETRI_TRANSITIONS=190} [2024-06-20 18:47:46,285 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 74 predicate places. [2024-06-20 18:47:46,285 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 190 transitions, 2071 flow [2024-06-20 18:47:46,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:47:46,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:46,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:46,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-20 18:47:46,286 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:47:46,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash 866198615, now seen corresponding path program 3 times [2024-06-20 18:47:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:46,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813061635] [2024-06-20 18:47:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:47:54,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:47:54,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:47:54,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813061635] [2024-06-20 18:47:54,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813061635] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:47:54,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:47:54,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:47:54,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575445427] [2024-06-20 18:47:54,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:47:54,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:47:54,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:47:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:47:54,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:47:54,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:47:54,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 190 transitions, 2071 flow. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:54,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:47:54,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:47:54,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:47:56,174 INFO L124 PetriNetUnfolderBase]: 2359/3505 cut-off events. [2024-06-20 18:47:56,174 INFO L125 PetriNetUnfolderBase]: For 44054/44054 co-relation queries the response was YES. [2024-06-20 18:47:56,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19042 conditions, 3505 events. 2359/3505 cut-off events. For 44054/44054 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 16512 event pairs, 1033 based on Foata normal form. 8/3512 useless extension candidates. Maximal degree in co-relation 18988. Up to 3392 conditions per place. [2024-06-20 18:47:56,198 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 194 selfloop transitions, 26 changer transitions 0/223 dead transitions. [2024-06-20 18:47:56,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 223 transitions, 2768 flow [2024-06-20 18:47:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:47:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:47:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2024-06-20 18:47:56,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4355400696864111 [2024-06-20 18:47:56,199 INFO L175 Difference]: Start difference. First operand has 116 places, 190 transitions, 2071 flow. Second operand 7 states and 125 transitions. [2024-06-20 18:47:56,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 223 transitions, 2768 flow [2024-06-20 18:47:56,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 223 transitions, 2584 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-06-20 18:47:56,232 INFO L231 Difference]: Finished difference. Result has 119 places, 200 transitions, 2070 flow [2024-06-20 18:47:56,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2070, PETRI_PLACES=119, PETRI_TRANSITIONS=200} [2024-06-20 18:47:56,233 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 77 predicate places. [2024-06-20 18:47:56,233 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 200 transitions, 2070 flow [2024-06-20 18:47:56,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:47:56,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:47:56,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:47:56,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-20 18:47:56,234 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:47:56,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:47:56,234 INFO L85 PathProgramCache]: Analyzing trace with hash -265212197, now seen corresponding path program 4 times [2024-06-20 18:47:56,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:47:56,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690643283] [2024-06-20 18:47:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:47:56,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:47:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:48:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:48:03,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:48:03,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690643283] [2024-06-20 18:48:03,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690643283] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:48:03,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:48:03,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:48:03,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073976801] [2024-06-20 18:48:03,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:48:03,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:48:03,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:48:03,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:48:03,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:48:03,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:48:03,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 200 transitions, 2070 flow. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:48:03,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:48:03,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:48:03,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:48:05,009 INFO L124 PetriNetUnfolderBase]: 2395/3557 cut-off events. [2024-06-20 18:48:05,010 INFO L125 PetriNetUnfolderBase]: For 44427/44427 co-relation queries the response was YES. [2024-06-20 18:48:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19310 conditions, 3557 events. 2395/3557 cut-off events. For 44427/44427 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 16741 event pairs, 1030 based on Foata normal form. 10/3566 useless extension candidates. Maximal degree in co-relation 19255. Up to 3345 conditions per place. [2024-06-20 18:48:05,032 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 197 selfloop transitions, 45 changer transitions 0/245 dead transitions. [2024-06-20 18:48:05,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 245 transitions, 2969 flow [2024-06-20 18:48:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:48:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:48:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2024-06-20 18:48:05,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4176829268292683 [2024-06-20 18:48:05,034 INFO L175 Difference]: Start difference. First operand has 119 places, 200 transitions, 2070 flow. Second operand 8 states and 137 transitions. [2024-06-20 18:48:05,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 245 transitions, 2969 flow [2024-06-20 18:48:05,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 245 transitions, 2905 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-06-20 18:48:05,070 INFO L231 Difference]: Finished difference. Result has 124 places, 217 transitions, 2340 flow [2024-06-20 18:48:05,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2006, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2340, PETRI_PLACES=124, PETRI_TRANSITIONS=217} [2024-06-20 18:48:05,071 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 82 predicate places. [2024-06-20 18:48:05,071 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 217 transitions, 2340 flow [2024-06-20 18:48:05,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 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) [2024-06-20 18:48:05,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:48:05,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:48:05,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-20 18:48:05,072 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:48:05,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:48:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash 146157515, now seen corresponding path program 6 times [2024-06-20 18:48:05,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:48:05,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895519391] [2024-06-20 18:48:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:48:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:48:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:48:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:48:13,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:48:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895519391] [2024-06-20 18:48:13,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895519391] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:48:13,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:48:13,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:48:13,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550628510] [2024-06-20 18:48:13,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:48:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:48:13,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:48:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:48:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:48:13,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:48:13,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 217 transitions, 2340 flow. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:48:13,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:48:13,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:48:13,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:48:14,914 INFO L124 PetriNetUnfolderBase]: 2268/3411 cut-off events. [2024-06-20 18:48:14,914 INFO L125 PetriNetUnfolderBase]: For 46221/46267 co-relation queries the response was YES. [2024-06-20 18:48:14,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18975 conditions, 3411 events. 2268/3411 cut-off events. For 46221/46267 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 16575 event pairs, 945 based on Foata normal form. 13/3375 useless extension candidates. Maximal degree in co-relation 18919. Up to 3224 conditions per place. [2024-06-20 18:48:14,934 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 186 selfloop transitions, 21 changer transitions 0/235 dead transitions. [2024-06-20 18:48:14,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 235 transitions, 2840 flow [2024-06-20 18:48:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:48:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:48:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2024-06-20 18:48:14,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-06-20 18:48:14,949 INFO L175 Difference]: Start difference. First operand has 124 places, 217 transitions, 2340 flow. Second operand 7 states and 123 transitions. [2024-06-20 18:48:14,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 235 transitions, 2840 flow [2024-06-20 18:48:14,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 235 transitions, 2739 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-06-20 18:48:14,986 INFO L231 Difference]: Finished difference. Result has 127 places, 217 transitions, 2293 flow [2024-06-20 18:48:14,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2239, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2293, PETRI_PLACES=127, PETRI_TRANSITIONS=217} [2024-06-20 18:48:14,986 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 85 predicate places. [2024-06-20 18:48:14,987 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 217 transitions, 2293 flow [2024-06-20 18:48:14,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:48:14,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:48:14,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:48:14,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-20 18:48:14,987 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:48:14,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:48:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -264966119, now seen corresponding path program 1 times [2024-06-20 18:48:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:48:14,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294531716] [2024-06-20 18:48:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:48:14,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:48:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:48:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:48:26,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:48:26,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294531716] [2024-06-20 18:48:26,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294531716] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:48:26,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:48:26,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:48:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346157231] [2024-06-20 18:48:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:48:26,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:48:26,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:48:26,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:48:26,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:48:26,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:48:26,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 217 transitions, 2293 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:48:26,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:48:26,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:48:26,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:48:27,768 INFO L124 PetriNetUnfolderBase]: 2390/3551 cut-off events. [2024-06-20 18:48:27,769 INFO L125 PetriNetUnfolderBase]: For 52207/52207 co-relation queries the response was YES. [2024-06-20 18:48:27,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20001 conditions, 3551 events. 2390/3551 cut-off events. For 52207/52207 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 16763 event pairs, 1017 based on Foata normal form. 6/3556 useless extension candidates. Maximal degree in co-relation 19944. Up to 3425 conditions per place. [2024-06-20 18:48:27,793 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 212 selfloop transitions, 26 changer transitions 0/241 dead transitions. [2024-06-20 18:48:27,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 241 transitions, 2963 flow [2024-06-20 18:48:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:48:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:48:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-20 18:48:27,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:48:27,794 INFO L175 Difference]: Start difference. First operand has 127 places, 217 transitions, 2293 flow. Second operand 7 states and 126 transitions. [2024-06-20 18:48:27,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 241 transitions, 2963 flow [2024-06-20 18:48:27,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 241 transitions, 2817 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-06-20 18:48:27,835 INFO L231 Difference]: Finished difference. Result has 127 places, 220 transitions, 2251 flow [2024-06-20 18:48:27,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2147, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2251, PETRI_PLACES=127, PETRI_TRANSITIONS=220} [2024-06-20 18:48:27,836 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 85 predicate places. [2024-06-20 18:48:27,836 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 220 transitions, 2251 flow [2024-06-20 18:48:27,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:48:27,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:48:27,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:48:27,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-20 18:48:27,836 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)] === [2024-06-20 18:48:27,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:48:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1426632991, now seen corresponding path program 1 times [2024-06-20 18:48:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:48:27,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814426193] [2024-06-20 18:48:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:48:27,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:48:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:48:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:48:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:48:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814426193] [2024-06-20 18:48:40,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814426193] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:48:40,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:48:40,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-20 18:48:40,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842296698] [2024-06-20 18:48:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:48:40,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-20 18:48:40,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:48:40,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-20 18:48:40,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-20 18:48:40,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:48:40,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 220 transitions, 2251 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-06-20 18:48:40,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:48:40,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:48:40,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:48:41,805 INFO L124 PetriNetUnfolderBase]: 2227/3375 cut-off events. [2024-06-20 18:48:41,806 INFO L125 PetriNetUnfolderBase]: For 55297/55311 co-relation queries the response was YES. [2024-06-20 18:48:41,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19282 conditions, 3375 events. 2227/3375 cut-off events. For 55297/55311 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 16436 event pairs, 1031 based on Foata normal form. 9/3379 useless extension candidates. Maximal degree in co-relation 19225. Up to 3177 conditions per place. [2024-06-20 18:48:41,829 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 185 selfloop transitions, 9 changer transitions 0/227 dead transitions. [2024-06-20 18:48:41,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 227 transitions, 2667 flow [2024-06-20 18:48:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-20 18:48:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-20 18:48:41,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-06-20 18:48:41,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.424390243902439 [2024-06-20 18:48:41,830 INFO L175 Difference]: Start difference. First operand has 127 places, 220 transitions, 2251 flow. Second operand 5 states and 87 transitions. [2024-06-20 18:48:41,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 227 transitions, 2667 flow [2024-06-20 18:48:41,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 227 transitions, 2579 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-20 18:48:41,864 INFO L231 Difference]: Finished difference. Result has 127 places, 220 transitions, 2187 flow [2024-06-20 18:48:41,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2163, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2187, PETRI_PLACES=127, PETRI_TRANSITIONS=220} [2024-06-20 18:48:41,864 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 85 predicate places. [2024-06-20 18:48:41,864 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 220 transitions, 2187 flow [2024-06-20 18:48:41,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-06-20 18:48:41,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:48:41,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:48:41,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-20 18:48:41,865 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)] === [2024-06-20 18:48:41,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:48:41,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1894397134, now seen corresponding path program 1 times [2024-06-20 18:48:41,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:48:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242715573] [2024-06-20 18:48:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:48:41,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:48:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:48:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:48:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:48:53,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242715573] [2024-06-20 18:48:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242715573] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:48:53,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:48:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:48:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904398082] [2024-06-20 18:48:53,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:48:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:48:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:48:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:48:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:48:53,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:48:53,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 220 transitions, 2187 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:48:53,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:48:53,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:48:53,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:48:54,900 INFO L124 PetriNetUnfolderBase]: 2336/3512 cut-off events. [2024-06-20 18:48:54,901 INFO L125 PetriNetUnfolderBase]: For 64299/64362 co-relation queries the response was YES. [2024-06-20 18:48:54,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20414 conditions, 3512 events. 2336/3512 cut-off events. For 64299/64362 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 17100 event pairs, 833 based on Foata normal form. 16/3478 useless extension candidates. Maximal degree in co-relation 20356. Up to 3140 conditions per place. [2024-06-20 18:48:54,921 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 169 selfloop transitions, 75 changer transitions 0/273 dead transitions. [2024-06-20 18:48:54,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 273 transitions, 3109 flow [2024-06-20 18:48:54,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:48:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:48:54,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-20 18:48:54,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45365853658536587 [2024-06-20 18:48:54,924 INFO L175 Difference]: Start difference. First operand has 127 places, 220 transitions, 2187 flow. Second operand 10 states and 186 transitions. [2024-06-20 18:48:54,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 273 transitions, 3109 flow [2024-06-20 18:48:54,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 273 transitions, 3091 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-06-20 18:48:54,961 INFO L231 Difference]: Finished difference. Result has 136 places, 234 transitions, 2535 flow [2024-06-20 18:48:54,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2169, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2535, PETRI_PLACES=136, PETRI_TRANSITIONS=234} [2024-06-20 18:48:54,962 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 94 predicate places. [2024-06-20 18:48:54,962 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 234 transitions, 2535 flow [2024-06-20 18:48:54,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:48:54,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:48:54,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:48:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-20 18:48:54,963 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:48:54,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:48:54,963 INFO L85 PathProgramCache]: Analyzing trace with hash -187105596, now seen corresponding path program 2 times [2024-06-20 18:48:54,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:48:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832244621] [2024-06-20 18:48:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:48:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:48:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:49:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:49:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:49:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832244621] [2024-06-20 18:49:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832244621] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:49:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:49:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:49:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362624422] [2024-06-20 18:49:06,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:49:06,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:49:06,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:49:06,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:49:06,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:49:06,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:49:06,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 234 transitions, 2535 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:06,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:49:06,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:49:06,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:49:08,287 INFO L124 PetriNetUnfolderBase]: 2382/3586 cut-off events. [2024-06-20 18:49:08,287 INFO L125 PetriNetUnfolderBase]: For 72759/72815 co-relation queries the response was YES. [2024-06-20 18:49:08,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21981 conditions, 3586 events. 2382/3586 cut-off events. For 72759/72815 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 17524 event pairs, 842 based on Foata normal form. 17/3560 useless extension candidates. Maximal degree in co-relation 21920. Up to 3239 conditions per place. [2024-06-20 18:49:08,312 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 181 selfloop transitions, 85 changer transitions 0/295 dead transitions. [2024-06-20 18:49:08,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 295 transitions, 3634 flow [2024-06-20 18:49:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:49:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:49:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 198 transitions. [2024-06-20 18:49:08,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:49:08,315 INFO L175 Difference]: Start difference. First operand has 136 places, 234 transitions, 2535 flow. Second operand 11 states and 198 transitions. [2024-06-20 18:49:08,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 295 transitions, 3634 flow [2024-06-20 18:49:08,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 295 transitions, 3366 flow, removed 98 selfloop flow, removed 5 redundant places. [2024-06-20 18:49:08,378 INFO L231 Difference]: Finished difference. Result has 143 places, 255 transitions, 2833 flow [2024-06-20 18:49:08,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2381, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2833, PETRI_PLACES=143, PETRI_TRANSITIONS=255} [2024-06-20 18:49:08,378 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 101 predicate places. [2024-06-20 18:49:08,378 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 255 transitions, 2833 flow [2024-06-20 18:49:08,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:08,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:49:08,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:49:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-20 18:49:08,379 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:49:08,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:49:08,379 INFO L85 PathProgramCache]: Analyzing trace with hash -150044941, now seen corresponding path program 1 times [2024-06-20 18:49:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:49:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398711873] [2024-06-20 18:49:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:49:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:49:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:49:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:49:20,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:49:20,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398711873] [2024-06-20 18:49:20,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398711873] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:49:20,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:49:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:49:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032399715] [2024-06-20 18:49:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:49:20,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:49:20,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:49:20,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:49:20,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:49:20,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:49:20,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 255 transitions, 2833 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:49:20,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:49:20,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:49:20,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:49:22,233 INFO L124 PetriNetUnfolderBase]: 2618/3878 cut-off events. [2024-06-20 18:49:22,233 INFO L125 PetriNetUnfolderBase]: For 77336/77339 co-relation queries the response was YES. [2024-06-20 18:49:22,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23887 conditions, 3878 events. 2618/3878 cut-off events. For 77336/77339 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 18382 event pairs, 902 based on Foata normal form. 8/3885 useless extension candidates. Maximal degree in co-relation 23823. Up to 3625 conditions per place. [2024-06-20 18:49:22,258 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 233 selfloop transitions, 76 changer transitions 0/312 dead transitions. [2024-06-20 18:49:22,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 312 transitions, 3879 flow [2024-06-20 18:49:22,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-20 18:49:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-20 18:49:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2024-06-20 18:49:22,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4071294559099437 [2024-06-20 18:49:22,259 INFO L175 Difference]: Start difference. First operand has 143 places, 255 transitions, 2833 flow. Second operand 13 states and 217 transitions. [2024-06-20 18:49:22,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 312 transitions, 3879 flow [2024-06-20 18:49:22,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 312 transitions, 3749 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-06-20 18:49:22,325 INFO L231 Difference]: Finished difference. Result has 151 places, 267 transitions, 3019 flow [2024-06-20 18:49:22,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2703, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3019, PETRI_PLACES=151, PETRI_TRANSITIONS=267} [2024-06-20 18:49:22,326 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 109 predicate places. [2024-06-20 18:49:22,326 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 267 transitions, 3019 flow [2024-06-20 18:49:22,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:49:22,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:49:22,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:49:22,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-20 18:49:22,326 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)] === [2024-06-20 18:49:22,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:49:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash -150049746, now seen corresponding path program 3 times [2024-06-20 18:49:22,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:49:22,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517658215] [2024-06-20 18:49:22,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:49:22,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:49:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:49:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:49:33,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:49:33,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517658215] [2024-06-20 18:49:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517658215] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:49:33,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:49:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:49:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638809424] [2024-06-20 18:49:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:49:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:49:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:49:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:49:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:49:33,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:49:33,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 267 transitions, 3019 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:33,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:49:33,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:49:33,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:49:35,572 INFO L124 PetriNetUnfolderBase]: 2507/3761 cut-off events. [2024-06-20 18:49:35,572 INFO L125 PetriNetUnfolderBase]: For 88702/88764 co-relation queries the response was YES. [2024-06-20 18:49:35,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24501 conditions, 3761 events. 2507/3761 cut-off events. For 88702/88764 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 18413 event pairs, 841 based on Foata normal form. 13/3729 useless extension candidates. Maximal degree in co-relation 24433. Up to 3432 conditions per place. [2024-06-20 18:49:35,599 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 203 selfloop transitions, 70 changer transitions 0/305 dead transitions. [2024-06-20 18:49:35,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 305 transitions, 3759 flow [2024-06-20 18:49:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:49:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:49:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 192 transitions. [2024-06-20 18:49:35,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42572062084257206 [2024-06-20 18:49:35,602 INFO L175 Difference]: Start difference. First operand has 151 places, 267 transitions, 3019 flow. Second operand 11 states and 192 transitions. [2024-06-20 18:49:35,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 305 transitions, 3759 flow [2024-06-20 18:49:35,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 305 transitions, 3601 flow, removed 38 selfloop flow, removed 8 redundant places. [2024-06-20 18:49:35,671 INFO L231 Difference]: Finished difference. Result has 154 places, 270 transitions, 3068 flow [2024-06-20 18:49:35,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2861, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3068, PETRI_PLACES=154, PETRI_TRANSITIONS=270} [2024-06-20 18:49:35,672 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 112 predicate places. [2024-06-20 18:49:35,672 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 270 transitions, 3068 flow [2024-06-20 18:49:35,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:35,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:49:35,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:49:35,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-20 18:49:35,672 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)] === [2024-06-20 18:49:35,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:49:35,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1489637258, now seen corresponding path program 4 times [2024-06-20 18:49:35,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:49:35,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443165664] [2024-06-20 18:49:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:49:35,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:49:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:49:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:49:44,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:49:44,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443165664] [2024-06-20 18:49:44,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443165664] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:49:44,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:49:44,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:49:44,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689166489] [2024-06-20 18:49:44,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:49:44,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:49:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:49:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:49:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:49:44,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:49:44,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 270 transitions, 3068 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:44,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:49:44,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:49:44,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:49:46,561 INFO L124 PetriNetUnfolderBase]: 2595/3893 cut-off events. [2024-06-20 18:49:46,561 INFO L125 PetriNetUnfolderBase]: For 94777/94835 co-relation queries the response was YES. [2024-06-20 18:49:46,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25706 conditions, 3893 events. 2595/3893 cut-off events. For 94777/94835 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 19088 event pairs, 798 based on Foata normal form. 19/3878 useless extension candidates. Maximal degree in co-relation 25636. Up to 3531 conditions per place. [2024-06-20 18:49:46,588 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 223 selfloop transitions, 82 changer transitions 0/337 dead transitions. [2024-06-20 18:49:46,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 337 transitions, 4314 flow [2024-06-20 18:49:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:49:46,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:49:46,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-06-20 18:49:46,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44390243902439025 [2024-06-20 18:49:46,591 INFO L175 Difference]: Start difference. First operand has 154 places, 270 transitions, 3068 flow. Second operand 10 states and 182 transitions. [2024-06-20 18:49:46,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 337 transitions, 4314 flow [2024-06-20 18:49:46,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 337 transitions, 4108 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-06-20 18:49:46,675 INFO L231 Difference]: Finished difference. Result has 156 places, 303 transitions, 3553 flow [2024-06-20 18:49:46,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=2889, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3553, PETRI_PLACES=156, PETRI_TRANSITIONS=303} [2024-06-20 18:49:46,676 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 114 predicate places. [2024-06-20 18:49:46,676 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 303 transitions, 3553 flow [2024-06-20 18:49:46,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:49:46,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:49:46,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:49:46,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-20 18:49:46,676 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:49:46,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:49:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1489727623, now seen corresponding path program 2 times [2024-06-20 18:49:46,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:49:46,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649706931] [2024-06-20 18:49:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:49:46,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:49:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:49:59,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:49:59,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:49:59,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649706931] [2024-06-20 18:49:59,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649706931] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:49:59,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:49:59,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:49:59,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633814029] [2024-06-20 18:49:59,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:49:59,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:49:59,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:49:59,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:49:59,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:49:59,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:49:59,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 303 transitions, 3553 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:49:59,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:49:59,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:49:59,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:50:01,288 INFO L124 PetriNetUnfolderBase]: 2901/4281 cut-off events. [2024-06-20 18:50:01,288 INFO L125 PetriNetUnfolderBase]: For 105789/105799 co-relation queries the response was YES. [2024-06-20 18:50:01,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28424 conditions, 4281 events. 2901/4281 cut-off events. For 105789/105799 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 20616 event pairs, 888 based on Foata normal form. 18/4298 useless extension candidates. Maximal degree in co-relation 28352. Up to 4008 conditions per place. [2024-06-20 18:50:01,334 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 285 selfloop transitions, 79 changer transitions 0/367 dead transitions. [2024-06-20 18:50:01,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 367 transitions, 4823 flow [2024-06-20 18:50:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:50:01,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:50:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2024-06-20 18:50:01,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-20 18:50:01,335 INFO L175 Difference]: Start difference. First operand has 156 places, 303 transitions, 3553 flow. Second operand 11 states and 187 transitions. [2024-06-20 18:50:01,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 367 transitions, 4823 flow [2024-06-20 18:50:01,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 367 transitions, 4714 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-06-20 18:50:01,455 INFO L231 Difference]: Finished difference. Result has 163 places, 333 transitions, 3965 flow [2024-06-20 18:50:01,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3444, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3965, PETRI_PLACES=163, PETRI_TRANSITIONS=333} [2024-06-20 18:50:01,456 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 121 predicate places. [2024-06-20 18:50:01,456 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 333 transitions, 3965 flow [2024-06-20 18:50:01,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:50:01,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:50:01,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:50:01,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-20 18:50:01,457 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:50:01,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:50:01,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1489727468, now seen corresponding path program 5 times [2024-06-20 18:50:01,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:50:01,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106387835] [2024-06-20 18:50:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:50:01,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:50:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:50:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:50:13,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:50:13,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106387835] [2024-06-20 18:50:13,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106387835] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:50:13,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:50:13,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:50:13,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858931655] [2024-06-20 18:50:13,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:50:13,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:50:13,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:50:13,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:50:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:50:13,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:50:13,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 333 transitions, 3965 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:50:13,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:50:13,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:50:13,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:50:15,309 INFO L124 PetriNetUnfolderBase]: 2745/4113 cut-off events. [2024-06-20 18:50:15,309 INFO L125 PetriNetUnfolderBase]: For 115076/115138 co-relation queries the response was YES. [2024-06-20 18:50:15,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28807 conditions, 4113 events. 2745/4113 cut-off events. For 115076/115138 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 20483 event pairs, 828 based on Foata normal form. 20/4099 useless extension candidates. Maximal degree in co-relation 28731. Up to 3764 conditions per place. [2024-06-20 18:50:15,345 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 258 selfloop transitions, 61 changer transitions 0/360 dead transitions. [2024-06-20 18:50:15,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 360 transitions, 4705 flow [2024-06-20 18:50:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:50:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:50:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 162 transitions. [2024-06-20 18:50:15,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:50:15,348 INFO L175 Difference]: Start difference. First operand has 163 places, 333 transitions, 3965 flow. Second operand 9 states and 162 transitions. [2024-06-20 18:50:15,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 360 transitions, 4705 flow [2024-06-20 18:50:15,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 360 transitions, 4515 flow, removed 72 selfloop flow, removed 5 redundant places. [2024-06-20 18:50:15,498 INFO L231 Difference]: Finished difference. Result has 167 places, 333 transitions, 3917 flow [2024-06-20 18:50:15,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3775, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3917, PETRI_PLACES=167, PETRI_TRANSITIONS=333} [2024-06-20 18:50:15,499 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 125 predicate places. [2024-06-20 18:50:15,499 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 333 transitions, 3917 flow [2024-06-20 18:50:15,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:50:15,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:50:15,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:50:15,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-20 18:50:15,499 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:50:15,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:50:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1693289823, now seen corresponding path program 3 times [2024-06-20 18:50:15,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:50:15,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551378064] [2024-06-20 18:50:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:50:15,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:50:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:50:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:50:28,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:50:28,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551378064] [2024-06-20 18:50:28,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551378064] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:50:28,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:50:28,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:50:28,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039634175] [2024-06-20 18:50:28,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:50:28,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:50:28,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:50:28,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:50:28,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:50:28,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:50:28,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 333 transitions, 3917 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:50:28,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:50:28,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:50:28,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:50:30,344 INFO L124 PetriNetUnfolderBase]: 3042/4483 cut-off events. [2024-06-20 18:50:30,344 INFO L125 PetriNetUnfolderBase]: For 128352/128367 co-relation queries the response was YES. [2024-06-20 18:50:30,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31531 conditions, 4483 events. 3042/4483 cut-off events. For 128352/128367 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 21941 event pairs, 862 based on Foata normal form. 18/4498 useless extension candidates. Maximal degree in co-relation 31453. Up to 3534 conditions per place. [2024-06-20 18:50:30,377 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 259 selfloop transitions, 142 changer transitions 0/404 dead transitions. [2024-06-20 18:50:30,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 404 transitions, 5677 flow [2024-06-20 18:50:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:50:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:50:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-20 18:50:30,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48509485094850946 [2024-06-20 18:50:30,378 INFO L175 Difference]: Start difference. First operand has 167 places, 333 transitions, 3917 flow. Second operand 9 states and 179 transitions. [2024-06-20 18:50:30,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 404 transitions, 5677 flow [2024-06-20 18:50:30,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 404 transitions, 5559 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-06-20 18:50:30,521 INFO L231 Difference]: Finished difference. Result has 172 places, 352 transitions, 4482 flow [2024-06-20 18:50:30,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3799, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4482, PETRI_PLACES=172, PETRI_TRANSITIONS=352} [2024-06-20 18:50:30,521 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 130 predicate places. [2024-06-20 18:50:30,522 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 352 transitions, 4482 flow [2024-06-20 18:50:30,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:50:30,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:50:30,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:50:30,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-20 18:50:30,522 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:50:30,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:50:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1186949292, now seen corresponding path program 6 times [2024-06-20 18:50:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:50:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901091182] [2024-06-20 18:50:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:50:30,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:50:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:50:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:50:43,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:50:43,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901091182] [2024-06-20 18:50:43,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901091182] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:50:43,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:50:43,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:50:43,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652642676] [2024-06-20 18:50:43,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:50:43,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:50:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:50:43,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:50:43,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:50:43,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:50:43,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 352 transitions, 4482 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:50:43,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:50:43,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:50:43,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:50:45,260 INFO L124 PetriNetUnfolderBase]: 2916/4354 cut-off events. [2024-06-20 18:50:45,260 INFO L125 PetriNetUnfolderBase]: For 142518/142598 co-relation queries the response was YES. [2024-06-20 18:50:45,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33077 conditions, 4354 events. 2916/4354 cut-off events. For 142518/142598 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 21822 event pairs, 829 based on Foata normal form. 27/4346 useless extension candidates. Maximal degree in co-relation 32995. Up to 3874 conditions per place. [2024-06-20 18:50:45,299 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 246 selfloop transitions, 91 changer transitions 0/383 dead transitions. [2024-06-20 18:50:45,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 383 transitions, 5364 flow [2024-06-20 18:50:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:50:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:50:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2024-06-20 18:50:45,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44715447154471544 [2024-06-20 18:50:45,302 INFO L175 Difference]: Start difference. First operand has 172 places, 352 transitions, 4482 flow. Second operand 9 states and 165 transitions. [2024-06-20 18:50:45,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 383 transitions, 5364 flow [2024-06-20 18:50:45,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 383 transitions, 5230 flow, removed 60 selfloop flow, removed 2 redundant places. [2024-06-20 18:50:45,508 INFO L231 Difference]: Finished difference. Result has 179 places, 355 transitions, 4618 flow [2024-06-20 18:50:45,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4362, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4618, PETRI_PLACES=179, PETRI_TRANSITIONS=355} [2024-06-20 18:50:45,509 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 137 predicate places. [2024-06-20 18:50:45,509 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 355 transitions, 4618 flow [2024-06-20 18:50:45,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:50:45,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:50:45,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:50:45,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-20 18:50:45,510 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:50:45,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:50:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1693295403, now seen corresponding path program 4 times [2024-06-20 18:50:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:50:45,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930819816] [2024-06-20 18:50:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:50:45,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:50:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:50:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:50:58,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:50:58,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930819816] [2024-06-20 18:50:58,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930819816] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:50:58,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:50:58,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:50:58,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535619592] [2024-06-20 18:50:58,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:50:58,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:50:58,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:50:58,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:50:58,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:50:59,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:50:59,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 355 transitions, 4618 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:50:59,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:50:59,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:50:59,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:51:01,043 INFO L124 PetriNetUnfolderBase]: 3041/4483 cut-off events. [2024-06-20 18:51:01,044 INFO L125 PetriNetUnfolderBase]: For 146884/146899 co-relation queries the response was YES. [2024-06-20 18:51:01,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33257 conditions, 4483 events. 3041/4483 cut-off events. For 146884/146899 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 21861 event pairs, 880 based on Foata normal form. 18/4498 useless extension candidates. Maximal degree in co-relation 33173. Up to 3544 conditions per place. [2024-06-20 18:51:01,083 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 275 selfloop transitions, 128 changer transitions 0/406 dead transitions. [2024-06-20 18:51:01,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 406 transitions, 6114 flow [2024-06-20 18:51:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:51:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:51:01,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 178 transitions. [2024-06-20 18:51:01,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823848238482385 [2024-06-20 18:51:01,094 INFO L175 Difference]: Start difference. First operand has 179 places, 355 transitions, 4618 flow. Second operand 9 states and 178 transitions. [2024-06-20 18:51:01,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 406 transitions, 6114 flow [2024-06-20 18:51:01,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 406 transitions, 5860 flow, removed 38 selfloop flow, removed 7 redundant places. [2024-06-20 18:51:01,285 INFO L231 Difference]: Finished difference. Result has 181 places, 355 transitions, 4630 flow [2024-06-20 18:51:01,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4364, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4630, PETRI_PLACES=181, PETRI_TRANSITIONS=355} [2024-06-20 18:51:01,286 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 139 predicate places. [2024-06-20 18:51:01,286 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 355 transitions, 4630 flow [2024-06-20 18:51:01,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:51:01,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:51:01,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:51:01,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-20 18:51:01,286 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:51:01,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:51:01,286 INFO L85 PathProgramCache]: Analyzing trace with hash -831566846, now seen corresponding path program 7 times [2024-06-20 18:51:01,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:51:01,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766159945] [2024-06-20 18:51:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:51:01,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:51:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:51:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:51:10,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:51:10,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766159945] [2024-06-20 18:51:10,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766159945] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:51:10,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:51:10,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:51:10,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536913840] [2024-06-20 18:51:10,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:51:10,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:51:10,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:51:10,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:51:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:51:10,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:51:10,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 355 transitions, 4630 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:51:10,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:51:10,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:51:10,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:51:13,028 INFO L124 PetriNetUnfolderBase]: 2946/4396 cut-off events. [2024-06-20 18:51:13,028 INFO L125 PetriNetUnfolderBase]: For 159837/159910 co-relation queries the response was YES. [2024-06-20 18:51:13,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33401 conditions, 4396 events. 2946/4396 cut-off events. For 159837/159910 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 22160 event pairs, 876 based on Foata normal form. 20/4364 useless extension candidates. Maximal degree in co-relation 33316. Up to 3855 conditions per place. [2024-06-20 18:51:13,069 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 213 selfloop transitions, 137 changer transitions 0/396 dead transitions. [2024-06-20 18:51:13,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 396 transitions, 5708 flow [2024-06-20 18:51:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:51:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:51:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2024-06-20 18:51:13,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45257452574525747 [2024-06-20 18:51:13,073 INFO L175 Difference]: Start difference. First operand has 181 places, 355 transitions, 4630 flow. Second operand 9 states and 167 transitions. [2024-06-20 18:51:13,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 396 transitions, 5708 flow [2024-06-20 18:51:13,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 396 transitions, 5387 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-06-20 18:51:13,258 INFO L231 Difference]: Finished difference. Result has 183 places, 361 transitions, 4726 flow [2024-06-20 18:51:13,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4309, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4726, PETRI_PLACES=183, PETRI_TRANSITIONS=361} [2024-06-20 18:51:13,259 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 141 predicate places. [2024-06-20 18:51:13,259 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 361 transitions, 4726 flow [2024-06-20 18:51:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:51:13,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:51:13,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:51:13,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-20 18:51:13,260 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:51:13,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:51:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash -827901716, now seen corresponding path program 8 times [2024-06-20 18:51:13,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:51:13,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645475800] [2024-06-20 18:51:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:51:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:51:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:51:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:51:22,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:51:22,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645475800] [2024-06-20 18:51:22,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645475800] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:51:22,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:51:22,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:51:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917346405] [2024-06-20 18:51:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:51:22,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:51:22,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:51:22,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:51:22,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:51:23,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:51:23,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 361 transitions, 4726 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:51:23,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:51:23,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:51:23,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:51:25,114 INFO L124 PetriNetUnfolderBase]: 2911/4352 cut-off events. [2024-06-20 18:51:25,115 INFO L125 PetriNetUnfolderBase]: For 162337/162395 co-relation queries the response was YES. [2024-06-20 18:51:25,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32977 conditions, 4352 events. 2911/4352 cut-off events. For 162337/162395 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 21921 event pairs, 888 based on Foata normal form. 15/4322 useless extension candidates. Maximal degree in co-relation 32891. Up to 3923 conditions per place. [2024-06-20 18:51:25,154 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 255 selfloop transitions, 86 changer transitions 0/387 dead transitions. [2024-06-20 18:51:25,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 387 transitions, 5528 flow [2024-06-20 18:51:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:51:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:51:25,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2024-06-20 18:51:25,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4420731707317073 [2024-06-20 18:51:25,157 INFO L175 Difference]: Start difference. First operand has 183 places, 361 transitions, 4726 flow. Second operand 8 states and 145 transitions. [2024-06-20 18:51:25,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 387 transitions, 5528 flow [2024-06-20 18:51:25,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 387 transitions, 5222 flow, removed 60 selfloop flow, removed 7 redundant places. [2024-06-20 18:51:25,333 INFO L231 Difference]: Finished difference. Result has 184 places, 361 transitions, 4631 flow [2024-06-20 18:51:25,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4420, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4631, PETRI_PLACES=184, PETRI_TRANSITIONS=361} [2024-06-20 18:51:25,333 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 142 predicate places. [2024-06-20 18:51:25,333 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 361 transitions, 4631 flow [2024-06-20 18:51:25,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:51:25,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:51:25,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:51:25,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-20 18:51:25,334 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:51:25,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:51:25,334 INFO L85 PathProgramCache]: Analyzing trace with hash 21434265, now seen corresponding path program 5 times [2024-06-20 18:51:25,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:51:25,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765942972] [2024-06-20 18:51:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:51:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:51:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:51:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:51:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:51:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765942972] [2024-06-20 18:51:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765942972] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:51:34,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:51:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:51:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274156999] [2024-06-20 18:51:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:51:34,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:51:34,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:51:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:51:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:51:34,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:51:34,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 361 transitions, 4631 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:51:34,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:51:34,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:51:34,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:51:37,004 INFO L124 PetriNetUnfolderBase]: 3146/4639 cut-off events. [2024-06-20 18:51:37,005 INFO L125 PetriNetUnfolderBase]: For 148597/148600 co-relation queries the response was YES. [2024-06-20 18:51:37,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34050 conditions, 4639 events. 3146/4639 cut-off events. For 148597/148600 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 22813 event pairs, 929 based on Foata normal form. 14/4652 useless extension candidates. Maximal degree in co-relation 33964. Up to 4172 conditions per place. [2024-06-20 18:51:37,044 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 300 selfloop transitions, 116 changer transitions 0/419 dead transitions. [2024-06-20 18:51:37,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 419 transitions, 6099 flow [2024-06-20 18:51:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:51:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:51:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2024-06-20 18:51:37,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43360433604336046 [2024-06-20 18:51:37,046 INFO L175 Difference]: Start difference. First operand has 184 places, 361 transitions, 4631 flow. Second operand 9 states and 160 transitions. [2024-06-20 18:51:37,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 419 transitions, 6099 flow [2024-06-20 18:51:37,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 419 transitions, 5851 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-06-20 18:51:37,218 INFO L231 Difference]: Finished difference. Result has 187 places, 384 transitions, 5076 flow [2024-06-20 18:51:37,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4395, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5076, PETRI_PLACES=187, PETRI_TRANSITIONS=384} [2024-06-20 18:51:37,219 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 145 predicate places. [2024-06-20 18:51:37,219 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 384 transitions, 5076 flow [2024-06-20 18:51:37,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:51:37,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:51:37,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:51:37,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-20 18:51:37,220 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:51:37,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:51:37,220 INFO L85 PathProgramCache]: Analyzing trace with hash -827757411, now seen corresponding path program 6 times [2024-06-20 18:51:37,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:51:37,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447621751] [2024-06-20 18:51:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:51:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:51:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:51:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:51:46,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:51:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447621751] [2024-06-20 18:51:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447621751] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:51:46,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:51:46,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:51:46,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319066686] [2024-06-20 18:51:46,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:51:46,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:51:46,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:51:46,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:51:46,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:51:46,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:51:46,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 384 transitions, 5076 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:51:46,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:51:46,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:51:46,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:51:48,643 INFO L124 PetriNetUnfolderBase]: 3334/4907 cut-off events. [2024-06-20 18:51:48,643 INFO L125 PetriNetUnfolderBase]: For 154914/154933 co-relation queries the response was YES. [2024-06-20 18:51:48,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37503 conditions, 4907 events. 3334/4907 cut-off events. For 154914/154933 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 24323 event pairs, 906 based on Foata normal form. 24/4929 useless extension candidates. Maximal degree in co-relation 37415. Up to 3699 conditions per place. [2024-06-20 18:51:48,683 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 268 selfloop transitions, 185 changer transitions 0/456 dead transitions. [2024-06-20 18:51:48,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 456 transitions, 6987 flow [2024-06-20 18:51:48,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:51:48,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:51:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-20 18:51:48,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4715447154471545 [2024-06-20 18:51:48,684 INFO L175 Difference]: Start difference. First operand has 187 places, 384 transitions, 5076 flow. Second operand 9 states and 174 transitions. [2024-06-20 18:51:48,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 456 transitions, 6987 flow [2024-06-20 18:51:48,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 456 transitions, 6828 flow, removed 74 selfloop flow, removed 3 redundant places. [2024-06-20 18:51:48,872 INFO L231 Difference]: Finished difference. Result has 194 places, 405 transitions, 5684 flow [2024-06-20 18:51:48,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=4953, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5684, PETRI_PLACES=194, PETRI_TRANSITIONS=405} [2024-06-20 18:51:48,873 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 152 predicate places. [2024-06-20 18:51:48,873 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 405 transitions, 5684 flow [2024-06-20 18:51:48,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:51:48,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:51:48,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:51:48,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-20 18:51:48,873 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:51:48,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:51:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash -827757566, now seen corresponding path program 9 times [2024-06-20 18:51:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:51:48,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256515809] [2024-06-20 18:51:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:51:48,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:51:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:51:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:51:58,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:51:58,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256515809] [2024-06-20 18:51:58,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256515809] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:51:58,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:51:58,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:51:58,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795982950] [2024-06-20 18:51:58,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:51:58,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:51:58,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:51:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:51:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:51:58,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:51:58,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 405 transitions, 5684 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:51:58,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:51:58,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:51:58,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:00,411 INFO L124 PetriNetUnfolderBase]: 3197/4770 cut-off events. [2024-06-20 18:52:00,412 INFO L125 PetriNetUnfolderBase]: For 147059/147142 co-relation queries the response was YES. [2024-06-20 18:52:00,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37359 conditions, 4770 events. 3197/4770 cut-off events. For 147059/147142 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 24305 event pairs, 861 based on Foata normal form. 26/4761 useless extension candidates. Maximal degree in co-relation 37268. Up to 4218 conditions per place. [2024-06-20 18:52:00,458 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 283 selfloop transitions, 91 changer transitions 0/434 dead transitions. [2024-06-20 18:52:00,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 434 transitions, 6654 flow [2024-06-20 18:52:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:52:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:52:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2024-06-20 18:52:00,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451219512195122 [2024-06-20 18:52:00,461 INFO L175 Difference]: Start difference. First operand has 194 places, 405 transitions, 5684 flow. Second operand 8 states and 146 transitions. [2024-06-20 18:52:00,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 434 transitions, 6654 flow [2024-06-20 18:52:00,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 434 transitions, 6364 flow, removed 91 selfloop flow, removed 4 redundant places. [2024-06-20 18:52:00,656 INFO L231 Difference]: Finished difference. Result has 198 places, 408 transitions, 5665 flow [2024-06-20 18:52:00,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5394, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5665, PETRI_PLACES=198, PETRI_TRANSITIONS=408} [2024-06-20 18:52:00,656 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 156 predicate places. [2024-06-20 18:52:00,656 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 408 transitions, 5665 flow [2024-06-20 18:52:00,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:52:00,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:52:00,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:52:00,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-20 18:52:00,657 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:52:00,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:52:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash -827751831, now seen corresponding path program 7 times [2024-06-20 18:52:00,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:52:00,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850470653] [2024-06-20 18:52:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:52:00,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:52:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:52:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:52:10,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:52:10,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850470653] [2024-06-20 18:52:10,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850470653] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:52:10,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:52:10,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:52:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199482920] [2024-06-20 18:52:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:52:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:52:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:52:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:52:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:52:10,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:52:10,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 408 transitions, 5665 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:10,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:52:10,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:52:10,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:12,299 INFO L124 PetriNetUnfolderBase]: 3357/4941 cut-off events. [2024-06-20 18:52:12,299 INFO L125 PetriNetUnfolderBase]: For 146002/146021 co-relation queries the response was YES. [2024-06-20 18:52:12,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37772 conditions, 4941 events. 3357/4941 cut-off events. For 146002/146021 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 24525 event pairs, 854 based on Foata normal form. 24/4963 useless extension candidates. Maximal degree in co-relation 37680. Up to 3736 conditions per place. [2024-06-20 18:52:12,345 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 251 selfloop transitions, 211 changer transitions 0/465 dead transitions. [2024-06-20 18:52:12,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 465 transitions, 7255 flow [2024-06-20 18:52:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-20 18:52:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-20 18:52:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 172 transitions. [2024-06-20 18:52:12,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2024-06-20 18:52:12,347 INFO L175 Difference]: Start difference. First operand has 198 places, 408 transitions, 5665 flow. Second operand 9 states and 172 transitions. [2024-06-20 18:52:12,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 465 transitions, 7255 flow [2024-06-20 18:52:12,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 465 transitions, 7024 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-06-20 18:52:12,511 INFO L231 Difference]: Finished difference. Result has 201 places, 417 transitions, 5995 flow [2024-06-20 18:52:12,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5434, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5995, PETRI_PLACES=201, PETRI_TRANSITIONS=417} [2024-06-20 18:52:12,512 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 159 predicate places. [2024-06-20 18:52:12,512 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 417 transitions, 5995 flow [2024-06-20 18:52:12,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:12,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:52:12,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:52:12,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-20 18:52:12,513 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:52:12,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:52:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1074997412, now seen corresponding path program 10 times [2024-06-20 18:52:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:52:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671630820] [2024-06-20 18:52:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:52:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:52:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:52:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:52:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:52:22,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671630820] [2024-06-20 18:52:22,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671630820] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:52:22,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:52:22,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:52:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116897643] [2024-06-20 18:52:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:52:22,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:52:22,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:52:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:52:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:52:22,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:52:22,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 417 transitions, 5995 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:52:22,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:52:22,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:52:22,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:24,902 INFO L124 PetriNetUnfolderBase]: 3212/4789 cut-off events. [2024-06-20 18:52:24,902 INFO L125 PetriNetUnfolderBase]: For 155363/155427 co-relation queries the response was YES. [2024-06-20 18:52:24,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37807 conditions, 4789 events. 3212/4789 cut-off events. For 155363/155427 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 24483 event pairs, 1077 based on Foata normal form. 22/4769 useless extension candidates. Maximal degree in co-relation 37714. Up to 4407 conditions per place. [2024-06-20 18:52:24,944 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 355 selfloop transitions, 24 changer transitions 0/442 dead transitions. [2024-06-20 18:52:24,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 442 transitions, 6949 flow [2024-06-20 18:52:24,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-20 18:52:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-20 18:52:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2024-06-20 18:52:24,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42378048780487804 [2024-06-20 18:52:24,947 INFO L175 Difference]: Start difference. First operand has 201 places, 417 transitions, 5995 flow. Second operand 8 states and 139 transitions. [2024-06-20 18:52:24,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 442 transitions, 6949 flow [2024-06-20 18:52:25,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 442 transitions, 6581 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-06-20 18:52:25,148 INFO L231 Difference]: Finished difference. Result has 203 places, 420 transitions, 5768 flow [2024-06-20 18:52:25,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5629, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5768, PETRI_PLACES=203, PETRI_TRANSITIONS=420} [2024-06-20 18:52:25,149 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 161 predicate places. [2024-06-20 18:52:25,149 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 420 transitions, 5768 flow [2024-06-20 18:52:25,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-06-20 18:52:25,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:52:25,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:52:25,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-20 18:52:25,150 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:52:25,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:52:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash 228237435, now seen corresponding path program 8 times [2024-06-20 18:52:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:52:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10674988] [2024-06-20 18:52:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:52:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:52:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:52:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:52:34,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:52:34,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10674988] [2024-06-20 18:52:34,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10674988] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:52:34,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:52:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:52:34,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267787638] [2024-06-20 18:52:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:52:34,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:52:34,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:52:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:52:34,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:52:34,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:52:34,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 420 transitions, 5768 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:34,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:52:34,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:52:34,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:36,587 INFO L124 PetriNetUnfolderBase]: 3402/5010 cut-off events. [2024-06-20 18:52:36,588 INFO L125 PetriNetUnfolderBase]: For 155872/155872 co-relation queries the response was YES. [2024-06-20 18:52:36,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38647 conditions, 5010 events. 3402/5010 cut-off events. For 155872/155872 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 24935 event pairs, 1167 based on Foata normal form. 8/5017 useless extension candidates. Maximal degree in co-relation 38553. Up to 4833 conditions per place. [2024-06-20 18:52:36,630 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 420 selfloop transitions, 36 changer transitions 0/459 dead transitions. [2024-06-20 18:52:36,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 459 transitions, 7049 flow [2024-06-20 18:52:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:52:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:52:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 163 transitions. [2024-06-20 18:52:36,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3975609756097561 [2024-06-20 18:52:36,632 INFO L175 Difference]: Start difference. First operand has 203 places, 420 transitions, 5768 flow. Second operand 10 states and 163 transitions. [2024-06-20 18:52:36,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 459 transitions, 7049 flow [2024-06-20 18:52:36,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 459 transitions, 6932 flow, removed 37 selfloop flow, removed 6 redundant places. [2024-06-20 18:52:36,811 INFO L231 Difference]: Finished difference. Result has 207 places, 428 transitions, 5894 flow [2024-06-20 18:52:36,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5651, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5894, PETRI_PLACES=207, PETRI_TRANSITIONS=428} [2024-06-20 18:52:36,812 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 165 predicate places. [2024-06-20 18:52:36,812 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 428 transitions, 5894 flow [2024-06-20 18:52:36,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:36,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:52:36,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:52:36,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-20 18:52:36,813 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:52:36,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:52:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash 220885785, now seen corresponding path program 9 times [2024-06-20 18:52:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:52:36,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859436752] [2024-06-20 18:52:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:52:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:52:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:52:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:52:45,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:52:45,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859436752] [2024-06-20 18:52:45,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859436752] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:52:45,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:52:45,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:52:45,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874912332] [2024-06-20 18:52:45,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:52:45,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:52:45,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:52:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:52:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:52:46,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:52:46,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 428 transitions, 5894 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:46,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:52:46,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:52:46,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:48,125 INFO L124 PetriNetUnfolderBase]: 3498/5147 cut-off events. [2024-06-20 18:52:48,126 INFO L125 PetriNetUnfolderBase]: For 170696/170696 co-relation queries the response was YES. [2024-06-20 18:52:48,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40331 conditions, 5147 events. 3498/5147 cut-off events. For 170696/170696 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 25684 event pairs, 1168 based on Foata normal form. 10/5156 useless extension candidates. Maximal degree in co-relation 40236. Up to 4673 conditions per place. [2024-06-20 18:52:48,171 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 413 selfloop transitions, 77 changer transitions 0/493 dead transitions. [2024-06-20 18:52:48,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 493 transitions, 7764 flow [2024-06-20 18:52:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:52:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:52:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 174 transitions. [2024-06-20 18:52:48,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.424390243902439 [2024-06-20 18:52:48,173 INFO L175 Difference]: Start difference. First operand has 207 places, 428 transitions, 5894 flow. Second operand 10 states and 174 transitions. [2024-06-20 18:52:48,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 493 transitions, 7764 flow [2024-06-20 18:52:48,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 493 transitions, 7596 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-06-20 18:52:48,358 INFO L231 Difference]: Finished difference. Result has 209 places, 447 transitions, 6310 flow [2024-06-20 18:52:48,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5726, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6310, PETRI_PLACES=209, PETRI_TRANSITIONS=447} [2024-06-20 18:52:48,358 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 167 predicate places. [2024-06-20 18:52:48,358 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 447 transitions, 6310 flow [2024-06-20 18:52:48,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:48,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:52:48,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:52:48,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-20 18:52:48,359 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:52:48,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:52:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 228504562, now seen corresponding path program 1 times [2024-06-20 18:52:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:52:48,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71624039] [2024-06-20 18:52:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:52:48,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:52:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:52:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:52:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:52:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71624039] [2024-06-20 18:52:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71624039] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:52:57,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:52:57,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:52:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302680774] [2024-06-20 18:52:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:52:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:52:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:52:57,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:52:57,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:52:57,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:52:57,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 447 transitions, 6310 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:52:57,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:52:57,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:52:57,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:52:59,776 INFO L124 PetriNetUnfolderBase]: 3500/5150 cut-off events. [2024-06-20 18:52:59,776 INFO L125 PetriNetUnfolderBase]: For 177863/177863 co-relation queries the response was YES. [2024-06-20 18:52:59,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40958 conditions, 5150 events. 3500/5150 cut-off events. For 177863/177863 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 25738 event pairs, 1172 based on Foata normal form. 3/5152 useless extension candidates. Maximal degree in co-relation 40861. Up to 4986 conditions per place. [2024-06-20 18:52:59,822 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 435 selfloop transitions, 35 changer transitions 0/473 dead transitions. [2024-06-20 18:52:59,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 473 transitions, 7510 flow [2024-06-20 18:52:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:52:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:52:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-20 18:52:59,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:52:59,823 INFO L175 Difference]: Start difference. First operand has 209 places, 447 transitions, 6310 flow. Second operand 7 states and 126 transitions. [2024-06-20 18:52:59,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 473 transitions, 7510 flow [2024-06-20 18:53:00,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 473 transitions, 7102 flow, removed 110 selfloop flow, removed 7 redundant places. [2024-06-20 18:53:00,046 INFO L231 Difference]: Finished difference. Result has 209 places, 451 transitions, 6079 flow [2024-06-20 18:53:00,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5902, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6079, PETRI_PLACES=209, PETRI_TRANSITIONS=451} [2024-06-20 18:53:00,047 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 167 predicate places. [2024-06-20 18:53:00,047 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 451 transitions, 6079 flow [2024-06-20 18:53:00,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:53:00,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:53:00,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:53:00,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-20 18:53:00,048 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:53:00,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:53:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash 235917363, now seen corresponding path program 10 times [2024-06-20 18:53:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:53:00,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259284352] [2024-06-20 18:53:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:53:00,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:53:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:53:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:53:08,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:53:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259284352] [2024-06-20 18:53:08,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259284352] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:53:08,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:53:08,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-20 18:53:08,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83394253] [2024-06-20 18:53:08,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:53:08,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-20 18:53:08,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:53:08,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-20 18:53:08,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-20 18:53:08,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:53:08,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 451 transitions, 6079 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:53:08,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:53:08,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:53:08,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:53:10,986 INFO L124 PetriNetUnfolderBase]: 3480/5124 cut-off events. [2024-06-20 18:53:10,986 INFO L125 PetriNetUnfolderBase]: For 177898/177898 co-relation queries the response was YES. [2024-06-20 18:53:11,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39704 conditions, 5124 events. 3480/5124 cut-off events. For 177898/177898 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 25571 event pairs, 1161 based on Foata normal form. 10/5133 useless extension candidates. Maximal degree in co-relation 39606. Up to 4667 conditions per place. [2024-06-20 18:53:11,032 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 409 selfloop transitions, 80 changer transitions 0/492 dead transitions. [2024-06-20 18:53:11,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 492 transitions, 7490 flow [2024-06-20 18:53:11,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:53:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:53:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 172 transitions. [2024-06-20 18:53:11,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4195121951219512 [2024-06-20 18:53:11,034 INFO L175 Difference]: Start difference. First operand has 209 places, 451 transitions, 6079 flow. Second operand 10 states and 172 transitions. [2024-06-20 18:53:11,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 492 transitions, 7490 flow [2024-06-20 18:53:11,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 492 transitions, 7334 flow, removed 50 selfloop flow, removed 5 redundant places. [2024-06-20 18:53:11,237 INFO L231 Difference]: Finished difference. Result has 214 places, 451 transitions, 6099 flow [2024-06-20 18:53:11,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6099, PETRI_PLACES=214, PETRI_TRANSITIONS=451} [2024-06-20 18:53:11,238 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 172 predicate places. [2024-06-20 18:53:11,238 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 451 transitions, 6099 flow [2024-06-20 18:53:11,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:53:11,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:53:11,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:53:11,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-20 18:53:11,238 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)] === [2024-06-20 18:53:11,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:53:11,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1291660321, now seen corresponding path program 1 times [2024-06-20 18:53:11,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:53:11,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40348242] [2024-06-20 18:53:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:53:11,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:53:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:53:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:53:24,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:53:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40348242] [2024-06-20 18:53:24,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40348242] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:53:24,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:53:24,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-20 18:53:24,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3796345] [2024-06-20 18:53:24,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:53:24,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-20 18:53:24,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:53:24,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-20 18:53:24,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-06-20 18:53:24,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:53:24,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 451 transitions, 6099 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:53:24,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:53:24,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:53:24,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:53:26,814 INFO L124 PetriNetUnfolderBase]: 3273/4887 cut-off events. [2024-06-20 18:53:26,815 INFO L125 PetriNetUnfolderBase]: For 181748/181791 co-relation queries the response was YES. [2024-06-20 18:53:26,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38544 conditions, 4887 events. 3273/4887 cut-off events. For 181748/181791 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 24906 event pairs, 1126 based on Foata normal form. 27/4887 useless extension candidates. Maximal degree in co-relation 38445. Up to 4658 conditions per place. [2024-06-20 18:53:26,864 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 418 selfloop transitions, 12 changer transitions 0/464 dead transitions. [2024-06-20 18:53:26,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 464 transitions, 7027 flow [2024-06-20 18:53:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:53:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:53:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2024-06-20 18:53:26,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-20 18:53:26,865 INFO L175 Difference]: Start difference. First operand has 214 places, 451 transitions, 6099 flow. Second operand 6 states and 102 transitions. [2024-06-20 18:53:26,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 464 transitions, 7027 flow [2024-06-20 18:53:27,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 464 transitions, 6845 flow, removed 13 selfloop flow, removed 9 redundant places. [2024-06-20 18:53:27,064 INFO L231 Difference]: Finished difference. Result has 211 places, 454 transitions, 5985 flow [2024-06-20 18:53:27,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5917, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5985, PETRI_PLACES=211, PETRI_TRANSITIONS=454} [2024-06-20 18:53:27,065 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 169 predicate places. [2024-06-20 18:53:27,065 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 454 transitions, 5985 flow [2024-06-20 18:53:27,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:53:27,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:53:27,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:53:27,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-20 18:53:27,066 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:53:27,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:53:27,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1528755520, now seen corresponding path program 1 times [2024-06-20 18:53:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:53:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452829795] [2024-06-20 18:53:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:53:27,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:53:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:53:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:53:38,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:53:38,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452829795] [2024-06-20 18:53:38,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452829795] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:53:38,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:53:38,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:53:38,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799184791] [2024-06-20 18:53:38,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:53:38,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:53:38,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:53:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:53:38,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:53:38,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:53:38,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 454 transitions, 5985 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:53:38,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:53:38,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:53:38,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:53:41,072 INFO L124 PetriNetUnfolderBase]: 3416/5097 cut-off events. [2024-06-20 18:53:41,072 INFO L125 PetriNetUnfolderBase]: For 203330/203408 co-relation queries the response was YES. [2024-06-20 18:53:41,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40334 conditions, 5097 events. 3416/5097 cut-off events. For 203330/203408 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 26370 event pairs, 733 based on Foata normal form. 24/5071 useless extension candidates. Maximal degree in co-relation 40235. Up to 4255 conditions per place. [2024-06-20 18:53:41,119 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 296 selfloop transitions, 141 changer transitions 0/509 dead transitions. [2024-06-20 18:53:41,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 509 transitions, 7493 flow [2024-06-20 18:53:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:53:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:53:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 203 transitions. [2024-06-20 18:53:41,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4501108647450111 [2024-06-20 18:53:41,122 INFO L175 Difference]: Start difference. First operand has 211 places, 454 transitions, 5985 flow. Second operand 11 states and 203 transitions. [2024-06-20 18:53:41,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 509 transitions, 7493 flow [2024-06-20 18:53:41,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 509 transitions, 7447 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-06-20 18:53:41,335 INFO L231 Difference]: Finished difference. Result has 220 places, 463 transitions, 6523 flow [2024-06-20 18:53:41,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=5939, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6523, PETRI_PLACES=220, PETRI_TRANSITIONS=463} [2024-06-20 18:53:41,335 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 178 predicate places. [2024-06-20 18:53:41,335 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 463 transitions, 6523 flow [2024-06-20 18:53:41,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:53:41,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:53:41,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:53:41,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-20 18:53:41,336 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:53:41,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:53:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1403190236, now seen corresponding path program 1 times [2024-06-20 18:53:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:53:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086865694] [2024-06-20 18:53:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:53:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:53:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:53:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:53:52,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:53:52,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086865694] [2024-06-20 18:53:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086865694] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:53:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:53:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:53:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446196359] [2024-06-20 18:53:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:53:52,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:53:52,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:53:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:53:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:53:52,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:53:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 463 transitions, 6523 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:53:52,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:53:52,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:53:52,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:53:55,248 INFO L124 PetriNetUnfolderBase]: 3691/5434 cut-off events. [2024-06-20 18:53:55,248 INFO L125 PetriNetUnfolderBase]: For 216777/216785 co-relation queries the response was YES. [2024-06-20 18:53:55,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44150 conditions, 5434 events. 3691/5434 cut-off events. For 216777/216785 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 27401 event pairs, 875 based on Foata normal form. 12/5445 useless extension candidates. Maximal degree in co-relation 44048. Up to 4605 conditions per place. [2024-06-20 18:53:55,394 INFO L140 encePairwiseOnDemand]: 25/41 looper letters, 428 selfloop transitions, 133 changer transitions 0/564 dead transitions. [2024-06-20 18:53:55,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 564 transitions, 9163 flow [2024-06-20 18:53:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:53:55,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:53:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 211 transitions. [2024-06-20 18:53:55,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4678492239467849 [2024-06-20 18:53:55,396 INFO L175 Difference]: Start difference. First operand has 220 places, 463 transitions, 6523 flow. Second operand 11 states and 211 transitions. [2024-06-20 18:53:55,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 564 transitions, 9163 flow [2024-06-20 18:53:55,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 564 transitions, 8854 flow, removed 74 selfloop flow, removed 7 redundant places. [2024-06-20 18:53:55,652 INFO L231 Difference]: Finished difference. Result has 228 places, 504 transitions, 7274 flow [2024-06-20 18:53:55,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6214, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7274, PETRI_PLACES=228, PETRI_TRANSITIONS=504} [2024-06-20 18:53:55,653 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 186 predicate places. [2024-06-20 18:53:55,653 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 504 transitions, 7274 flow [2024-06-20 18:53:55,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:53:55,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:53:55,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:53:55,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-20 18:53:55,653 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:53:55,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:53:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1403318700, now seen corresponding path program 2 times [2024-06-20 18:53:55,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:53:55,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449173762] [2024-06-20 18:53:55,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:53:55,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:53:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:54:08,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:54:08,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:54:08,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449173762] [2024-06-20 18:54:08,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449173762] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:54:08,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:54:08,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:54:08,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037404171] [2024-06-20 18:54:08,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:54:08,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:54:08,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:54:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:54:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:54:08,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:54:08,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 504 transitions, 7274 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:08,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:54:08,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:54:08,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:54:10,852 INFO L124 PetriNetUnfolderBase]: 3692/5504 cut-off events. [2024-06-20 18:54:10,852 INFO L125 PetriNetUnfolderBase]: For 245242/245301 co-relation queries the response was YES. [2024-06-20 18:54:10,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46655 conditions, 5504 events. 3692/5504 cut-off events. For 245242/245301 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28771 event pairs, 919 based on Foata normal form. 24/5489 useless extension candidates. Maximal degree in co-relation 46548. Up to 4662 conditions per place. [2024-06-20 18:54:10,911 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 330 selfloop transitions, 146 changer transitions 0/563 dead transitions. [2024-06-20 18:54:10,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 563 transitions, 8814 flow [2024-06-20 18:54:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:54:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:54:10,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 203 transitions. [2024-06-20 18:54:10,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4501108647450111 [2024-06-20 18:54:10,914 INFO L175 Difference]: Start difference. First operand has 228 places, 504 transitions, 7274 flow. Second operand 11 states and 203 transitions. [2024-06-20 18:54:10,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 563 transitions, 8814 flow [2024-06-20 18:54:11,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 563 transitions, 8600 flow, removed 79 selfloop flow, removed 4 redundant places. [2024-06-20 18:54:11,259 INFO L231 Difference]: Finished difference. Result has 236 places, 518 transitions, 7668 flow [2024-06-20 18:54:11,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7070, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7668, PETRI_PLACES=236, PETRI_TRANSITIONS=518} [2024-06-20 18:54:11,260 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 194 predicate places. [2024-06-20 18:54:11,260 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 518 transitions, 7668 flow [2024-06-20 18:54:11,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:11,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:54:11,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:54:11,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-20 18:54:11,261 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:54:11,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:54:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1403229420, now seen corresponding path program 3 times [2024-06-20 18:54:11,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:54:11,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781868603] [2024-06-20 18:54:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:54:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:54:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:54:23,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:54:23,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:54:23,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781868603] [2024-06-20 18:54:23,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781868603] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:54:23,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:54:23,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:54:23,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189970473] [2024-06-20 18:54:23,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:54:23,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:54:23,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:54:23,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:54:23,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:54:24,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:54:24,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 518 transitions, 7668 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:24,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:54:24,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:54:24,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:54:26,594 INFO L124 PetriNetUnfolderBase]: 3695/5512 cut-off events. [2024-06-20 18:54:26,594 INFO L125 PetriNetUnfolderBase]: For 253292/253338 co-relation queries the response was YES. [2024-06-20 18:54:26,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47114 conditions, 5512 events. 3695/5512 cut-off events. For 253292/253338 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 28792 event pairs, 935 based on Foata normal form. 20/5493 useless extension candidates. Maximal degree in co-relation 47004. Up to 4772 conditions per place. [2024-06-20 18:54:26,660 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 335 selfloop transitions, 139 changer transitions 0/561 dead transitions. [2024-06-20 18:54:26,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 561 transitions, 8872 flow [2024-06-20 18:54:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:54:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:54:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 199 transitions. [2024-06-20 18:54:26,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44124168514412415 [2024-06-20 18:54:26,663 INFO L175 Difference]: Start difference. First operand has 236 places, 518 transitions, 7668 flow. Second operand 11 states and 199 transitions. [2024-06-20 18:54:26,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 561 transitions, 8872 flow [2024-06-20 18:54:27,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 561 transitions, 8622 flow, removed 44 selfloop flow, removed 7 redundant places. [2024-06-20 18:54:27,051 INFO L231 Difference]: Finished difference. Result has 240 places, 520 transitions, 7771 flow [2024-06-20 18:54:27,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7418, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7771, PETRI_PLACES=240, PETRI_TRANSITIONS=520} [2024-06-20 18:54:27,051 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 198 predicate places. [2024-06-20 18:54:27,051 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 520 transitions, 7771 flow [2024-06-20 18:54:27,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:27,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:54:27,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:54:27,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-20 18:54:27,052 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:54:27,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:54:27,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1929429948, now seen corresponding path program 4 times [2024-06-20 18:54:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:54:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391047681] [2024-06-20 18:54:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:54:27,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:54:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:54:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:54:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:54:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391047681] [2024-06-20 18:54:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391047681] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:54:40,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:54:40,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:54:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503028930] [2024-06-20 18:54:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:54:40,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:54:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:54:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:54:40,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:54:40,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:54:40,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 520 transitions, 7771 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:40,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:54:40,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:54:40,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:54:43,441 INFO L124 PetriNetUnfolderBase]: 3841/5750 cut-off events. [2024-06-20 18:54:43,441 INFO L125 PetriNetUnfolderBase]: For 271562/271603 co-relation queries the response was YES. [2024-06-20 18:54:43,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49541 conditions, 5750 events. 3841/5750 cut-off events. For 271562/271603 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 30562 event pairs, 963 based on Foata normal form. 20/5739 useless extension candidates. Maximal degree in co-relation 49429. Up to 4956 conditions per place. [2024-06-20 18:54:43,501 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 383 selfloop transitions, 119 changer transitions 0/589 dead transitions. [2024-06-20 18:54:43,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 589 transitions, 9557 flow [2024-06-20 18:54:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 18:54:43,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 18:54:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 216 transitions. [2024-06-20 18:54:43,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-06-20 18:54:43,504 INFO L175 Difference]: Start difference. First operand has 240 places, 520 transitions, 7771 flow. Second operand 12 states and 216 transitions. [2024-06-20 18:54:43,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 589 transitions, 9557 flow [2024-06-20 18:54:43,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 589 transitions, 9150 flow, removed 66 selfloop flow, removed 9 redundant places. [2024-06-20 18:54:43,921 INFO L231 Difference]: Finished difference. Result has 244 places, 542 transitions, 8129 flow [2024-06-20 18:54:43,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7412, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8129, PETRI_PLACES=244, PETRI_TRANSITIONS=542} [2024-06-20 18:54:43,921 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 202 predicate places. [2024-06-20 18:54:43,921 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 542 transitions, 8129 flow [2024-06-20 18:54:43,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:54:43,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:54:43,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:54:43,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-20 18:54:43,922 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:54:43,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:54:43,922 INFO L85 PathProgramCache]: Analyzing trace with hash -443225886, now seen corresponding path program 2 times [2024-06-20 18:54:43,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:54:43,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607663717] [2024-06-20 18:54:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:54:43,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:54:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:54:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:54:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:54:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607663717] [2024-06-20 18:54:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607663717] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:54:56,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:54:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:54:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516266985] [2024-06-20 18:54:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:54:56,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:54:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:54:56,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:54:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:54:56,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:54:56,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 542 transitions, 8129 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:54:56,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:54:56,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:54:56,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:54:59,508 INFO L124 PetriNetUnfolderBase]: 4241/6267 cut-off events. [2024-06-20 18:54:59,508 INFO L125 PetriNetUnfolderBase]: For 300195/300203 co-relation queries the response was YES. [2024-06-20 18:54:59,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54452 conditions, 6267 events. 4241/6267 cut-off events. For 300195/300203 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 32959 event pairs, 1049 based on Foata normal form. 16/6282 useless extension candidates. Maximal degree in co-relation 54338. Up to 5532 conditions per place. [2024-06-20 18:54:59,579 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 478 selfloop transitions, 163 changer transitions 0/644 dead transitions. [2024-06-20 18:54:59,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 644 transitions, 10602 flow [2024-06-20 18:54:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-20 18:54:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-20 18:54:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 232 transitions. [2024-06-20 18:54:59,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4352720450281426 [2024-06-20 18:54:59,580 INFO L175 Difference]: Start difference. First operand has 244 places, 542 transitions, 8129 flow. Second operand 13 states and 232 transitions. [2024-06-20 18:54:59,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 644 transitions, 10602 flow [2024-06-20 18:55:00,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 644 transitions, 10405 flow, removed 44 selfloop flow, removed 7 redundant places. [2024-06-20 18:55:00,012 INFO L231 Difference]: Finished difference. Result has 252 places, 578 transitions, 8841 flow [2024-06-20 18:55:00,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7932, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8841, PETRI_PLACES=252, PETRI_TRANSITIONS=578} [2024-06-20 18:55:00,013 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 210 predicate places. [2024-06-20 18:55:00,013 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 578 transitions, 8841 flow [2024-06-20 18:55:00,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:55:00,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:55:00,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:55:00,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-20 18:55:00,014 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:55:00,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:55:00,014 INFO L85 PathProgramCache]: Analyzing trace with hash -443229730, now seen corresponding path program 5 times [2024-06-20 18:55:00,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:55:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591599218] [2024-06-20 18:55:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:55:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:55:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:55:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:55:13,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:55:13,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591599218] [2024-06-20 18:55:13,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591599218] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:55:13,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:55:13,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:55:13,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707533793] [2024-06-20 18:55:13,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:55:13,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:55:13,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:55:13,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:55:13,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:55:13,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:55:13,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 578 transitions, 8841 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:55:13,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:55:13,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:55:13,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:55:16,370 INFO L124 PetriNetUnfolderBase]: 4139/6193 cut-off events. [2024-06-20 18:55:16,370 INFO L125 PetriNetUnfolderBase]: For 325958/325999 co-relation queries the response was YES. [2024-06-20 18:55:16,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55721 conditions, 6193 events. 4139/6193 cut-off events. For 325958/325999 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 33448 event pairs, 1047 based on Foata normal form. 22/6184 useless extension candidates. Maximal degree in co-relation 55603. Up to 5468 conditions per place. [2024-06-20 18:55:16,439 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 421 selfloop transitions, 108 changer transitions 0/627 dead transitions. [2024-06-20 18:55:16,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 627 transitions, 10287 flow [2024-06-20 18:55:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 18:55:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 18:55:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 212 transitions. [2024-06-20 18:55:16,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43089430894308944 [2024-06-20 18:55:16,442 INFO L175 Difference]: Start difference. First operand has 252 places, 578 transitions, 8841 flow. Second operand 12 states and 212 transitions. [2024-06-20 18:55:16,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 627 transitions, 10287 flow [2024-06-20 18:55:16,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 627 transitions, 10002 flow, removed 73 selfloop flow, removed 8 redundant places. [2024-06-20 18:55:16,910 INFO L231 Difference]: Finished difference. Result has 256 places, 584 transitions, 8998 flow [2024-06-20 18:55:16,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8556, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8998, PETRI_PLACES=256, PETRI_TRANSITIONS=584} [2024-06-20 18:55:16,911 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 214 predicate places. [2024-06-20 18:55:16,911 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 584 transitions, 8998 flow [2024-06-20 18:55:16,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:55:16,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:55:16,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:55:16,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-20 18:55:16,911 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:55:16,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:55:16,911 INFO L85 PathProgramCache]: Analyzing trace with hash -356424336, now seen corresponding path program 3 times [2024-06-20 18:55:16,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:55:16,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957141212] [2024-06-20 18:55:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:55:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:55:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:55:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:55:29,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:55:29,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957141212] [2024-06-20 18:55:29,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957141212] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:55:29,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:55:29,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:55:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756245940] [2024-06-20 18:55:29,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:55:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:55:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:55:29,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:55:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:55:29,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:55:29,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 584 transitions, 8998 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:55:29,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:55:29,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:55:29,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:55:32,168 INFO L124 PetriNetUnfolderBase]: 4330/6401 cut-off events. [2024-06-20 18:55:32,168 INFO L125 PetriNetUnfolderBase]: For 337055/337058 co-relation queries the response was YES. [2024-06-20 18:55:32,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57820 conditions, 6401 events. 4330/6401 cut-off events. For 337055/337058 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 33894 event pairs, 1118 based on Foata normal form. 10/6410 useless extension candidates. Maximal degree in co-relation 57700. Up to 5997 conditions per place. [2024-06-20 18:55:32,244 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 521 selfloop transitions, 122 changer transitions 0/646 dead transitions. [2024-06-20 18:55:32,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 646 transitions, 10885 flow [2024-06-20 18:55:32,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-06-20 18:55:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-06-20 18:55:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 234 transitions. [2024-06-20 18:55:32,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4076655052264808 [2024-06-20 18:55:32,245 INFO L175 Difference]: Start difference. First operand has 256 places, 584 transitions, 8998 flow. Second operand 14 states and 234 transitions. [2024-06-20 18:55:32,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 646 transitions, 10885 flow [2024-06-20 18:55:32,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 646 transitions, 10549 flow, removed 66 selfloop flow, removed 10 redundant places. [2024-06-20 18:55:32,747 INFO L231 Difference]: Finished difference. Result has 260 places, 592 transitions, 9079 flow [2024-06-20 18:55:32,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8662, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9079, PETRI_PLACES=260, PETRI_TRANSITIONS=592} [2024-06-20 18:55:32,748 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 218 predicate places. [2024-06-20 18:55:32,748 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 592 transitions, 9079 flow [2024-06-20 18:55:32,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:55:32,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:55:32,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:55:32,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-20 18:55:32,749 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:55:32,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:55:32,749 INFO L85 PathProgramCache]: Analyzing trace with hash -356573260, now seen corresponding path program 6 times [2024-06-20 18:55:32,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:55:32,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901518302] [2024-06-20 18:55:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:55:32,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:55:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:55:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:55:45,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:55:45,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901518302] [2024-06-20 18:55:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901518302] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:55:45,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:55:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:55:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968497516] [2024-06-20 18:55:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:55:45,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:55:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:55:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:55:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:55:46,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:55:46,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 592 transitions, 9079 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:55:46,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:55:46,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:55:46,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:55:48,768 INFO L124 PetriNetUnfolderBase]: 4195/6268 cut-off events. [2024-06-20 18:55:48,768 INFO L125 PetriNetUnfolderBase]: For 347388/347424 co-relation queries the response was YES. [2024-06-20 18:55:48,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56758 conditions, 6268 events. 4195/6268 cut-off events. For 347388/347424 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 33883 event pairs, 1083 based on Foata normal form. 18/6255 useless extension candidates. Maximal degree in co-relation 56637. Up to 5594 conditions per place. [2024-06-20 18:55:48,844 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 455 selfloop transitions, 79 changer transitions 0/634 dead transitions. [2024-06-20 18:55:48,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 634 transitions, 10389 flow [2024-06-20 18:55:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 18:55:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 18:55:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2024-06-20 18:55:48,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42276422764227645 [2024-06-20 18:55:48,847 INFO L175 Difference]: Start difference. First operand has 260 places, 592 transitions, 9079 flow. Second operand 12 states and 208 transitions. [2024-06-20 18:55:48,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 634 transitions, 10389 flow [2024-06-20 18:55:49,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 634 transitions, 10100 flow, removed 43 selfloop flow, removed 10 redundant places. [2024-06-20 18:55:49,480 INFO L231 Difference]: Finished difference. Result has 262 places, 594 transitions, 9033 flow [2024-06-20 18:55:49,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8790, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9033, PETRI_PLACES=262, PETRI_TRANSITIONS=594} [2024-06-20 18:55:49,481 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 220 predicate places. [2024-06-20 18:55:49,481 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 594 transitions, 9033 flow [2024-06-20 18:55:49,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:55:49,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:55:49,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:55:49,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-20 18:55:49,482 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:55:49,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:55:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -356534076, now seen corresponding path program 4 times [2024-06-20 18:55:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:55:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454262452] [2024-06-20 18:55:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:55:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:55:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:56:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:56:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:56:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454262452] [2024-06-20 18:56:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454262452] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:56:02,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:56:02,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:56:02,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639369949] [2024-06-20 18:56:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:56:02,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:56:02,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:56:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:56:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:56:02,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:56:02,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 594 transitions, 9033 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:56:02,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:56:02,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:56:02,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:56:05,691 INFO L124 PetriNetUnfolderBase]: 4384/6480 cut-off events. [2024-06-20 18:56:05,691 INFO L125 PetriNetUnfolderBase]: For 360145/360148 co-relation queries the response was YES. [2024-06-20 18:56:05,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58505 conditions, 6480 events. 4384/6480 cut-off events. For 360145/360148 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 34332 event pairs, 1121 based on Foata normal form. 12/6491 useless extension candidates. Maximal degree in co-relation 58383. Up to 5950 conditions per place. [2024-06-20 18:56:05,764 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 528 selfloop transitions, 141 changer transitions 0/672 dead transitions. [2024-06-20 18:56:05,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 672 transitions, 11271 flow [2024-06-20 18:56:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-06-20 18:56:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-06-20 18:56:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 240 transitions. [2024-06-20 18:56:05,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4181184668989547 [2024-06-20 18:56:05,765 INFO L175 Difference]: Start difference. First operand has 262 places, 594 transitions, 9033 flow. Second operand 14 states and 240 transitions. [2024-06-20 18:56:05,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 672 transitions, 11271 flow [2024-06-20 18:56:06,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 672 transitions, 10986 flow, removed 74 selfloop flow, removed 9 redundant places. [2024-06-20 18:56:06,382 INFO L231 Difference]: Finished difference. Result has 268 places, 611 transitions, 9401 flow [2024-06-20 18:56:06,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8748, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9401, PETRI_PLACES=268, PETRI_TRANSITIONS=611} [2024-06-20 18:56:06,383 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 226 predicate places. [2024-06-20 18:56:06,383 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 611 transitions, 9401 flow [2024-06-20 18:56:06,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:56:06,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:56:06,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:56:06,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-20 18:56:06,383 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:56:06,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:56:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1065944138, now seen corresponding path program 7 times [2024-06-20 18:56:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:56:06,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922854807] [2024-06-20 18:56:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:56:06,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:56:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:56:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:56:20,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:56:20,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922854807] [2024-06-20 18:56:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922854807] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:56:20,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:56:20,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:56:20,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3209743] [2024-06-20 18:56:20,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:56:20,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:56:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:56:20,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:56:20,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:56:20,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:56:20,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 611 transitions, 9401 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:56:20,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:56:20,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:56:20,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:56:23,568 INFO L124 PetriNetUnfolderBase]: 4461/6673 cut-off events. [2024-06-20 18:56:23,569 INFO L125 PetriNetUnfolderBase]: For 385802/385840 co-relation queries the response was YES. [2024-06-20 18:56:23,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60773 conditions, 6673 events. 4461/6673 cut-off events. For 385802/385840 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 36647 event pairs, 1028 based on Foata normal form. 20/6671 useless extension candidates. Maximal degree in co-relation 60649. Up to 5778 conditions per place. [2024-06-20 18:56:23,653 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 467 selfloop transitions, 111 changer transitions 0/684 dead transitions. [2024-06-20 18:56:23,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 684 transitions, 11481 flow [2024-06-20 18:56:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:56:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:56:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 200 transitions. [2024-06-20 18:56:23,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4434589800443459 [2024-06-20 18:56:23,656 INFO L175 Difference]: Start difference. First operand has 268 places, 611 transitions, 9401 flow. Second operand 11 states and 200 transitions. [2024-06-20 18:56:23,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 684 transitions, 11481 flow [2024-06-20 18:56:24,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 684 transitions, 11200 flow, removed 62 selfloop flow, removed 11 redundant places. [2024-06-20 18:56:24,238 INFO L231 Difference]: Finished difference. Result has 269 places, 643 transitions, 10059 flow [2024-06-20 18:56:24,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=9120, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10059, PETRI_PLACES=269, PETRI_TRANSITIONS=643} [2024-06-20 18:56:24,239 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 227 predicate places. [2024-06-20 18:56:24,239 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 643 transitions, 10059 flow [2024-06-20 18:56:24,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:56:24,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:56:24,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:56:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-20 18:56:24,239 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:56:24,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:56:24,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1065883564, now seen corresponding path program 5 times [2024-06-20 18:56:24,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:56:24,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034486242] [2024-06-20 18:56:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:56:24,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:56:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:56:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:56:32,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:56:32,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034486242] [2024-06-20 18:56:32,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034486242] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:56:32,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:56:32,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:56:32,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796037814] [2024-06-20 18:56:32,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:56:32,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:56:32,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:56:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:56:32,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:56:33,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:56:33,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 643 transitions, 10059 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:56:33,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:56:33,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:56:33,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:56:36,153 INFO L124 PetriNetUnfolderBase]: 5066/7479 cut-off events. [2024-06-20 18:56:36,153 INFO L125 PetriNetUnfolderBase]: For 441582/441590 co-relation queries the response was YES. [2024-06-20 18:56:36,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69274 conditions, 7479 events. 5066/7479 cut-off events. For 441582/441590 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 40930 event pairs, 1162 based on Foata normal form. 16/7494 useless extension candidates. Maximal degree in co-relation 69147. Up to 6684 conditions per place. [2024-06-20 18:56:36,255 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 600 selfloop transitions, 168 changer transitions 0/771 dead transitions. [2024-06-20 18:56:36,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 771 transitions, 13519 flow [2024-06-20 18:56:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:56:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:56:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 208 transitions. [2024-06-20 18:56:36,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4611973392461197 [2024-06-20 18:56:36,257 INFO L175 Difference]: Start difference. First operand has 269 places, 643 transitions, 10059 flow. Second operand 11 states and 208 transitions. [2024-06-20 18:56:36,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 771 transitions, 13519 flow [2024-06-20 18:56:37,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 771 transitions, 13348 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-06-20 18:56:37,251 INFO L231 Difference]: Finished difference. Result has 276 places, 712 transitions, 11406 flow [2024-06-20 18:56:37,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=9888, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11406, PETRI_PLACES=276, PETRI_TRANSITIONS=712} [2024-06-20 18:56:37,252 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 234 predicate places. [2024-06-20 18:56:37,252 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 712 transitions, 11406 flow [2024-06-20 18:56:37,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:56:37,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:56:37,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:56:37,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-20 18:56:37,253 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:56:37,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:56:37,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1745948670, now seen corresponding path program 8 times [2024-06-20 18:56:37,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:56:37,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214519002] [2024-06-20 18:56:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:56:37,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:56:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:56:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:56:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:56:51,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214519002] [2024-06-20 18:56:51,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214519002] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:56:51,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:56:51,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:56:51,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68355433] [2024-06-20 18:56:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:56:51,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:56:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:56:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:56:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:56:51,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:56:51,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 712 transitions, 11406 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:56:51,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:56:51,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:56:51,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:56:54,781 INFO L124 PetriNetUnfolderBase]: 4938/7374 cut-off events. [2024-06-20 18:56:54,781 INFO L125 PetriNetUnfolderBase]: For 467997/468034 co-relation queries the response was YES. [2024-06-20 18:56:54,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70600 conditions, 7374 events. 4938/7374 cut-off events. For 467997/468034 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 41305 event pairs, 1138 based on Foata normal form. 21/7373 useless extension candidates. Maximal degree in co-relation 70469. Up to 6534 conditions per place. [2024-06-20 18:56:54,883 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 534 selfloop transitions, 92 changer transitions 0/755 dead transitions. [2024-06-20 18:56:54,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 755 transitions, 13016 flow [2024-06-20 18:56:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:56:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:56:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 196 transitions. [2024-06-20 18:56:54,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43458980044345896 [2024-06-20 18:56:54,886 INFO L175 Difference]: Start difference. First operand has 276 places, 712 transitions, 11406 flow. Second operand 11 states and 196 transitions. [2024-06-20 18:56:54,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 755 transitions, 13016 flow [2024-06-20 18:56:55,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 755 transitions, 12767 flow, removed 79 selfloop flow, removed 6 redundant places. [2024-06-20 18:56:55,855 INFO L231 Difference]: Finished difference. Result has 281 places, 718 transitions, 11581 flow [2024-06-20 18:56:55,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=11157, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11581, PETRI_PLACES=281, PETRI_TRANSITIONS=718} [2024-06-20 18:56:55,855 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 239 predicate places. [2024-06-20 18:56:55,855 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 718 transitions, 11581 flow [2024-06-20 18:56:55,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:56:55,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:56:55,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:56:55,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-20 18:56:55,856 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:56:55,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:56:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1063082404, now seen corresponding path program 6 times [2024-06-20 18:56:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:56:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041316040] [2024-06-20 18:56:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:56:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:56:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:57:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:57:09,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:57:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041316040] [2024-06-20 18:57:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041316040] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:57:09,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:57:09,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:57:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862091000] [2024-06-20 18:57:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:57:09,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:57:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:57:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:57:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:57:09,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:57:09,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 718 transitions, 11581 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:57:09,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:57:09,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:57:09,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:57:12,869 INFO L124 PetriNetUnfolderBase]: 5183/7640 cut-off events. [2024-06-20 18:57:12,869 INFO L125 PetriNetUnfolderBase]: For 492490/492498 co-relation queries the response was YES. [2024-06-20 18:57:12,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73682 conditions, 7640 events. 5183/7640 cut-off events. For 492490/492498 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 41872 event pairs, 1217 based on Foata normal form. 18/7657 useless extension candidates. Maximal degree in co-relation 73550. Up to 7243 conditions per place. [2024-06-20 18:57:12,974 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 660 selfloop transitions, 110 changer transitions 0/773 dead transitions. [2024-06-20 18:57:12,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 773 transitions, 13833 flow [2024-06-20 18:57:12,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 18:57:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 18:57:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2024-06-20 18:57:12,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4146341463414634 [2024-06-20 18:57:12,975 INFO L175 Difference]: Start difference. First operand has 281 places, 718 transitions, 11581 flow. Second operand 12 states and 204 transitions. [2024-06-20 18:57:12,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 773 transitions, 13833 flow [2024-06-20 18:57:13,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 773 transitions, 13531 flow, removed 66 selfloop flow, removed 9 redundant places. [2024-06-20 18:57:14,000 INFO L231 Difference]: Finished difference. Result has 284 places, 732 transitions, 11817 flow [2024-06-20 18:57:14,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=11279, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11817, PETRI_PLACES=284, PETRI_TRANSITIONS=732} [2024-06-20 18:57:14,001 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 242 predicate places. [2024-06-20 18:57:14,001 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 732 transitions, 11817 flow [2024-06-20 18:57:14,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:57:14,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:57:14,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:57:14,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-20 18:57:14,001 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:57:14,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:57:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1063087054, now seen corresponding path program 7 times [2024-06-20 18:57:14,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:57:14,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924656224] [2024-06-20 18:57:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:57:14,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:57:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:57:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:57:22,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:57:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924656224] [2024-06-20 18:57:22,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924656224] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:57:22,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:57:22,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:57:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024973958] [2024-06-20 18:57:22,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:57:22,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:57:22,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:57:22,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:57:22,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:57:22,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:57:22,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 732 transitions, 11817 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:57:22,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:57:22,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:57:22,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:57:26,277 INFO L124 PetriNetUnfolderBase]: 5203/7675 cut-off events. [2024-06-20 18:57:26,277 INFO L125 PetriNetUnfolderBase]: For 501890/501898 co-relation queries the response was YES. [2024-06-20 18:57:26,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74063 conditions, 7675 events. 5203/7675 cut-off events. For 501890/501898 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 42060 event pairs, 1206 based on Foata normal form. 20/7694 useless extension candidates. Maximal degree in co-relation 73930. Up to 7050 conditions per place. [2024-06-20 18:57:26,379 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 651 selfloop transitions, 146 changer transitions 0/800 dead transitions. [2024-06-20 18:57:26,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 800 transitions, 14563 flow [2024-06-20 18:57:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:57:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:57:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-20 18:57:26,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45365853658536587 [2024-06-20 18:57:26,381 INFO L175 Difference]: Start difference. First operand has 284 places, 732 transitions, 11817 flow. Second operand 10 states and 186 transitions. [2024-06-20 18:57:26,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 800 transitions, 14563 flow [2024-06-20 18:57:27,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 800 transitions, 14276 flow, removed 57 selfloop flow, removed 8 redundant places. [2024-06-20 18:57:27,208 INFO L231 Difference]: Finished difference. Result has 287 places, 755 transitions, 12408 flow [2024-06-20 18:57:27,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=11530, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12408, PETRI_PLACES=287, PETRI_TRANSITIONS=755} [2024-06-20 18:57:27,208 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 245 predicate places. [2024-06-20 18:57:27,208 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 755 transitions, 12408 flow [2024-06-20 18:57:27,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:57:27,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:57:27,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:57:27,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-20 18:57:27,209 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:57:27,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:57:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1063087178, now seen corresponding path program 9 times [2024-06-20 18:57:27,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:57:27,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760211422] [2024-06-20 18:57:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:57:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:57:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:57:40,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:57:40,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:57:40,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760211422] [2024-06-20 18:57:40,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760211422] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:57:40,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:57:40,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:57:40,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80894578] [2024-06-20 18:57:40,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:57:40,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:57:40,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:57:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:57:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:57:40,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:57:40,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 755 transitions, 12408 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:57:40,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:57:40,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:57:40,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:57:44,129 INFO L124 PetriNetUnfolderBase]: 5019/7478 cut-off events. [2024-06-20 18:57:44,129 INFO L125 PetriNetUnfolderBase]: For 505418/505455 co-relation queries the response was YES. [2024-06-20 18:57:44,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72155 conditions, 7478 events. 5019/7478 cut-off events. For 505418/505455 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 41763 event pairs, 1165 based on Foata normal form. 23/7479 useless extension candidates. Maximal degree in co-relation 72020. Up to 6655 conditions per place. [2024-06-20 18:57:44,225 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 575 selfloop transitions, 71 changer transitions 0/787 dead transitions. [2024-06-20 18:57:44,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 787 transitions, 13826 flow [2024-06-20 18:57:44,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:57:44,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:57:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2024-06-20 18:57:44,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43414634146341463 [2024-06-20 18:57:44,228 INFO L175 Difference]: Start difference. First operand has 287 places, 755 transitions, 12408 flow. Second operand 10 states and 178 transitions. [2024-06-20 18:57:44,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 787 transitions, 13826 flow [2024-06-20 18:57:45,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 787 transitions, 13387 flow, removed 171 selfloop flow, removed 6 redundant places. [2024-06-20 18:57:45,335 INFO L231 Difference]: Finished difference. Result has 291 places, 755 transitions, 12129 flow [2024-06-20 18:57:45,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=11969, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12129, PETRI_PLACES=291, PETRI_TRANSITIONS=755} [2024-06-20 18:57:45,336 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 249 predicate places. [2024-06-20 18:57:45,336 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 755 transitions, 12129 flow [2024-06-20 18:57:45,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:57:45,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:57:45,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:57:45,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-20 18:57:45,337 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:57:45,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:57:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash -947611310, now seen corresponding path program 1 times [2024-06-20 18:57:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:57:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770420963] [2024-06-20 18:57:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:57:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:57:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:57:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:57:58,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:57:58,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770420963] [2024-06-20 18:57:58,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770420963] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:57:58,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:57:58,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:57:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611833962] [2024-06-20 18:57:58,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:57:58,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:57:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:57:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:57:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:57:59,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:57:59,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 755 transitions, 12129 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:57:59,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:57:59,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:57:59,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:58:02,424 INFO L124 PetriNetUnfolderBase]: 5268/7769 cut-off events. [2024-06-20 18:58:02,424 INFO L125 PetriNetUnfolderBase]: For 515062/515071 co-relation queries the response was YES. [2024-06-20 18:58:02,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74456 conditions, 7769 events. 5268/7769 cut-off events. For 515062/515071 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 42675 event pairs, 1303 based on Foata normal form. 12/7779 useless extension candidates. Maximal degree in co-relation 74319. Up to 7476 conditions per place. [2024-06-20 18:58:02,534 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 745 selfloop transitions, 61 changer transitions 0/809 dead transitions. [2024-06-20 18:58:02,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 809 transitions, 14384 flow [2024-06-20 18:58:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-20 18:58:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-20 18:58:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 190 transitions. [2024-06-20 18:58:02,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4212860310421286 [2024-06-20 18:58:02,535 INFO L175 Difference]: Start difference. First operand has 291 places, 755 transitions, 12129 flow. Second operand 11 states and 190 transitions. [2024-06-20 18:58:02,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 809 transitions, 14384 flow [2024-06-20 18:58:03,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 809 transitions, 14244 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-06-20 18:58:03,654 INFO L231 Difference]: Finished difference. Result has 296 places, 768 transitions, 12389 flow [2024-06-20 18:58:03,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=11989, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12389, PETRI_PLACES=296, PETRI_TRANSITIONS=768} [2024-06-20 18:58:03,655 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 254 predicate places. [2024-06-20 18:58:03,655 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 768 transitions, 12389 flow [2024-06-20 18:58:03,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:58:03,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:58:03,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:58:03,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-20 18:58:03,655 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:58:03,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:58:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash -947618254, now seen corresponding path program 8 times [2024-06-20 18:58:03,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:58:03,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544847137] [2024-06-20 18:58:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:58:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:58:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:58:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:58:16,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:58:16,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544847137] [2024-06-20 18:58:16,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544847137] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:58:16,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:58:16,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:58:16,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426816253] [2024-06-20 18:58:16,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:58:16,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:58:16,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:58:16,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:58:16,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:58:16,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:58:16,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 768 transitions, 12389 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:58:16,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:58:16,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:58:16,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:58:19,909 INFO L124 PetriNetUnfolderBase]: 5392/7946 cut-off events. [2024-06-20 18:58:19,909 INFO L125 PetriNetUnfolderBase]: For 539292/539308 co-relation queries the response was YES. [2024-06-20 18:58:19,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76641 conditions, 7946 events. 5392/7946 cut-off events. For 539292/539308 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 43704 event pairs, 1088 based on Foata normal form. 18/7962 useless extension candidates. Maximal degree in co-relation 76502. Up to 7074 conditions per place. [2024-06-20 18:58:20,011 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 637 selfloop transitions, 203 changer transitions 0/843 dead transitions. [2024-06-20 18:58:20,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 843 transitions, 14892 flow [2024-06-20 18:58:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-20 18:58:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-20 18:58:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 214 transitions. [2024-06-20 18:58:20,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349593495934959 [2024-06-20 18:58:20,012 INFO L175 Difference]: Start difference. First operand has 296 places, 768 transitions, 12389 flow. Second operand 12 states and 214 transitions. [2024-06-20 18:58:20,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 843 transitions, 14892 flow [2024-06-20 18:58:21,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 843 transitions, 14713 flow, removed 43 selfloop flow, removed 6 redundant places. [2024-06-20 18:58:21,034 INFO L231 Difference]: Finished difference. Result has 303 places, 786 transitions, 12974 flow [2024-06-20 18:58:21,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=12210, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=768, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12974, PETRI_PLACES=303, PETRI_TRANSITIONS=786} [2024-06-20 18:58:21,035 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 261 predicate places. [2024-06-20 18:58:21,035 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 786 transitions, 12974 flow [2024-06-20 18:58:21,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:58:21,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:58:21,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:58:21,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-20 18:58:21,036 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:58:21,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:58:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -947796008, now seen corresponding path program 10 times [2024-06-20 18:58:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:58:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750802217] [2024-06-20 18:58:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:58:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:58:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:58:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:58:34,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:58:34,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750802217] [2024-06-20 18:58:34,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750802217] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:58:34,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:58:34,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:58:34,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490283818] [2024-06-20 18:58:34,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:58:34,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:58:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:58:34,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:58:34,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:58:34,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-20 18:58:34,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 786 transitions, 12974 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:58:34,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:58:34,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-20 18:58:34,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:58:38,098 INFO L124 PetriNetUnfolderBase]: 5259/7831 cut-off events. [2024-06-20 18:58:38,098 INFO L125 PetriNetUnfolderBase]: For 564707/564762 co-relation queries the response was YES. [2024-06-20 18:58:38,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76933 conditions, 7831 events. 5259/7831 cut-off events. For 564707/564762 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 44036 event pairs, 1127 based on Foata normal form. 23/7831 useless extension candidates. Maximal degree in co-relation 76792. Up to 6897 conditions per place. [2024-06-20 18:58:38,201 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 581 selfloop transitions, 93 changer transitions 0/821 dead transitions. [2024-06-20 18:58:38,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 821 transitions, 14600 flow [2024-06-20 18:58:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:58:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:58:38,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 181 transitions. [2024-06-20 18:58:38,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44146341463414634 [2024-06-20 18:58:38,204 INFO L175 Difference]: Start difference. First operand has 303 places, 786 transitions, 12974 flow. Second operand 10 states and 181 transitions. [2024-06-20 18:58:38,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 821 transitions, 14600 flow [2024-06-20 18:58:39,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 821 transitions, 14125 flow, removed 62 selfloop flow, removed 9 redundant places. [2024-06-20 18:58:39,235 INFO L231 Difference]: Finished difference. Result has 304 places, 788 transitions, 12804 flow [2024-06-20 18:58:39,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=12499, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=786, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12804, PETRI_PLACES=304, PETRI_TRANSITIONS=788} [2024-06-20 18:58:39,236 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 262 predicate places. [2024-06-20 18:58:39,236 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 788 transitions, 12804 flow [2024-06-20 18:58:39,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 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) [2024-06-20 18:58:39,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:58:39,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:58:39,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-20 18:58:39,237 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:58:39,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:58:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash -947795884, now seen corresponding path program 9 times [2024-06-20 18:58:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:58:39,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410793518] [2024-06-20 18:58:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:58:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:58:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:58:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:58:49,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:58:49,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410793518] [2024-06-20 18:58:49,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410793518] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:58:49,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:58:49,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:58:49,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130392741] [2024-06-20 18:58:49,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:58:49,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:58:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:58:49,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:58:49,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:58:49,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:58:49,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 788 transitions, 12804 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:58:49,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:58:49,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:58:49,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:58:53,169 INFO L124 PetriNetUnfolderBase]: 5501/8108 cut-off events. [2024-06-20 18:58:53,169 INFO L125 PetriNetUnfolderBase]: For 596677/596690 co-relation queries the response was YES. [2024-06-20 18:58:53,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79963 conditions, 8108 events. 5501/8108 cut-off events. For 596677/596690 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 44815 event pairs, 1169 based on Foata normal form. 16/8121 useless extension candidates. Maximal degree in co-relation 79821. Up to 6736 conditions per place. [2024-06-20 18:58:53,274 INFO L140 encePairwiseOnDemand]: 25/41 looper letters, 637 selfloop transitions, 225 changer transitions 0/865 dead transitions. [2024-06-20 18:58:53,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 865 transitions, 15962 flow [2024-06-20 18:58:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-20 18:58:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-20 18:58:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 197 transitions. [2024-06-20 18:58:53,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2024-06-20 18:58:53,276 INFO L175 Difference]: Start difference. First operand has 304 places, 788 transitions, 12804 flow. Second operand 10 states and 197 transitions. [2024-06-20 18:58:53,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 865 transitions, 15962 flow [2024-06-20 18:58:54,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 865 transitions, 15675 flow, removed 52 selfloop flow, removed 8 redundant places. [2024-06-20 18:58:54,353 INFO L231 Difference]: Finished difference. Result has 307 places, 796 transitions, 13225 flow [2024-06-20 18:58:54,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=12517, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=788, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13225, PETRI_PLACES=307, PETRI_TRANSITIONS=796} [2024-06-20 18:58:54,354 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 265 predicate places. [2024-06-20 18:58:54,354 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 796 transitions, 13225 flow [2024-06-20 18:58:54,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:58:54,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:58:54,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:58:54,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-20 18:58:54,354 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:58:54,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:58:54,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1864041124, now seen corresponding path program 10 times [2024-06-20 18:58:54,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:58:54,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735368893] [2024-06-20 18:58:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:58:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:58:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:59:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:59:07,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:59:07,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735368893] [2024-06-20 18:59:07,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735368893] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:59:07,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:59:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-20 18:59:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518746481] [2024-06-20 18:59:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:59:07,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-20 18:59:07,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:59:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-20 18:59:07,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-20 18:59:07,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-06-20 18:59:07,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 796 transitions, 13225 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-06-20 18:59:07,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:59:07,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-06-20 18:59:07,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15