./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix038_tso.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/mix038_tso.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 15:15:51,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 15:15:51,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 15:15:51,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 15:15:51,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 15:15:52,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 15:15:52,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 15:15:52,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 15:15:52,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 15:15:52,016 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 15:15:52,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 15:15:52,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 15:15:52,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 15:15:52,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 15:15:52,018 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 15:15:52,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 15:15:52,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 15:15:52,018 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 15:15:52,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 15:15:52,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 15:15:52,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 15:15:52,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 15:15:52,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 15:15:52,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 15:15:52,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 15:15:52,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 15:15:52,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 15:15:52,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 15:15:52,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 15:15:52,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 15:15:52,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 15:15:52,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 15:15:52,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:15:52,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 15:15:52,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 15:15:52,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 15:15:52,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 15:15:52,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 15:15:52,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 15:15:52,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 15:15:52,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 15:15:52,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 15:15:52,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 15:15:52,026 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 15:15:52,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 15:15:52,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 15:15:52,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 15:15:52,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 15:15:52,215 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 15:15:52,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2024-06-14 15:15:53,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 15:15:53,518 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 15:15:53,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix038_tso.oepc.i [2024-06-14 15:15:53,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee31a7b1/f12d9d6679ae4c59b451e2d72b26a5ce/FLAGa8e08dc56 [2024-06-14 15:15:53,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee31a7b1/f12d9d6679ae4c59b451e2d72b26a5ce [2024-06-14 15:15:53,548 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 15:15:53,548 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 15:15:53,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/mix038_tso.oepc.yml/witness.yml [2024-06-14 15:15:53,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 15:15:53,735 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 15:15:53,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 15:15:53,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 15:15:53,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 15:15:53,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:15:53" (1/2) ... [2024-06-14 15:15:53,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36da03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:15:53, skipping insertion in model container [2024-06-14 15:15:53,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:15:53" (1/2) ... [2024-06-14 15:15:53,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55db5435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:15:53, skipping insertion in model container [2024-06-14 15:15:53,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:15:53" (2/2) ... [2024-06-14 15:15:53,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36da03bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:53, skipping insertion in model container [2024-06-14 15:15:53,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:15:53" (2/2) ... [2024-06-14 15:15:53,744 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 15:15:53,821 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 15:15:53,822 INFO L97 edCorrectnessWitness]: Location invariant before [L835-L835] ((((((((((((((((((((! multithreaded || x$r_buff0_thd3 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (0 <= x && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )a >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )x$flush_delayed >= 0LL) && (long long )a + (long long )x$mem_tmp >= 0LL) && (long long )a + (long long )x$r_buff0_thd0 >= 0LL) && (long long )a + (long long )x$r_buff0_thd1 >= 0LL) && (long long )a + (long long )x$r_buff0_thd2 >= 0LL) && (long long )a + (long long )x$r_buff0_thd3 >= 0LL) && (long long )a + (long long )x$r_buff1_thd0 >= 0LL) && (long long )a + (long long )x$r_buff1_thd1 >= 0LL) && (long long )a + (long long )x$r_buff1_thd2 >= 0LL) && (long long )a + (long long )x$r_buff1_thd3 >= 0LL) && (long long )a + (long long )x$read_delayed >= 0LL) && (long long )a + (long long )x$w_buff0 >= 0LL) && (long long )a + (long long )x$w_buff1 >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$read_delayed >= 0LL) && (long long )a - (long long )x$r_buff0_thd0 >= 0LL) && (long long )a - (long long )x$r_buff0_thd1 >= 0LL) && (long long )a - (long long )x$r_buff0_thd3 >= 0LL) && (long long )a - (long long )x$r_buff1_thd0 >= 0LL) && (long long )a - (long long )x$r_buff1_thd1 >= 0LL) && (long long )a - (long long )x$r_buff1_thd3 >= 0LL) && (long long )a - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x$w_buff0 <= 127) && x$w_buff1 <= 127) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && x$w_buff0 % 2 == 0) && x$w_buff1 % 2 == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 2)) && (x$w_buff1 == 0 || x$w_buff1 == 2)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff0 && x$w_buff0 <= 127) && x$w_buff0 % 2 == 0) && (x$w_buff0 == 0 || x$w_buff0 == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (0 <= x$mem_tmp && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff1 && x$w_buff1 <= 127) && x$w_buff1 % 2 == 0) && (x$w_buff1 == 0 || x$w_buff1 == 2))) [2024-06-14 15:15:53,823 INFO L97 edCorrectnessWitness]: Location invariant before [L833-L833] ((((((((((((((((((((! multithreaded || x$r_buff0_thd3 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (0 <= x && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )a >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )x$flush_delayed >= 0LL) && (long long )a + (long long )x$mem_tmp >= 0LL) && (long long )a + (long long )x$r_buff0_thd0 >= 0LL) && (long long )a + (long long )x$r_buff0_thd1 >= 0LL) && (long long )a + (long long )x$r_buff0_thd2 >= 0LL) && (long long )a + (long long )x$r_buff0_thd3 >= 0LL) && (long long )a + (long long )x$r_buff1_thd0 >= 0LL) && (long long )a + (long long )x$r_buff1_thd1 >= 0LL) && (long long )a + (long long )x$r_buff1_thd2 >= 0LL) && (long long )a + (long long )x$r_buff1_thd3 >= 0LL) && (long long )a + (long long )x$read_delayed >= 0LL) && (long long )a + (long long )x$w_buff0 >= 0LL) && (long long )a + (long long )x$w_buff1 >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$read_delayed >= 0LL) && (long long )a - (long long )x$r_buff0_thd0 >= 0LL) && (long long )a - (long long )x$r_buff0_thd1 >= 0LL) && (long long )a - (long long )x$r_buff0_thd3 >= 0LL) && (long long )a - (long long )x$r_buff1_thd0 >= 0LL) && (long long )a - (long long )x$r_buff1_thd1 >= 0LL) && (long long )a - (long long )x$r_buff1_thd3 >= 0LL) && (long long )a - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x$w_buff0 <= 127) && x$w_buff1 <= 127) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && x$w_buff0 % 2 == 0) && x$w_buff1 % 2 == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 2)) && (x$w_buff1 == 0 || x$w_buff1 == 2)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff0 && x$w_buff0 <= 127) && x$w_buff0 % 2 == 0) && (x$w_buff0 == 0 || x$w_buff0 == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (0 <= x$mem_tmp && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff1 && x$w_buff1 <= 127) && x$w_buff1 % 2 == 0) && (x$w_buff1 == 0 || x$w_buff1 == 2))) [2024-06-14 15:15:53,824 INFO L97 edCorrectnessWitness]: Location invariant before [L836-L836] ((((((((((((((((((((! multithreaded || x$r_buff0_thd3 == (_Bool)0) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)))) && (! multithreaded || x$r_buff0_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EBX && __unbuffered_p2_EBX <= 1) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)))) && (! multithreaded || (0 <= x && ((x == 0 || x == 1) || x == 2)))) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p2_EBX) + (long long )a >= 0LL && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff0_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd0) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd2 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd1) + (long long )z >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )y >= 0LL) && (0LL - (long long )x$r_buff1_thd3) + (long long )z >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )x$w_buff1 >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )y >= 0LL) && (0LL - (long long )x$read_delayed) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )y >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )z >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) + (long long )weak$$choice2 >= 0LL) && (1LL - (long long )a) + (long long )main$tmp_guard1 >= 0LL) && (1LL - (long long )a) + (long long )x >= 0LL) && (1LL - (long long )a) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )a) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )a) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )a) + (long long )y >= 0LL) && (1LL - (long long )a) + (long long )z >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice0 >= 0LL) && (1LL - (long long )a) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p1_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_cnt + (long long )a >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )__unbuffered_p2_EBX >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )a >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )weak$$choice2 >= 0LL) && (long long )a + (long long )main$tmp_guard1 >= 0LL) && (long long )a + (long long )x >= 0LL) && (long long )a + (long long )x$flush_delayed >= 0LL) && (long long )a + (long long )x$mem_tmp >= 0LL) && (long long )a + (long long )x$r_buff0_thd0 >= 0LL) && (long long )a + (long long )x$r_buff0_thd1 >= 0LL) && (long long )a + (long long )x$r_buff0_thd2 >= 0LL) && (long long )a + (long long )x$r_buff0_thd3 >= 0LL) && (long long )a + (long long )x$r_buff1_thd0 >= 0LL) && (long long )a + (long long )x$r_buff1_thd1 >= 0LL) && (long long )a + (long long )x$r_buff1_thd2 >= 0LL) && (long long )a + (long long )x$r_buff1_thd3 >= 0LL) && (long long )a + (long long )x$read_delayed >= 0LL) && (long long )a + (long long )x$w_buff0 >= 0LL) && (long long )a + (long long )x$w_buff1 >= 0LL) && (long long )a + (long long )y >= 0LL) && (long long )a + (long long )z >= 0LL) && (long long )a + (long long )weak$$choice0 >= 0LL) && (long long )a + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice0 >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$choice2 >= 0LL) && (long long )x + (long long )x$flush_delayed >= 0LL) && (long long )x + (long long )x$mem_tmp >= 0LL) && (long long )x + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x + (long long )x$read_delayed >= 0LL) && (long long )x + (long long )x$w_buff0 >= 0LL) && (long long )x + (long long )x$w_buff1 >= 0LL) && (long long )x + (long long )y >= 0LL) && (long long )x + (long long )z >= 0LL) && (long long )x$flush_delayed + (long long )x$mem_tmp >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$flush_delayed + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed + (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$flush_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$flush_delayed + (long long )y >= 0LL) && (long long )x$flush_delayed + (long long )z >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$mem_tmp + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp + (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff0 >= 0LL) && (long long )x$mem_tmp + (long long )x$w_buff1 >= 0LL) && (long long )x$mem_tmp + (long long )y >= 0LL) && (long long )x$mem_tmp + (long long )z >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd0 + (long long )y >= 0LL) && (long long )x$r_buff0_thd0 + (long long )z >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd1 + (long long )y >= 0LL) && (long long )x$r_buff0_thd1 + (long long )z >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd2 + (long long )y >= 0LL) && (long long )x$r_buff0_thd2 + (long long )z >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff0_thd3 + (long long )y >= 0LL) && (long long )x$r_buff0_thd3 + (long long )z >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd0 + (long long )y >= 0LL) && (long long )x$r_buff1_thd0 + (long long )z >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd1 + (long long )y >= 0LL) && (long long )x$r_buff1_thd1 + (long long )z >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd2 + (long long )y >= 0LL) && (long long )x$r_buff1_thd2 + (long long )z >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )x$w_buff1 >= 0LL) && (long long )x$r_buff1_thd3 + (long long )y >= 0LL) && (long long )x$r_buff1_thd3 + (long long )z >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff0 >= 0LL) && (long long )x$read_delayed + (long long )x$w_buff1 >= 0LL) && (long long )x$read_delayed + (long long )y >= 0LL) && (long long )x$read_delayed + (long long )z >= 0LL) && (long long )x$w_buff0 + (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 + (long long )y >= 0LL) && (long long )x$w_buff0 + (long long )z >= 0LL) && (long long )x$w_buff1 + (long long )y >= 0LL) && (long long )x$w_buff1 + (long long )z >= 0LL) && (long long )y + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )x >= 0LL) && (long long )weak$$choice0 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice0 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice0 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice0 + (long long )y >= 0LL) && (long long )weak$$choice0 + (long long )z >= 0LL) && (long long )weak$$choice0 + (long long )weak$$choice2 >= 0LL) && (long long )weak$$choice2 + (long long )x >= 0LL) && (long long )weak$$choice2 + (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$mem_tmp >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )weak$$choice2 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 + (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )x$w_buff1 >= 0LL) && (long long )weak$$choice2 + (long long )y >= 0LL) && (long long )weak$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p1_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )__unbuffered_p2_EBX >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )a >= 0LL) && (1LL + (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )__unbuffered_p2_EBX) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )a) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )a) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )__unbuffered_p2_EBX) - (long long )a >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p1_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX - (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EBX - (long long )x$read_delayed >= 0LL) && (long long )a - (long long )x$r_buff0_thd0 >= 0LL) && (long long )a - (long long )x$r_buff0_thd1 >= 0LL) && (long long )a - (long long )x$r_buff0_thd3 >= 0LL) && (long long )a - (long long )x$r_buff1_thd0 >= 0LL) && (long long )a - (long long )x$r_buff1_thd1 >= 0LL) && (long long )a - (long long )x$r_buff1_thd3 >= 0LL) && (long long )a - (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 - (long long )x$read_delayed >= 0LL) && (long long )x - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x - (long long )x$read_delayed >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$flush_delayed - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$flush_delayed - (long long )x$read_delayed >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$mem_tmp - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$mem_tmp - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff0_thd3 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd0 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd1 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$read_delayed >= 0LL) && (long long )x$r_buff1_thd3 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice0 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice0 - (long long )x$read_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$flush_delayed >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff0_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd0 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd1 >= 0LL) && (long long )weak$$choice2 - (long long )x$r_buff1_thd3 >= 0LL) && (long long )weak$$choice2 - (long long )x$read_delayed >= 0LL))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p1_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= __unbuffered_p2_EBX) && 0 <= a) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p1_EAX <= 1) && __unbuffered_p2_EAX <= 1) && __unbuffered_p2_EBX <= 1) && a <= 1) && x$w_buff0 <= 127) && x$w_buff1 <= 127) && y <= 1) && z <= 1) && x$flush_delayed == (_Bool)0) && x$r_buff0_thd0 == (_Bool)0) && x$r_buff0_thd1 == (_Bool)0) && x$r_buff0_thd3 == (_Bool)0) && x$r_buff1_thd0 == (_Bool)0) && x$r_buff1_thd1 == (_Bool)0) && x$r_buff1_thd3 == (_Bool)0) && x$read_delayed == (_Bool)0) && x$read_delayed_var == 0) && x$w_buff0 % 2 == 0) && x$w_buff1 % 2 == 0) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (__unbuffered_p2_EBX == 0 || __unbuffered_p2_EBX == 1)) && (a == 0 || a == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 2)) && (x$w_buff1 == 0 || x$w_buff1 == 2)) && (y == 0 || y == 1)) && (z == 0 || z == 1)) && ((x == 0 || x == 1) || x == 2)) && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$r_buff1_thd0 == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff0 && x$w_buff0 <= 127) && x$w_buff0 % 2 == 0) && (x$w_buff0 == 0 || x$w_buff0 == 2)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || (0 <= x$mem_tmp && ((x$mem_tmp == 0 || x$mem_tmp == 1) || x$mem_tmp == 2)))) && (! multithreaded || x$read_delayed_var == 0)) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= a && a <= 1) && (a == 0 || a == 1)))) && (! multithreaded || ((0 <= z && z <= 1) && (z == 0 || z == 1)))) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((0 <= x$w_buff1 && x$w_buff1 <= 127) && x$w_buff1 % 2 == 0) && (x$w_buff1 == 0 || x$w_buff1 == 2))) [2024-06-14 15:15:53,824 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 15:15:53,824 INFO L106 edCorrectnessWitness]: ghost_update [L831-L831] multithreaded = 1; [2024-06-14 15:15:53,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 15:15:54,160 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:15:54,169 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 15:15:54,530 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:15:54,566 INFO L206 MainTranslator]: Completed translation [2024-06-14 15:15:54,567 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54 WrapperNode [2024-06-14 15:15:54,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 15:15:54,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 15:15:54,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 15:15:54,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 15:15:54,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,775 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 146 [2024-06-14 15:15:54,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 15:15:54,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 15:15:54,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 15:15:54,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 15:15:54,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,856 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-14 15:15:54,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 15:15:54,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 15:15:54,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 15:15:54,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 15:15:54,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (1/1) ... [2024-06-14 15:15:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:15:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 15:15:54,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 15:15:54,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 15:15:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 15:15:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 15:15:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-14 15:15:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-14 15:15:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-14 15:15:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-14 15:15:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-14 15:15:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-14 15:15:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 15:15:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 15:15:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 15:15:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 15:15:55,037 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 15:15:55,160 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 15:15:55,161 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 15:15:56,417 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 15:15:56,418 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 15:15:56,737 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 15:15:56,737 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 15:15:56,738 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:15:56 BoogieIcfgContainer [2024-06-14 15:15:56,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 15:15:56,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 15:15:56,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 15:15:56,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 15:15:56,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 03:15:53" (1/4) ... [2024-06-14 15:15:56,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a06109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:15:56, skipping insertion in model container [2024-06-14 15:15:56,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:15:53" (2/4) ... [2024-06-14 15:15:56,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a06109 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 03:15:56, skipping insertion in model container [2024-06-14 15:15:56,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:15:54" (3/4) ... [2024-06-14 15:15:56,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a06109 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 03:15:56, skipping insertion in model container [2024-06-14 15:15:56,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:15:56" (4/4) ... [2024-06-14 15:15:56,746 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038_tso.oepc.i [2024-06-14 15:15:56,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 15:15:56,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 15:15:56,760 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 15:15:56,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-14 15:15:56,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 98 flow [2024-06-14 15:15:56,971 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-06-14 15:15:56,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:15:56,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-14 15:15:56,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 43 transitions, 98 flow [2024-06-14 15:15:56,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-06-14 15:15:56,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 15:15:56,995 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;@4c4b9f77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 15:15:56,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 15:15:57,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 15:15:57,032 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 15:15:57,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:15:57,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:15:57,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 15:15:57,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:15:57,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:15:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1115339954, now seen corresponding path program 1 times [2024-06-14 15:15:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:15:57,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417078781] [2024-06-14 15:15:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:15:57,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:15:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:03,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417078781] [2024-06-14 15:16:03,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417078781] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:03,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:03,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 15:16:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312040165] [2024-06-14 15:16:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:03,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 15:16:03,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 15:16:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 15:16:04,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-06-14 15:16:04,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:04,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:04,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-06-14 15:16:04,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:04,999 INFO L124 PetriNetUnfolderBase]: 1363/2171 cut-off events. [2024-06-14 15:16:04,999 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-06-14 15:16:05,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4297 conditions, 2171 events. 1363/2171 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 10812 event pairs, 964 based on Foata normal form. 1/2090 useless extension candidates. Maximal degree in co-relation 4282. Up to 2037 conditions per place. [2024-06-14 15:16:05,019 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-06-14 15:16:05,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 179 flow [2024-06-14 15:16:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 15:16:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 15:16:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-06-14 15:16:05,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5736434108527132 [2024-06-14 15:16:05,031 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 74 transitions. [2024-06-14 15:16:05,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 179 flow [2024-06-14 15:16:05,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 15:16:05,037 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 104 flow [2024-06-14 15:16:05,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2024-06-14 15:16:05,042 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-06-14 15:16:05,042 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 104 flow [2024-06-14 15:16:05,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:05,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:05,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:05,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 15:16:05,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:05,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1900162157, now seen corresponding path program 1 times [2024-06-14 15:16:05,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:05,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814003681] [2024-06-14 15:16:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:05,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:09,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:09,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814003681] [2024-06-14 15:16:09,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814003681] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:09,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:09,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 15:16:09,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507080205] [2024-06-14 15:16:09,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:09,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 15:16:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 15:16:09,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 15:16:10,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:10,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:10,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:10,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:10,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:11,023 INFO L124 PetriNetUnfolderBase]: 1564/2416 cut-off events. [2024-06-14 15:16:11,024 INFO L125 PetriNetUnfolderBase]: For 445/445 co-relation queries the response was YES. [2024-06-14 15:16:11,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5445 conditions, 2416 events. 1564/2416 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11779 event pairs, 981 based on Foata normal form. 3/2382 useless extension candidates. Maximal degree in co-relation 5430. Up to 2310 conditions per place. [2024-06-14 15:16:11,037 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 42 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-06-14 15:16:11,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 248 flow [2024-06-14 15:16:11,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 15:16:11,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 15:16:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-06-14 15:16:11,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2024-06-14 15:16:11,039 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 104 flow. Second operand 4 states and 92 transitions. [2024-06-14 15:16:11,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 248 flow [2024-06-14 15:16:11,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 15:16:11,040 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 140 flow [2024-06-14 15:16:11,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-06-14 15:16:11,041 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-06-14 15:16:11,041 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 140 flow [2024-06-14 15:16:11,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:11,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:11,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:11,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 15:16:11,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:11,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:11,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1224514155, now seen corresponding path program 1 times [2024-06-14 15:16:11,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:11,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504393112] [2024-06-14 15:16:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:15,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:15,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504393112] [2024-06-14 15:16:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504393112] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 15:16:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932878480] [2024-06-14 15:16:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:15,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 15:16:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 15:16:15,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 15:16:15,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:15,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:15,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:15,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:15,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:16,767 INFO L124 PetriNetUnfolderBase]: 1552/2400 cut-off events. [2024-06-14 15:16:16,767 INFO L125 PetriNetUnfolderBase]: For 1262/1262 co-relation queries the response was YES. [2024-06-14 15:16:16,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5997 conditions, 2400 events. 1552/2400 cut-off events. For 1262/1262 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11685 event pairs, 697 based on Foata normal form. 6/2369 useless extension candidates. Maximal degree in co-relation 5980. Up to 2262 conditions per place. [2024-06-14 15:16:16,778 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 50 selfloop transitions, 10 changer transitions 0/65 dead transitions. [2024-06-14 15:16:16,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 330 flow [2024-06-14 15:16:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:16:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:16:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-06-14 15:16:16,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5255813953488372 [2024-06-14 15:16:16,781 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 140 flow. Second operand 5 states and 113 transitions. [2024-06-14 15:16:16,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 330 flow [2024-06-14 15:16:16,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 316 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-14 15:16:16,791 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 176 flow [2024-06-14 15:16:16,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-06-14 15:16:16,793 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2024-06-14 15:16:16,793 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 176 flow [2024-06-14 15:16:16,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:16,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:16,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:16,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 15:16:16,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:16,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash 62973076, now seen corresponding path program 1 times [2024-06-14 15:16:16,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383513036] [2024-06-14 15:16:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:16,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:22,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:22,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383513036] [2024-06-14 15:16:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383513036] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:22,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:22,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:16:22,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695161621] [2024-06-14 15:16:22,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:22,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:16:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:16:22,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:16:22,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:22,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:22,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:22,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:22,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:23,453 INFO L124 PetriNetUnfolderBase]: 1543/2383 cut-off events. [2024-06-14 15:16:23,454 INFO L125 PetriNetUnfolderBase]: For 2338/2338 co-relation queries the response was YES. [2024-06-14 15:16:23,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6527 conditions, 2383 events. 1543/2383 cut-off events. For 2338/2338 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11595 event pairs, 534 based on Foata normal form. 6/2352 useless extension candidates. Maximal degree in co-relation 6509. Up to 2217 conditions per place. [2024-06-14 15:16:23,465 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 54 selfloop transitions, 12 changer transitions 0/71 dead transitions. [2024-06-14 15:16:23,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 71 transitions, 384 flow [2024-06-14 15:16:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:16:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:16:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 129 transitions. [2024-06-14 15:16:23,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-14 15:16:23,467 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 176 flow. Second operand 6 states and 129 transitions. [2024-06-14 15:16:23,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 71 transitions, 384 flow [2024-06-14 15:16:23,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 71 transitions, 360 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-14 15:16:23,469 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 195 flow [2024-06-14 15:16:23,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-06-14 15:16:23,470 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2024-06-14 15:16:23,470 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 195 flow [2024-06-14 15:16:23,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:23,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:23,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:23,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 15:16:23,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:23,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -548304503, now seen corresponding path program 1 times [2024-06-14 15:16:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:23,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793966476] [2024-06-14 15:16:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793966476] [2024-06-14 15:16:32,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793966476] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:32,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:32,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:16:32,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384797625] [2024-06-14 15:16:32,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:32,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:16:32,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:32,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:16:32,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:16:32,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-14 15:16:32,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:32,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:32,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-14 15:16:32,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:33,672 INFO L124 PetriNetUnfolderBase]: 1331/2197 cut-off events. [2024-06-14 15:16:33,673 INFO L125 PetriNetUnfolderBase]: For 3113/3113 co-relation queries the response was YES. [2024-06-14 15:16:33,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6203 conditions, 2197 events. 1331/2197 cut-off events. For 3113/3113 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11373 event pairs, 638 based on Foata normal form. 2/2191 useless extension candidates. Maximal degree in co-relation 6184. Up to 1979 conditions per place. [2024-06-14 15:16:33,687 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 44 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2024-06-14 15:16:33,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 58 transitions, 343 flow [2024-06-14 15:16:33,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:16:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:16:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2024-06-14 15:16:33,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44651162790697674 [2024-06-14 15:16:33,689 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 195 flow. Second operand 5 states and 96 transitions. [2024-06-14 15:16:33,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 58 transitions, 343 flow [2024-06-14 15:16:33,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 310 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-06-14 15:16:33,696 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 208 flow [2024-06-14 15:16:33,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-06-14 15:16:33,699 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-06-14 15:16:33,699 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 208 flow [2024-06-14 15:16:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:16:33,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:33,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:33,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 15:16:33,704 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:33,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:33,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1381613626, now seen corresponding path program 1 times [2024-06-14 15:16:33,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:33,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532656695] [2024-06-14 15:16:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:33,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:43,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:43,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532656695] [2024-06-14 15:16:43,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532656695] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:43,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:43,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:16:43,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080008509] [2024-06-14 15:16:43,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:43,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:16:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:16:43,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:16:43,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:16:43,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 208 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) [2024-06-14 15:16:43,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:43,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:16:43,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:44,309 INFO L124 PetriNetUnfolderBase]: 1549/2421 cut-off events. [2024-06-14 15:16:44,309 INFO L125 PetriNetUnfolderBase]: For 5049/5049 co-relation queries the response was YES. [2024-06-14 15:16:44,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7489 conditions, 2421 events. 1549/2421 cut-off events. For 5049/5049 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11888 event pairs, 737 based on Foata normal form. 2/2410 useless extension candidates. Maximal degree in co-relation 7468. Up to 2277 conditions per place. [2024-06-14 15:16:44,320 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 52 selfloop transitions, 11 changer transitions 0/68 dead transitions. [2024-06-14 15:16:44,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 400 flow [2024-06-14 15:16:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:16:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:16:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 111 transitions. [2024-06-14 15:16:44,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-14 15:16:44,321 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 208 flow. Second operand 6 states and 111 transitions. [2024-06-14 15:16:44,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 400 flow [2024-06-14 15:16:44,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 68 transitions, 378 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-14 15:16:44,324 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 242 flow [2024-06-14 15:16:44,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=242, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-06-14 15:16:44,324 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2024-06-14 15:16:44,325 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 242 flow [2024-06-14 15:16:44,325 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) [2024-06-14 15:16:44,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:44,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:44,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 15:16:44,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:44,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash 529202596, now seen corresponding path program 2 times [2024-06-14 15:16:44,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:44,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608540380] [2024-06-14 15:16:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:16:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:16:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:16:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608540380] [2024-06-14 15:16:53,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608540380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:16:53,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:16:53,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:16:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941331438] [2024-06-14 15:16:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:16:53,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:16:53,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:16:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:16:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:16:53,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:16:53,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 242 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) [2024-06-14 15:16:53,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:16:53,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:16:53,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:16:54,743 INFO L124 PetriNetUnfolderBase]: 1544/2421 cut-off events. [2024-06-14 15:16:54,744 INFO L125 PetriNetUnfolderBase]: For 6864/6874 co-relation queries the response was YES. [2024-06-14 15:16:54,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8032 conditions, 2421 events. 1544/2421 cut-off events. For 6864/6874 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 11982 event pairs, 735 based on Foata normal form. 10/2421 useless extension candidates. Maximal degree in co-relation 8010. Up to 2252 conditions per place. [2024-06-14 15:16:54,754 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 47 selfloop transitions, 16 changer transitions 0/68 dead transitions. [2024-06-14 15:16:54,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 432 flow [2024-06-14 15:16:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:16:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:16:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-06-14 15:16:54,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263565891472868 [2024-06-14 15:16:54,755 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 242 flow. Second operand 6 states and 110 transitions. [2024-06-14 15:16:54,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 432 flow [2024-06-14 15:16:54,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 400 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-06-14 15:16:54,758 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 282 flow [2024-06-14 15:16:54,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-06-14 15:16:54,759 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2024-06-14 15:16:54,759 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 282 flow [2024-06-14 15:16:54,759 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) [2024-06-14 15:16:54,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:16:54,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:16:54,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 15:16:54,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:16:54,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:16:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 529210532, now seen corresponding path program 1 times [2024-06-14 15:16:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:16:54,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029282079] [2024-06-14 15:16:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:16:54,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:16:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:04,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:04,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029282079] [2024-06-14 15:17:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029282079] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:04,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:17:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954003940] [2024-06-14 15:17:04,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:04,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:17:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:17:04,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:17:04,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:17:04,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 282 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:04,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:04,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:17:04,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:05,973 INFO L124 PetriNetUnfolderBase]: 1629/2627 cut-off events. [2024-06-14 15:17:05,973 INFO L125 PetriNetUnfolderBase]: For 8931/8931 co-relation queries the response was YES. [2024-06-14 15:17:05,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8989 conditions, 2627 events. 1629/2627 cut-off events. For 8931/8931 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 13358 event pairs, 757 based on Foata normal form. 2/2617 useless extension candidates. Maximal degree in co-relation 8966. Up to 2393 conditions per place. [2024-06-14 15:17:05,987 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 59 selfloop transitions, 14 changer transitions 0/78 dead transitions. [2024-06-14 15:17:05,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 78 transitions, 515 flow [2024-06-14 15:17:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:17:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:17:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-06-14 15:17:05,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4119601328903654 [2024-06-14 15:17:05,991 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 282 flow. Second operand 7 states and 124 transitions. [2024-06-14 15:17:05,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 78 transitions, 515 flow [2024-06-14 15:17:05,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 464 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-14 15:17:05,995 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 318 flow [2024-06-14 15:17:05,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=318, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-06-14 15:17:05,996 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 18 predicate places. [2024-06-14 15:17:05,996 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 318 flow [2024-06-14 15:17:05,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:05,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:05,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:05,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 15:17:05,997 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:05,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:05,997 INFO L85 PathProgramCache]: Analyzing trace with hash -119654472, now seen corresponding path program 1 times [2024-06-14 15:17:05,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:05,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507855913] [2024-06-14 15:17:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:05,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:15,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:15,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507855913] [2024-06-14 15:17:15,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507855913] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:15,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:15,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:17:15,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376403485] [2024-06-14 15:17:15,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:15,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:17:15,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:15,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:17:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:17:15,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:17:15,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 318 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:15,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:15,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:17:15,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:16,675 INFO L124 PetriNetUnfolderBase]: 1838/2843 cut-off events. [2024-06-14 15:17:16,675 INFO L125 PetriNetUnfolderBase]: For 13450/13460 co-relation queries the response was YES. [2024-06-14 15:17:16,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10840 conditions, 2843 events. 1838/2843 cut-off events. For 13450/13460 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 14143 event pairs, 668 based on Foata normal form. 4/2826 useless extension candidates. Maximal degree in co-relation 10815. Up to 2652 conditions per place. [2024-06-14 15:17:16,690 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 75 selfloop transitions, 17 changer transitions 0/98 dead transitions. [2024-06-14 15:17:16,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 98 transitions, 626 flow [2024-06-14 15:17:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-14 15:17:16,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.436046511627907 [2024-06-14 15:17:16,693 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 318 flow. Second operand 8 states and 150 transitions. [2024-06-14 15:17:16,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 98 transitions, 626 flow [2024-06-14 15:17:16,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 586 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-06-14 15:17:16,698 INFO L231 Difference]: Finished difference. Result has 67 places, 65 transitions, 372 flow [2024-06-14 15:17:16,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=372, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2024-06-14 15:17:16,699 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 23 predicate places. [2024-06-14 15:17:16,699 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 372 flow [2024-06-14 15:17:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:16,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:16,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:16,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 15:17:16,700 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:16,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:16,700 INFO L85 PathProgramCache]: Analyzing trace with hash -781017066, now seen corresponding path program 2 times [2024-06-14 15:17:16,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:16,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732757179] [2024-06-14 15:17:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:16,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:26,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:26,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732757179] [2024-06-14 15:17:26,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732757179] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:26,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:26,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:17:26,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680368019] [2024-06-14 15:17:26,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:26,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:17:26,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:26,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:17:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:17:26,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:17:26,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 372 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:26,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:26,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:17:26,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:27,578 INFO L124 PetriNetUnfolderBase]: 1951/3021 cut-off events. [2024-06-14 15:17:27,578 INFO L125 PetriNetUnfolderBase]: For 18019/18029 co-relation queries the response was YES. [2024-06-14 15:17:27,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12585 conditions, 3021 events. 1951/3021 cut-off events. For 18019/18029 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15046 event pairs, 594 based on Foata normal form. 18/3021 useless extension candidates. Maximal degree in co-relation 12558. Up to 2705 conditions per place. [2024-06-14 15:17:27,594 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 76 selfloop transitions, 25 changer transitions 0/107 dead transitions. [2024-06-14 15:17:27,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 107 transitions, 784 flow [2024-06-14 15:17:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:27,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-14 15:17:27,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-14 15:17:27,596 INFO L175 Difference]: Start difference. First operand has 67 places, 65 transitions, 372 flow. Second operand 8 states and 154 transitions. [2024-06-14 15:17:27,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 107 transitions, 784 flow [2024-06-14 15:17:27,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 107 transitions, 732 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-06-14 15:17:27,602 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 480 flow [2024-06-14 15:17:27,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=480, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2024-06-14 15:17:27,602 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 27 predicate places. [2024-06-14 15:17:27,603 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 480 flow [2024-06-14 15:17:27,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:27,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:27,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:27,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-14 15:17:27,603 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)] === [2024-06-14 15:17:27,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:27,604 INFO L85 PathProgramCache]: Analyzing trace with hash -774587976, now seen corresponding path program 3 times [2024-06-14 15:17:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:27,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472802260] [2024-06-14 15:17:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:27,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:36,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472802260] [2024-06-14 15:17:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472802260] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:36,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:17:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907258205] [2024-06-14 15:17:36,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:36,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:17:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:17:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:17:37,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:17:37,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 480 flow. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:37,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:37,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:17:37,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:38,335 INFO L124 PetriNetUnfolderBase]: 1959/3019 cut-off events. [2024-06-14 15:17:38,335 INFO L125 PetriNetUnfolderBase]: For 23226/23254 co-relation queries the response was YES. [2024-06-14 15:17:38,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13663 conditions, 3019 events. 1959/3019 cut-off events. For 23226/23254 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15059 event pairs, 555 based on Foata normal form. 23/3022 useless extension candidates. Maximal degree in co-relation 13634. Up to 2576 conditions per place. [2024-06-14 15:17:38,355 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 71 selfloop transitions, 38 changer transitions 0/115 dead transitions. [2024-06-14 15:17:38,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 115 transitions, 970 flow [2024-06-14 15:17:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 158 transitions. [2024-06-14 15:17:38,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45930232558139533 [2024-06-14 15:17:38,357 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 480 flow. Second operand 8 states and 158 transitions. [2024-06-14 15:17:38,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 115 transitions, 970 flow [2024-06-14 15:17:38,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 922 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-14 15:17:38,367 INFO L231 Difference]: Finished difference. Result has 76 places, 81 transitions, 632 flow [2024-06-14 15:17:38,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=632, PETRI_PLACES=76, PETRI_TRANSITIONS=81} [2024-06-14 15:17:38,368 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 32 predicate places. [2024-06-14 15:17:38,368 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 81 transitions, 632 flow [2024-06-14 15:17:38,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:38,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:38,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:38,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-14 15:17:38,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:38,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash -774341712, now seen corresponding path program 1 times [2024-06-14 15:17:38,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:38,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946245513] [2024-06-14 15:17:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:17:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:17:49,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:17:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946245513] [2024-06-14 15:17:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946245513] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:17:49,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:17:49,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:17:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285791121] [2024-06-14 15:17:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:17:49,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:17:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:17:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:17:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:17:49,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:17:49,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 81 transitions, 632 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:49,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:17:49,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:17:49,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:17:50,547 INFO L124 PetriNetUnfolderBase]: 1825/2906 cut-off events. [2024-06-14 15:17:50,548 INFO L125 PetriNetUnfolderBase]: For 23468/23468 co-relation queries the response was YES. [2024-06-14 15:17:50,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13420 conditions, 2906 events. 1825/2906 cut-off events. For 23468/23468 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 14635 event pairs, 569 based on Foata normal form. 4/2894 useless extension candidates. Maximal degree in co-relation 13388. Up to 2662 conditions per place. [2024-06-14 15:17:50,560 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 86 selfloop transitions, 16 changer transitions 0/107 dead transitions. [2024-06-14 15:17:50,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 928 flow [2024-06-14 15:17:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:17:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:17:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-06-14 15:17:50,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069767441860465 [2024-06-14 15:17:50,563 INFO L175 Difference]: Start difference. First operand has 76 places, 81 transitions, 632 flow. Second operand 8 states and 140 transitions. [2024-06-14 15:17:50,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 928 flow [2024-06-14 15:17:50,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 107 transitions, 822 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-06-14 15:17:50,578 INFO L231 Difference]: Finished difference. Result has 79 places, 83 transitions, 601 flow [2024-06-14 15:17:50,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=601, PETRI_PLACES=79, PETRI_TRANSITIONS=83} [2024-06-14 15:17:50,580 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 35 predicate places. [2024-06-14 15:17:50,580 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 83 transitions, 601 flow [2024-06-14 15:17:50,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:17:50,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:17:50,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:17:50,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-14 15:17:50,580 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:17:50,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:17:50,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1187539917, now seen corresponding path program 1 times [2024-06-14 15:17:50,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:17:50,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546908116] [2024-06-14 15:17:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:17:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:17:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:04,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:04,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546908116] [2024-06-14 15:18:04,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546908116] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:04,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:04,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:18:04,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050985249] [2024-06-14 15:18:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:04,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:18:04,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:18:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:18:04,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:18:04,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 83 transitions, 601 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:04,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:04,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:18:04,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:05,329 INFO L124 PetriNetUnfolderBase]: 1822/2902 cut-off events. [2024-06-14 15:18:05,329 INFO L125 PetriNetUnfolderBase]: For 23914/23914 co-relation queries the response was YES. [2024-06-14 15:18:05,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13092 conditions, 2902 events. 1822/2902 cut-off events. For 23914/23914 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 14543 event pairs, 583 based on Foata normal form. 1/2887 useless extension candidates. Maximal degree in co-relation 13059. Up to 2700 conditions per place. [2024-06-14 15:18:05,342 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 81 selfloop transitions, 8 changer transitions 0/94 dead transitions. [2024-06-14 15:18:05,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 94 transitions, 821 flow [2024-06-14 15:18:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:18:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:18:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2024-06-14 15:18:05,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40930232558139534 [2024-06-14 15:18:05,344 INFO L175 Difference]: Start difference. First operand has 79 places, 83 transitions, 601 flow. Second operand 5 states and 88 transitions. [2024-06-14 15:18:05,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 94 transitions, 821 flow [2024-06-14 15:18:05,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 766 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-06-14 15:18:05,356 INFO L231 Difference]: Finished difference. Result has 78 places, 86 transitions, 596 flow [2024-06-14 15:18:05,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=78, PETRI_TRANSITIONS=86} [2024-06-14 15:18:05,357 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 34 predicate places. [2024-06-14 15:18:05,357 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 86 transitions, 596 flow [2024-06-14 15:18:05,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:05,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:05,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:05,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-14 15:18:05,357 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:05,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 585675707, now seen corresponding path program 1 times [2024-06-14 15:18:05,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:05,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799746775] [2024-06-14 15:18:05,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:05,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:15,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:15,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799746775] [2024-06-14 15:18:15,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799746775] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:15,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:15,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:18:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665875127] [2024-06-14 15:18:15,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:18:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:15,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:18:15,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:18:15,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:18:15,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 86 transitions, 596 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:15,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:15,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:18:15,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:16,863 INFO L124 PetriNetUnfolderBase]: 1920/2970 cut-off events. [2024-06-14 15:18:16,863 INFO L125 PetriNetUnfolderBase]: For 31528/31548 co-relation queries the response was YES. [2024-06-14 15:18:16,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14649 conditions, 2970 events. 1920/2970 cut-off events. For 31528/31548 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14809 event pairs, 605 based on Foata normal form. 7/2976 useless extension candidates. Maximal degree in co-relation 14615. Up to 2767 conditions per place. [2024-06-14 15:18:16,879 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 90 selfloop transitions, 19 changer transitions 0/115 dead transitions. [2024-06-14 15:18:16,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 115 transitions, 928 flow [2024-06-14 15:18:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:18:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:18:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-14 15:18:16,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2024-06-14 15:18:16,880 INFO L175 Difference]: Start difference. First operand has 78 places, 86 transitions, 596 flow. Second operand 7 states and 132 transitions. [2024-06-14 15:18:16,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 115 transitions, 928 flow [2024-06-14 15:18:16,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 115 transitions, 900 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-14 15:18:16,894 INFO L231 Difference]: Finished difference. Result has 82 places, 89 transitions, 670 flow [2024-06-14 15:18:16,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=670, PETRI_PLACES=82, PETRI_TRANSITIONS=89} [2024-06-14 15:18:16,894 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 38 predicate places. [2024-06-14 15:18:16,894 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 89 transitions, 670 flow [2024-06-14 15:18:16,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:18:16,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:16,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:16,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-14 15:18:16,895 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)] === [2024-06-14 15:18:16,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:16,896 INFO L85 PathProgramCache]: Analyzing trace with hash 561473411, now seen corresponding path program 1 times [2024-06-14 15:18:16,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:16,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741797442] [2024-06-14 15:18:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:16,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:28,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:28,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741797442] [2024-06-14 15:18:28,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741797442] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:28,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:18:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809194445] [2024-06-14 15:18:28,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:28,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:18:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:18:28,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:18:28,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:18:28,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 89 transitions, 670 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:28,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:28,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:18:28,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:29,456 INFO L124 PetriNetUnfolderBase]: 2053/3135 cut-off events. [2024-06-14 15:18:29,457 INFO L125 PetriNetUnfolderBase]: For 34576/34576 co-relation queries the response was YES. [2024-06-14 15:18:29,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15340 conditions, 3135 events. 2053/3135 cut-off events. For 34576/34576 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 14950 event pairs, 645 based on Foata normal form. 2/3136 useless extension candidates. Maximal degree in co-relation 15305. Up to 2990 conditions per place. [2024-06-14 15:18:29,473 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 99 selfloop transitions, 17 changer transitions 0/120 dead transitions. [2024-06-14 15:18:29,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 120 transitions, 1019 flow [2024-06-14 15:18:29,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:29,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2024-06-14 15:18:29,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953488372093023 [2024-06-14 15:18:29,475 INFO L175 Difference]: Start difference. First operand has 82 places, 89 transitions, 670 flow. Second operand 8 states and 136 transitions. [2024-06-14 15:18:29,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 120 transitions, 1019 flow [2024-06-14 15:18:29,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 120 transitions, 961 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-14 15:18:29,491 INFO L231 Difference]: Finished difference. Result has 86 places, 94 transitions, 715 flow [2024-06-14 15:18:29,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=715, PETRI_PLACES=86, PETRI_TRANSITIONS=94} [2024-06-14 15:18:29,492 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 42 predicate places. [2024-06-14 15:18:29,492 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 94 transitions, 715 flow [2024-06-14 15:18:29,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:29,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:29,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:29,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-14 15:18:29,493 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:29,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1448673115, now seen corresponding path program 2 times [2024-06-14 15:18:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:29,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136845372] [2024-06-14 15:18:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:40,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136845372] [2024-06-14 15:18:40,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136845372] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:40,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:40,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:18:40,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624767621] [2024-06-14 15:18:40,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:40,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:18:40,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:40,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:18:40,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:18:40,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:18:40,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 94 transitions, 715 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:40,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:40,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:18:40,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:42,189 INFO L124 PetriNetUnfolderBase]: 2075/3169 cut-off events. [2024-06-14 15:18:42,189 INFO L125 PetriNetUnfolderBase]: For 38673/38681 co-relation queries the response was YES. [2024-06-14 15:18:42,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15873 conditions, 3169 events. 2075/3169 cut-off events. For 38673/38681 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 15121 event pairs, 647 based on Foata normal form. 8/3175 useless extension candidates. Maximal degree in co-relation 15836. Up to 2977 conditions per place. [2024-06-14 15:18:42,204 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 93 selfloop transitions, 27 changer transitions 0/124 dead transitions. [2024-06-14 15:18:42,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 124 transitions, 1080 flow [2024-06-14 15:18:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2024-06-14 15:18:42,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39825581395348836 [2024-06-14 15:18:42,206 INFO L175 Difference]: Start difference. First operand has 86 places, 94 transitions, 715 flow. Second operand 8 states and 137 transitions. [2024-06-14 15:18:42,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 124 transitions, 1080 flow [2024-06-14 15:18:42,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 124 transitions, 1022 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-06-14 15:18:42,220 INFO L231 Difference]: Finished difference. Result has 90 places, 101 transitions, 800 flow [2024-06-14 15:18:42,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=800, PETRI_PLACES=90, PETRI_TRANSITIONS=101} [2024-06-14 15:18:42,220 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 46 predicate places. [2024-06-14 15:18:42,220 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 101 transitions, 800 flow [2024-06-14 15:18:42,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:42,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:42,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:42,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-14 15:18:42,221 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:42,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:42,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1448874925, now seen corresponding path program 3 times [2024-06-14 15:18:42,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:42,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885113530] [2024-06-14 15:18:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:42,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:18:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:18:53,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:18:53,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885113530] [2024-06-14 15:18:53,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885113530] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:18:53,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:18:53,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:18:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490782096] [2024-06-14 15:18:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:18:53,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:18:53,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:18:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:18:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:18:53,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:18:53,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 101 transitions, 800 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:53,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:18:53,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:18:53,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:18:54,401 INFO L124 PetriNetUnfolderBase]: 2086/3185 cut-off events. [2024-06-14 15:18:54,401 INFO L125 PetriNetUnfolderBase]: For 43213/43221 co-relation queries the response was YES. [2024-06-14 15:18:54,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16477 conditions, 3185 events. 2086/3185 cut-off events. For 43213/43221 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 15185 event pairs, 642 based on Foata normal form. 8/3191 useless extension candidates. Maximal degree in co-relation 16438. Up to 2993 conditions per place. [2024-06-14 15:18:54,418 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 95 selfloop transitions, 30 changer transitions 0/129 dead transitions. [2024-06-14 15:18:54,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 1177 flow [2024-06-14 15:18:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:18:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:18:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 136 transitions. [2024-06-14 15:18:54,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953488372093023 [2024-06-14 15:18:54,419 INFO L175 Difference]: Start difference. First operand has 90 places, 101 transitions, 800 flow. Second operand 8 states and 136 transitions. [2024-06-14 15:18:54,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 1177 flow [2024-06-14 15:18:54,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 129 transitions, 1095 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-06-14 15:18:54,438 INFO L231 Difference]: Finished difference. Result has 93 places, 106 transitions, 861 flow [2024-06-14 15:18:54,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=861, PETRI_PLACES=93, PETRI_TRANSITIONS=106} [2024-06-14 15:18:54,438 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 49 predicate places. [2024-06-14 15:18:54,439 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 106 transitions, 861 flow [2024-06-14 15:18:54,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:18:54,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:18:54,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:18:54,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-14 15:18:54,439 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:18:54,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:18:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1765201795, now seen corresponding path program 4 times [2024-06-14 15:18:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:18:54,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769110414] [2024-06-14 15:18:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:18:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:18:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:05,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:05,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769110414] [2024-06-14 15:19:05,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769110414] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:05,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:05,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:19:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628857524] [2024-06-14 15:19:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:05,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:19:05,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:19:05,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:19:05,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:19:05,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 106 transitions, 861 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:19:05,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:05,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:19:05,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:07,097 INFO L124 PetriNetUnfolderBase]: 2075/3168 cut-off events. [2024-06-14 15:19:07,098 INFO L125 PetriNetUnfolderBase]: For 46957/46965 co-relation queries the response was YES. [2024-06-14 15:19:07,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16629 conditions, 3168 events. 2075/3168 cut-off events. For 46957/46965 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 15124 event pairs, 642 based on Foata normal form. 8/3174 useless extension candidates. Maximal degree in co-relation 16589. Up to 2940 conditions per place. [2024-06-14 15:19:07,115 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 89 selfloop transitions, 42 changer transitions 0/135 dead transitions. [2024-06-14 15:19:07,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 135 transitions, 1229 flow [2024-06-14 15:19:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:19:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:19:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 152 transitions. [2024-06-14 15:19:07,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39276485788113696 [2024-06-14 15:19:07,116 INFO L175 Difference]: Start difference. First operand has 93 places, 106 transitions, 861 flow. Second operand 9 states and 152 transitions. [2024-06-14 15:19:07,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 135 transitions, 1229 flow [2024-06-14 15:19:07,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 135 transitions, 1155 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-14 15:19:07,137 INFO L231 Difference]: Finished difference. Result has 98 places, 108 transitions, 925 flow [2024-06-14 15:19:07,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=925, PETRI_PLACES=98, PETRI_TRANSITIONS=108} [2024-06-14 15:19:07,137 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 54 predicate places. [2024-06-14 15:19:07,137 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 108 transitions, 925 flow [2024-06-14 15:19:07,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2024-06-14 15:19:07,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:07,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:07,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-14 15:19:07,138 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:07,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1840969671, now seen corresponding path program 1 times [2024-06-14 15:19:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772815631] [2024-06-14 15:19:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:22,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:22,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772815631] [2024-06-14 15:19:22,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772815631] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:22,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:22,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:19:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81208589] [2024-06-14 15:19:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:22,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:19:22,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:22,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:19:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:19:22,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:19:22,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 108 transitions, 925 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:22,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:22,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:19:22,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:23,465 INFO L124 PetriNetUnfolderBase]: 2072/3179 cut-off events. [2024-06-14 15:19:23,466 INFO L125 PetriNetUnfolderBase]: For 51033/51033 co-relation queries the response was YES. [2024-06-14 15:19:23,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16926 conditions, 3179 events. 2072/3179 cut-off events. For 51033/51033 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 15243 event pairs, 629 based on Foata normal form. 1/3179 useless extension candidates. Maximal degree in co-relation 16885. Up to 3053 conditions per place. [2024-06-14 15:19:23,484 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 105 selfloop transitions, 11 changer transitions 0/120 dead transitions. [2024-06-14 15:19:23,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 120 transitions, 1205 flow [2024-06-14 15:19:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:19:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:19:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-06-14 15:19:23,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37209302325581395 [2024-06-14 15:19:23,486 INFO L175 Difference]: Start difference. First operand has 98 places, 108 transitions, 925 flow. Second operand 6 states and 96 transitions. [2024-06-14 15:19:23,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 120 transitions, 1205 flow [2024-06-14 15:19:23,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 1089 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-06-14 15:19:23,509 INFO L231 Difference]: Finished difference. Result has 97 places, 111 transitions, 869 flow [2024-06-14 15:19:23,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=97, PETRI_TRANSITIONS=111} [2024-06-14 15:19:23,509 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 53 predicate places. [2024-06-14 15:19:23,510 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 111 transitions, 869 flow [2024-06-14 15:19:23,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:23,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:23,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:23,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-14 15:19:23,510 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:23,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 107474709, now seen corresponding path program 1 times [2024-06-14 15:19:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136413638] [2024-06-14 15:19:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:33,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136413638] [2024-06-14 15:19:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136413638] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:33,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:33,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:19:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586722572] [2024-06-14 15:19:33,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:33,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:19:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:19:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:19:33,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:19:33,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 111 transitions, 869 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:33,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:33,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:19:33,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:35,363 INFO L124 PetriNetUnfolderBase]: 2064/3166 cut-off events. [2024-06-14 15:19:35,363 INFO L125 PetriNetUnfolderBase]: For 60987/60993 co-relation queries the response was YES. [2024-06-14 15:19:35,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18074 conditions, 3166 events. 2064/3166 cut-off events. For 60987/60993 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 15910 event pairs, 486 based on Foata normal form. 4/3149 useless extension candidates. Maximal degree in co-relation 18032. Up to 2921 conditions per place. [2024-06-14 15:19:35,383 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 118 selfloop transitions, 17 changer transitions 0/144 dead transitions. [2024-06-14 15:19:35,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 144 transitions, 1257 flow [2024-06-14 15:19:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:19:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:19:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-14 15:19:35,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4273255813953488 [2024-06-14 15:19:35,386 INFO L175 Difference]: Start difference. First operand has 97 places, 111 transitions, 869 flow. Second operand 8 states and 147 transitions. [2024-06-14 15:19:35,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 144 transitions, 1257 flow [2024-06-14 15:19:35,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 144 transitions, 1219 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-06-14 15:19:35,412 INFO L231 Difference]: Finished difference. Result has 101 places, 113 transitions, 916 flow [2024-06-14 15:19:35,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=916, PETRI_PLACES=101, PETRI_TRANSITIONS=113} [2024-06-14 15:19:35,413 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 57 predicate places. [2024-06-14 15:19:35,413 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 113 transitions, 916 flow [2024-06-14 15:19:35,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:35,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:35,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:35,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-14 15:19:35,414 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:35,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:35,414 INFO L85 PathProgramCache]: Analyzing trace with hash 107535159, now seen corresponding path program 2 times [2024-06-14 15:19:35,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:35,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787592177] [2024-06-14 15:19:35,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:35,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787592177] [2024-06-14 15:19:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787592177] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:19:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939243851] [2024-06-14 15:19:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:45,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:19:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:19:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:19:46,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:19:46,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 113 transitions, 916 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:46,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:46,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:19:46,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:19:47,575 INFO L124 PetriNetUnfolderBase]: 2081/3189 cut-off events. [2024-06-14 15:19:47,575 INFO L125 PetriNetUnfolderBase]: For 67900/67906 co-relation queries the response was YES. [2024-06-14 15:19:47,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18850 conditions, 3189 events. 2081/3189 cut-off events. For 67900/67906 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16022 event pairs, 604 based on Foata normal form. 4/3175 useless extension candidates. Maximal degree in co-relation 18807. Up to 2951 conditions per place. [2024-06-14 15:19:47,596 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 116 selfloop transitions, 21 changer transitions 0/146 dead transitions. [2024-06-14 15:19:47,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 146 transitions, 1314 flow [2024-06-14 15:19:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:19:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:19:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 148 transitions. [2024-06-14 15:19:47,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-14 15:19:47,599 INFO L175 Difference]: Start difference. First operand has 101 places, 113 transitions, 916 flow. Second operand 8 states and 148 transitions. [2024-06-14 15:19:47,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 146 transitions, 1314 flow [2024-06-14 15:19:47,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 146 transitions, 1247 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-06-14 15:19:47,623 INFO L231 Difference]: Finished difference. Result has 103 places, 115 transitions, 947 flow [2024-06-14 15:19:47,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=947, PETRI_PLACES=103, PETRI_TRANSITIONS=115} [2024-06-14 15:19:47,624 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 59 predicate places. [2024-06-14 15:19:47,624 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 115 transitions, 947 flow [2024-06-14 15:19:47,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:47,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:19:47,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:19:47,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-14 15:19:47,625 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:19:47,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:19:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash 110336629, now seen corresponding path program 1 times [2024-06-14 15:19:47,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:19:47,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107202194] [2024-06-14 15:19:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:19:47,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:19:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:19:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:19:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:19:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107202194] [2024-06-14 15:19:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107202194] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:19:58,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:19:58,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:19:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559329210] [2024-06-14 15:19:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:19:58,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:19:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:19:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:19:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:19:58,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:19:58,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 947 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:19:58,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:19:58,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:19:58,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:00,101 INFO L124 PetriNetUnfolderBase]: 2202/3346 cut-off events. [2024-06-14 15:20:00,101 INFO L125 PetriNetUnfolderBase]: For 73500/73500 co-relation queries the response was YES. [2024-06-14 15:20:00,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19388 conditions, 3346 events. 2202/3346 cut-off events. For 73500/73500 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 16174 event pairs, 570 based on Foata normal form. 4/3349 useless extension candidates. Maximal degree in co-relation 19344. Up to 3011 conditions per place. [2024-06-14 15:20:00,119 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 116 selfloop transitions, 39 changer transitions 0/160 dead transitions. [2024-06-14 15:20:00,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 160 transitions, 1427 flow [2024-06-14 15:20:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:20:00,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:20:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 161 transitions. [2024-06-14 15:20:00,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4160206718346253 [2024-06-14 15:20:00,122 INFO L175 Difference]: Start difference. First operand has 103 places, 115 transitions, 947 flow. Second operand 9 states and 161 transitions. [2024-06-14 15:20:00,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 160 transitions, 1427 flow [2024-06-14 15:20:00,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 160 transitions, 1325 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-06-14 15:20:00,157 INFO L231 Difference]: Finished difference. Result has 107 places, 124 transitions, 1029 flow [2024-06-14 15:20:00,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1029, PETRI_PLACES=107, PETRI_TRANSITIONS=124} [2024-06-14 15:20:00,157 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 63 predicate places. [2024-06-14 15:20:00,157 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 124 transitions, 1029 flow [2024-06-14 15:20:00,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:00,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:00,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:00,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-14 15:20:00,158 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:00,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1793370753, now seen corresponding path program 3 times [2024-06-14 15:20:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:00,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246221940] [2024-06-14 15:20:00,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:11,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:11,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246221940] [2024-06-14 15:20:11,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246221940] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:11,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:11,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:20:11,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256040878] [2024-06-14 15:20:11,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:11,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:20:11,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:11,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:20:11,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:20:11,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:20:11,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 124 transitions, 1029 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:11,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:11,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:20:11,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:12,970 INFO L124 PetriNetUnfolderBase]: 2092/3251 cut-off events. [2024-06-14 15:20:12,970 INFO L125 PetriNetUnfolderBase]: For 81282/81287 co-relation queries the response was YES. [2024-06-14 15:20:12,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19528 conditions, 3251 events. 2092/3251 cut-off events. For 81282/81287 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 16380 event pairs, 529 based on Foata normal form. 8/3251 useless extension candidates. Maximal degree in co-relation 19482. Up to 2915 conditions per place. [2024-06-14 15:20:12,993 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 117 selfloop transitions, 35 changer transitions 0/162 dead transitions. [2024-06-14 15:20:12,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 162 transitions, 1475 flow [2024-06-14 15:20:12,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:20:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:20:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-06-14 15:20:12,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4289405684754522 [2024-06-14 15:20:12,996 INFO L175 Difference]: Start difference. First operand has 107 places, 124 transitions, 1029 flow. Second operand 9 states and 166 transitions. [2024-06-14 15:20:12,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 162 transitions, 1475 flow [2024-06-14 15:20:13,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 162 transitions, 1417 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-06-14 15:20:13,022 INFO L231 Difference]: Finished difference. Result has 111 places, 126 transitions, 1101 flow [2024-06-14 15:20:13,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1101, PETRI_PLACES=111, PETRI_TRANSITIONS=126} [2024-06-14 15:20:13,023 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 67 predicate places. [2024-06-14 15:20:13,023 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 126 transitions, 1101 flow [2024-06-14 15:20:13,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:13,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:13,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:13,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-14 15:20:13,024 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)] === [2024-06-14 15:20:13,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:13,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1928323979, now seen corresponding path program 1 times [2024-06-14 15:20:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:13,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135534376] [2024-06-14 15:20:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:23,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:23,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135534376] [2024-06-14 15:20:23,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135534376] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:23,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:23,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:20:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64486671] [2024-06-14 15:20:23,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:20:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:23,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:20:23,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:20:23,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:20:23,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 126 transitions, 1101 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:23,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:23,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:20:23,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:25,668 INFO L124 PetriNetUnfolderBase]: 2328/3552 cut-off events. [2024-06-14 15:20:25,668 INFO L125 PetriNetUnfolderBase]: For 88377/88377 co-relation queries the response was YES. [2024-06-14 15:20:25,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21009 conditions, 3552 events. 2328/3552 cut-off events. For 88377/88377 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 17456 event pairs, 587 based on Foata normal form. 24/3575 useless extension candidates. Maximal degree in co-relation 20961. Up to 3079 conditions per place. [2024-06-14 15:20:25,687 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 127 selfloop transitions, 41 changer transitions 0/173 dead transitions. [2024-06-14 15:20:25,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 173 transitions, 1607 flow [2024-06-14 15:20:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:20:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:20:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 180 transitions. [2024-06-14 15:20:25,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2024-06-14 15:20:25,690 INFO L175 Difference]: Start difference. First operand has 111 places, 126 transitions, 1101 flow. Second operand 10 states and 180 transitions. [2024-06-14 15:20:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 173 transitions, 1607 flow [2024-06-14 15:20:25,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 173 transitions, 1504 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-06-14 15:20:25,729 INFO L231 Difference]: Finished difference. Result has 115 places, 128 transitions, 1135 flow [2024-06-14 15:20:25,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1135, PETRI_PLACES=115, PETRI_TRANSITIONS=128} [2024-06-14 15:20:25,729 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 71 predicate places. [2024-06-14 15:20:25,729 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 128 transitions, 1135 flow [2024-06-14 15:20:25,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:25,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:25,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:25,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-14 15:20:25,730 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:25,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1224044690, now seen corresponding path program 1 times [2024-06-14 15:20:25,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:25,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927663085] [2024-06-14 15:20:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:25,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:41,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:41,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927663085] [2024-06-14 15:20:41,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927663085] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:41,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:41,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:20:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446281844] [2024-06-14 15:20:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:41,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:20:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:20:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:20:41,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:20:41,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 128 transitions, 1135 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:41,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:41,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:20:41,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:42,570 INFO L124 PetriNetUnfolderBase]: 2374/3600 cut-off events. [2024-06-14 15:20:42,570 INFO L125 PetriNetUnfolderBase]: For 88238/88238 co-relation queries the response was YES. [2024-06-14 15:20:42,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21661 conditions, 3600 events. 2374/3600 cut-off events. For 88238/88238 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 17539 event pairs, 607 based on Foata normal form. 1/3600 useless extension candidates. Maximal degree in co-relation 21612. Up to 3455 conditions per place. [2024-06-14 15:20:42,594 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 129 selfloop transitions, 16 changer transitions 0/150 dead transitions. [2024-06-14 15:20:42,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 1573 flow [2024-06-14 15:20:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:20:42,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:20:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 105 transitions. [2024-06-14 15:20:42,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069767441860465 [2024-06-14 15:20:42,595 INFO L175 Difference]: Start difference. First operand has 115 places, 128 transitions, 1135 flow. Second operand 6 states and 105 transitions. [2024-06-14 15:20:42,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 1573 flow [2024-06-14 15:20:42,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 150 transitions, 1466 flow, removed 15 selfloop flow, removed 8 redundant places. [2024-06-14 15:20:42,643 INFO L231 Difference]: Finished difference. Result has 113 places, 134 transitions, 1136 flow [2024-06-14 15:20:42,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1136, PETRI_PLACES=113, PETRI_TRANSITIONS=134} [2024-06-14 15:20:42,644 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 69 predicate places. [2024-06-14 15:20:42,644 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 134 transitions, 1136 flow [2024-06-14 15:20:42,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:42,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:42,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:42,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-14 15:20:42,644 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:42,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash -247071393, now seen corresponding path program 2 times [2024-06-14 15:20:42,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:42,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007582043] [2024-06-14 15:20:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:20:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:20:54,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:20:54,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007582043] [2024-06-14 15:20:54,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007582043] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:20:54,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:20:54,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:20:54,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420555218] [2024-06-14 15:20:54,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:20:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:20:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:20:54,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:20:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:20:54,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:20:54,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 134 transitions, 1136 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:54,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:20:54,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:20:54,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:20:56,426 INFO L124 PetriNetUnfolderBase]: 2502/3810 cut-off events. [2024-06-14 15:20:56,426 INFO L125 PetriNetUnfolderBase]: For 102220/102231 co-relation queries the response was YES. [2024-06-14 15:20:56,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23364 conditions, 3810 events. 2502/3810 cut-off events. For 102220/102231 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 18807 event pairs, 534 based on Foata normal form. 12/3820 useless extension candidates. Maximal degree in co-relation 23314. Up to 2927 conditions per place. [2024-06-14 15:20:56,455 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 109 selfloop transitions, 76 changer transitions 0/190 dead transitions. [2024-06-14 15:20:56,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 190 transitions, 1932 flow [2024-06-14 15:20:56,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:20:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:20:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2024-06-14 15:20:56,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4325581395348837 [2024-06-14 15:20:56,459 INFO L175 Difference]: Start difference. First operand has 113 places, 134 transitions, 1136 flow. Second operand 10 states and 186 transitions. [2024-06-14 15:20:56,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 190 transitions, 1932 flow [2024-06-14 15:20:56,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 190 transitions, 1894 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-06-14 15:20:56,513 INFO L231 Difference]: Finished difference. Result has 122 places, 143 transitions, 1411 flow [2024-06-14 15:20:56,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1411, PETRI_PLACES=122, PETRI_TRANSITIONS=143} [2024-06-14 15:20:56,514 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 78 predicate places. [2024-06-14 15:20:56,514 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 143 transitions, 1411 flow [2024-06-14 15:20:56,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:20:56,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:20:56,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:20:56,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-14 15:20:56,515 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:20:56,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:20:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1113318223, now seen corresponding path program 3 times [2024-06-14 15:20:56,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:20:56,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77993525] [2024-06-14 15:20:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:20:56,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:20:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:08,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:08,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77993525] [2024-06-14 15:21:08,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77993525] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:08,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:08,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:21:08,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776421273] [2024-06-14 15:21:08,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:08,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:21:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:21:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:21:08,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:21:08,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 143 transitions, 1411 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:08,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:08,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:21:08,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:10,205 INFO L124 PetriNetUnfolderBase]: 2519/3837 cut-off events. [2024-06-14 15:21:10,205 INFO L125 PetriNetUnfolderBase]: For 113318/113329 co-relation queries the response was YES. [2024-06-14 15:21:10,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24711 conditions, 3837 events. 2519/3837 cut-off events. For 113318/113329 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 19045 event pairs, 622 based on Foata normal form. 12/3847 useless extension candidates. Maximal degree in co-relation 24658. Up to 3321 conditions per place. [2024-06-14 15:21:10,233 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 109 selfloop transitions, 71 changer transitions 0/185 dead transitions. [2024-06-14 15:21:10,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 185 transitions, 2017 flow [2024-06-14 15:21:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:21:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:21:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2024-06-14 15:21:10,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41627906976744183 [2024-06-14 15:21:10,236 INFO L175 Difference]: Start difference. First operand has 122 places, 143 transitions, 1411 flow. Second operand 10 states and 179 transitions. [2024-06-14 15:21:10,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 185 transitions, 2017 flow [2024-06-14 15:21:10,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 185 transitions, 1895 flow, removed 32 selfloop flow, removed 5 redundant places. [2024-06-14 15:21:10,311 INFO L231 Difference]: Finished difference. Result has 127 places, 145 transitions, 1494 flow [2024-06-14 15:21:10,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1494, PETRI_PLACES=127, PETRI_TRANSITIONS=145} [2024-06-14 15:21:10,312 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 83 predicate places. [2024-06-14 15:21:10,312 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 145 transitions, 1494 flow [2024-06-14 15:21:10,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:10,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:10,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:10,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-14 15:21:10,313 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:10,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1121599191, now seen corresponding path program 2 times [2024-06-14 15:21:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:10,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523137652] [2024-06-14 15:21:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:10,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:20,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:20,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523137652] [2024-06-14 15:21:20,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523137652] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:20,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:20,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:21:20,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378393181] [2024-06-14 15:21:20,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:20,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:21:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:21:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:21:21,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:21:21,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 145 transitions, 1494 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:21,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:21,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:21:21,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:22,663 INFO L124 PetriNetUnfolderBase]: 2563/3901 cut-off events. [2024-06-14 15:21:22,663 INFO L125 PetriNetUnfolderBase]: For 118710/118721 co-relation queries the response was YES. [2024-06-14 15:21:22,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24886 conditions, 3901 events. 2563/3901 cut-off events. For 118710/118721 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 19385 event pairs, 635 based on Foata normal form. 12/3911 useless extension candidates. Maximal degree in co-relation 24833. Up to 3470 conditions per place. [2024-06-14 15:21:22,685 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 122 selfloop transitions, 58 changer transitions 0/185 dead transitions. [2024-06-14 15:21:22,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 185 transitions, 2029 flow [2024-06-14 15:21:22,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:21:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:21:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-06-14 15:21:22,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42118863049095606 [2024-06-14 15:21:22,688 INFO L175 Difference]: Start difference. First operand has 127 places, 145 transitions, 1494 flow. Second operand 9 states and 163 transitions. [2024-06-14 15:21:22,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 185 transitions, 2029 flow [2024-06-14 15:21:22,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 185 transitions, 1824 flow, removed 22 selfloop flow, removed 9 redundant places. [2024-06-14 15:21:22,739 INFO L231 Difference]: Finished difference. Result has 127 places, 151 transitions, 1506 flow [2024-06-14 15:21:22,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1506, PETRI_PLACES=127, PETRI_TRANSITIONS=151} [2024-06-14 15:21:22,740 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 83 predicate places. [2024-06-14 15:21:22,740 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 151 transitions, 1506 flow [2024-06-14 15:21:22,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:22,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:22,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:22,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-14 15:21:22,741 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:22,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1349493583, now seen corresponding path program 4 times [2024-06-14 15:21:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:22,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839202429] [2024-06-14 15:21:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:33,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839202429] [2024-06-14 15:21:33,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839202429] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:33,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:33,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:21:33,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575921338] [2024-06-14 15:21:33,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:33,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:21:33,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:33,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:21:33,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:21:33,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:21:33,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 151 transitions, 1506 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:33,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:33,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:21:33,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:35,447 INFO L124 PetriNetUnfolderBase]: 2645/4039 cut-off events. [2024-06-14 15:21:35,447 INFO L125 PetriNetUnfolderBase]: For 134232/134243 co-relation queries the response was YES. [2024-06-14 15:21:35,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25689 conditions, 4039 events. 2645/4039 cut-off events. For 134232/134243 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 20308 event pairs, 644 based on Foata normal form. 36/4073 useless extension candidates. Maximal degree in co-relation 25636. Up to 3470 conditions per place. [2024-06-14 15:21:35,473 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 133 selfloop transitions, 58 changer transitions 0/196 dead transitions. [2024-06-14 15:21:35,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 196 transitions, 2062 flow [2024-06-14 15:21:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:21:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:21:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-06-14 15:21:35,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-14 15:21:35,476 INFO L175 Difference]: Start difference. First operand has 127 places, 151 transitions, 1506 flow. Second operand 10 states and 185 transitions. [2024-06-14 15:21:35,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 196 transitions, 2062 flow [2024-06-14 15:21:35,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 196 transitions, 1904 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-06-14 15:21:35,554 INFO L231 Difference]: Finished difference. Result has 132 places, 153 transitions, 1539 flow [2024-06-14 15:21:35,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1348, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1539, PETRI_PLACES=132, PETRI_TRANSITIONS=153} [2024-06-14 15:21:35,555 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 88 predicate places. [2024-06-14 15:21:35,555 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 153 transitions, 1539 flow [2024-06-14 15:21:35,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:35,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:35,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:35,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-14 15:21:35,556 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:35,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:35,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1349678281, now seen corresponding path program 4 times [2024-06-14 15:21:35,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:35,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988813319] [2024-06-14 15:21:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:35,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:21:46,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:21:46,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:21:46,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988813319] [2024-06-14 15:21:46,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988813319] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:21:46,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:21:46,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:21:46,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191812676] [2024-06-14 15:21:46,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:21:46,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:21:46,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:21:46,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:21:46,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:21:46,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:21:46,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 153 transitions, 1539 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:46,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:21:46,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:21:46,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:21:48,335 INFO L124 PetriNetUnfolderBase]: 2557/3983 cut-off events. [2024-06-14 15:21:48,335 INFO L125 PetriNetUnfolderBase]: For 153902/153918 co-relation queries the response was YES. [2024-06-14 15:21:48,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26228 conditions, 3983 events. 2557/3983 cut-off events. For 153902/153918 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 20964 event pairs, 593 based on Foata normal form. 36/4010 useless extension candidates. Maximal degree in co-relation 26173. Up to 3272 conditions per place. [2024-06-14 15:21:48,361 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 107 selfloop transitions, 75 changer transitions 0/193 dead transitions. [2024-06-14 15:21:48,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 193 transitions, 2069 flow [2024-06-14 15:21:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:21:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:21:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-14 15:21:48,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-14 15:21:48,364 INFO L175 Difference]: Start difference. First operand has 132 places, 153 transitions, 1539 flow. Second operand 9 states and 174 transitions. [2024-06-14 15:21:48,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 193 transitions, 2069 flow [2024-06-14 15:21:48,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 193 transitions, 1837 flow, removed 26 selfloop flow, removed 10 redundant places. [2024-06-14 15:21:48,456 INFO L231 Difference]: Finished difference. Result has 131 places, 155 transitions, 1528 flow [2024-06-14 15:21:48,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1528, PETRI_PLACES=131, PETRI_TRANSITIONS=155} [2024-06-14 15:21:48,457 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 87 predicate places. [2024-06-14 15:21:48,457 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 155 transitions, 1528 flow [2024-06-14 15:21:48,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:21:48,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:21:48,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:21:48,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-14 15:21:48,457 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:21:48,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:21:48,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1965450695, now seen corresponding path program 5 times [2024-06-14 15:21:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:21:48,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58381495] [2024-06-14 15:21:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:21:48,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:21:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:00,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58381495] [2024-06-14 15:22:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58381495] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:00,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:22:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105114698] [2024-06-14 15:22:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:00,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:22:00,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:22:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:22:00,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:22:00,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 155 transitions, 1528 flow. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:00,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:00,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:22:00,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:02,308 INFO L124 PetriNetUnfolderBase]: 2696/4128 cut-off events. [2024-06-14 15:22:02,308 INFO L125 PetriNetUnfolderBase]: For 140925/140936 co-relation queries the response was YES. [2024-06-14 15:22:02,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26101 conditions, 4128 events. 2696/4128 cut-off events. For 140925/140936 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 20964 event pairs, 692 based on Foata normal form. 12/4138 useless extension candidates. Maximal degree in co-relation 26047. Up to 3901 conditions per place. [2024-06-14 15:22:02,338 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 147 selfloop transitions, 32 changer transitions 0/184 dead transitions. [2024-06-14 15:22:02,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 184 transitions, 1994 flow [2024-06-14 15:22:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:22:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:22:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2024-06-14 15:22:02,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39018087855297157 [2024-06-14 15:22:02,340 INFO L175 Difference]: Start difference. First operand has 131 places, 155 transitions, 1528 flow. Second operand 9 states and 151 transitions. [2024-06-14 15:22:02,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 184 transitions, 1994 flow [2024-06-14 15:22:02,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 184 transitions, 1809 flow, removed 21 selfloop flow, removed 7 redundant places. [2024-06-14 15:22:02,429 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 1454 flow [2024-06-14 15:22:02,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1454, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2024-06-14 15:22:02,430 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 89 predicate places. [2024-06-14 15:22:02,430 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 1454 flow [2024-06-14 15:22:02,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:02,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:02,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:02,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-14 15:22:02,430 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:02,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1235472530, now seen corresponding path program 2 times [2024-06-14 15:22:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:02,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001906194] [2024-06-14 15:22:02,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:02,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:16,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:16,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001906194] [2024-06-14 15:22:16,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001906194] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:16,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:16,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:22:16,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583856138] [2024-06-14 15:22:16,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:16,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:22:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:16,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:22:16,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:22:16,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:22:16,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 1454 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:16,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:16,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:22:16,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:18,484 INFO L124 PetriNetUnfolderBase]: 2693/4124 cut-off events. [2024-06-14 15:22:18,485 INFO L125 PetriNetUnfolderBase]: For 143787/143798 co-relation queries the response was YES. [2024-06-14 15:22:18,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25748 conditions, 4124 events. 2693/4124 cut-off events. For 143787/143798 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 21008 event pairs, 697 based on Foata normal form. 9/4131 useless extension candidates. Maximal degree in co-relation 25693. Up to 3978 conditions per place. [2024-06-14 15:22:18,512 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 144 selfloop transitions, 16 changer transitions 0/165 dead transitions. [2024-06-14 15:22:18,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 165 transitions, 1796 flow [2024-06-14 15:22:18,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:22:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:22:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-06-14 15:22:18,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3798449612403101 [2024-06-14 15:22:18,513 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 1454 flow. Second operand 6 states and 98 transitions. [2024-06-14 15:22:18,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 165 transitions, 1796 flow [2024-06-14 15:22:18,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 165 transitions, 1671 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-06-14 15:22:18,586 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 1367 flow [2024-06-14 15:22:18,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1329, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1367, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-06-14 15:22:18,587 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 88 predicate places. [2024-06-14 15:22:18,587 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 1367 flow [2024-06-14 15:22:18,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:18,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:18,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:18,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-14 15:22:18,587 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:18,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1229764562, now seen corresponding path program 1 times [2024-06-14 15:22:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:18,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967865920] [2024-06-14 15:22:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:18,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:31,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:31,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967865920] [2024-06-14 15:22:31,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967865920] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:31,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:31,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:22:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375250024] [2024-06-14 15:22:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:31,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:22:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:31,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:22:31,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:22:31,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:22:31,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 1367 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:31,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:31,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:22:31,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:33,009 INFO L124 PetriNetUnfolderBase]: 2446/3847 cut-off events. [2024-06-14 15:22:33,010 INFO L125 PetriNetUnfolderBase]: For 131102/131102 co-relation queries the response was YES. [2024-06-14 15:22:33,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23422 conditions, 3847 events. 2446/3847 cut-off events. For 131102/131102 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 20191 event pairs, 606 based on Foata normal form. 1/3847 useless extension candidates. Maximal degree in co-relation 23366. Up to 3630 conditions per place. [2024-06-14 15:22:33,034 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 153 selfloop transitions, 16 changer transitions 0/175 dead transitions. [2024-06-14 15:22:33,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 175 transitions, 1849 flow [2024-06-14 15:22:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:22:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:22:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-06-14 15:22:33,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41472868217054265 [2024-06-14 15:22:33,035 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 1367 flow. Second operand 6 states and 107 transitions. [2024-06-14 15:22:33,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 175 transitions, 1849 flow [2024-06-14 15:22:33,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 175 transitions, 1809 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-06-14 15:22:33,098 INFO L231 Difference]: Finished difference. Result has 133 places, 162 transitions, 1423 flow [2024-06-14 15:22:33,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1327, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1423, PETRI_PLACES=133, PETRI_TRANSITIONS=162} [2024-06-14 15:22:33,098 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 89 predicate places. [2024-06-14 15:22:33,098 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 162 transitions, 1423 flow [2024-06-14 15:22:33,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:33,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:33,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:33,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-14 15:22:33,099 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:33,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:33,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1722561332, now seen corresponding path program 2 times [2024-06-14 15:22:33,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:33,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585897907] [2024-06-14 15:22:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:33,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:22:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:22:46,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:22:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585897907] [2024-06-14 15:22:46,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585897907] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:22:46,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:22:46,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:22:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410095444] [2024-06-14 15:22:46,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:22:46,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:22:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:22:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:22:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:22:46,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:22:46,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 162 transitions, 1423 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:46,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:22:46,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:22:46,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:22:48,093 INFO L124 PetriNetUnfolderBase]: 2443/3843 cut-off events. [2024-06-14 15:22:48,094 INFO L125 PetriNetUnfolderBase]: For 138657/138657 co-relation queries the response was YES. [2024-06-14 15:22:48,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23935 conditions, 3843 events. 2443/3843 cut-off events. For 138657/138657 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 20179 event pairs, 605 based on Foata normal form. 1/3843 useless extension candidates. Maximal degree in co-relation 23878. Up to 3639 conditions per place. [2024-06-14 15:22:48,120 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 154 selfloop transitions, 11 changer transitions 0/171 dead transitions. [2024-06-14 15:22:48,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 1775 flow [2024-06-14 15:22:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:22:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:22:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2024-06-14 15:22:48,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39147286821705424 [2024-06-14 15:22:48,121 INFO L175 Difference]: Start difference. First operand has 133 places, 162 transitions, 1423 flow. Second operand 6 states and 101 transitions. [2024-06-14 15:22:48,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 1775 flow [2024-06-14 15:22:48,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 171 transitions, 1731 flow, removed 18 selfloop flow, removed 2 redundant places. [2024-06-14 15:22:48,187 INFO L231 Difference]: Finished difference. Result has 137 places, 162 transitions, 1407 flow [2024-06-14 15:22:48,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1407, PETRI_PLACES=137, PETRI_TRANSITIONS=162} [2024-06-14 15:22:48,187 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 93 predicate places. [2024-06-14 15:22:48,188 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 162 transitions, 1407 flow [2024-06-14 15:22:48,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:22:48,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:22:48,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:22:48,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-14 15:22:48,188 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:22:48,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:22:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1706482128, now seen corresponding path program 1 times [2024-06-14 15:22:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:22:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497367827] [2024-06-14 15:22:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:22:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:22:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:05,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:05,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497367827] [2024-06-14 15:23:05,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497367827] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:05,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:05,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:23:05,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018534596] [2024-06-14 15:23:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:05,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:23:05,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:23:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:23:05,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:23:05,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 162 transitions, 1407 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:05,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:05,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:23:05,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:06,851 INFO L124 PetriNetUnfolderBase]: 2576/3974 cut-off events. [2024-06-14 15:23:06,851 INFO L125 PetriNetUnfolderBase]: For 144095/144095 co-relation queries the response was YES. [2024-06-14 15:23:06,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24759 conditions, 3974 events. 2576/3974 cut-off events. For 144095/144095 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 20249 event pairs, 642 based on Foata normal form. 2/3975 useless extension candidates. Maximal degree in co-relation 24700. Up to 3871 conditions per place. [2024-06-14 15:23:06,879 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 158 selfloop transitions, 14 changer transitions 0/176 dead transitions. [2024-06-14 15:23:06,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 176 transitions, 1811 flow [2024-06-14 15:23:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:23:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:23:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 109 transitions. [2024-06-14 15:23:06,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36212624584717606 [2024-06-14 15:23:06,880 INFO L175 Difference]: Start difference. First operand has 137 places, 162 transitions, 1407 flow. Second operand 7 states and 109 transitions. [2024-06-14 15:23:06,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 176 transitions, 1811 flow [2024-06-14 15:23:06,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 176 transitions, 1781 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-06-14 15:23:06,964 INFO L231 Difference]: Finished difference. Result has 139 places, 165 transitions, 1451 flow [2024-06-14 15:23:06,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1377, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1451, PETRI_PLACES=139, PETRI_TRANSITIONS=165} [2024-06-14 15:23:06,964 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 95 predicate places. [2024-06-14 15:23:06,964 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 165 transitions, 1451 flow [2024-06-14 15:23:06,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:06,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:06,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:06,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-14 15:23:06,965 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:06,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:06,965 INFO L85 PathProgramCache]: Analyzing trace with hash -709617742, now seen corresponding path program 1 times [2024-06-14 15:23:06,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:06,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709225475] [2024-06-14 15:23:06,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:06,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:23,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:23,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709225475] [2024-06-14 15:23:23,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709225475] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:23,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:23,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:23:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513731268] [2024-06-14 15:23:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:23,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:23:23,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:23:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:23:23,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:23:23,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 165 transitions, 1451 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:23,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:23,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:23:23,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:25,704 INFO L124 PetriNetUnfolderBase]: 2696/4127 cut-off events. [2024-06-14 15:23:25,704 INFO L125 PetriNetUnfolderBase]: For 173282/173282 co-relation queries the response was YES. [2024-06-14 15:23:25,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27204 conditions, 4127 events. 2696/4127 cut-off events. For 173282/173282 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 20963 event pairs, 686 based on Foata normal form. 2/4128 useless extension candidates. Maximal degree in co-relation 27144. Up to 3934 conditions per place. [2024-06-14 15:23:25,732 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 165 selfloop transitions, 26 changer transitions 0/196 dead transitions. [2024-06-14 15:23:25,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 196 transitions, 2033 flow [2024-06-14 15:23:25,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:23:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:23:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-06-14 15:23:25,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2024-06-14 15:23:25,733 INFO L175 Difference]: Start difference. First operand has 139 places, 165 transitions, 1451 flow. Second operand 7 states and 126 transitions. [2024-06-14 15:23:25,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 196 transitions, 2033 flow [2024-06-14 15:23:25,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 196 transitions, 1981 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-14 15:23:25,818 INFO L231 Difference]: Finished difference. Result has 141 places, 171 transitions, 1532 flow [2024-06-14 15:23:25,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1399, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1532, PETRI_PLACES=141, PETRI_TRANSITIONS=171} [2024-06-14 15:23:25,819 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 97 predicate places. [2024-06-14 15:23:25,819 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 171 transitions, 1532 flow [2024-06-14 15:23:25,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:25,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:25,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:25,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-14 15:23:25,819 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:25,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1589900213, now seen corresponding path program 1 times [2024-06-14 15:23:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047930821] [2024-06-14 15:23:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:25,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:36,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:36,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047930821] [2024-06-14 15:23:36,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047930821] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:36,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:36,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:23:36,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912048102] [2024-06-14 15:23:36,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:36,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:23:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:36,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:23:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:23:36,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:23:36,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 171 transitions, 1532 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:36,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:36,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:23:36,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:38,906 INFO L124 PetriNetUnfolderBase]: 2899/4460 cut-off events. [2024-06-14 15:23:38,906 INFO L125 PetriNetUnfolderBase]: For 204656/204656 co-relation queries the response was YES. [2024-06-14 15:23:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30080 conditions, 4460 events. 2899/4460 cut-off events. For 204656/204656 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 23236 event pairs, 717 based on Foata normal form. 16/4475 useless extension candidates. Maximal degree in co-relation 30019. Up to 3650 conditions per place. [2024-06-14 15:23:38,941 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 179 selfloop transitions, 43 changer transitions 0/227 dead transitions. [2024-06-14 15:23:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 227 transitions, 2332 flow [2024-06-14 15:23:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:23:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:23:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2024-06-14 15:23:38,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42790697674418604 [2024-06-14 15:23:38,944 INFO L175 Difference]: Start difference. First operand has 141 places, 171 transitions, 1532 flow. Second operand 10 states and 184 transitions. [2024-06-14 15:23:38,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 227 transitions, 2332 flow [2024-06-14 15:23:39,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 227 transitions, 2280 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-06-14 15:23:39,083 INFO L231 Difference]: Finished difference. Result has 149 places, 175 transitions, 1671 flow [2024-06-14 15:23:39,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1480, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1671, PETRI_PLACES=149, PETRI_TRANSITIONS=175} [2024-06-14 15:23:39,084 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 105 predicate places. [2024-06-14 15:23:39,084 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 175 transitions, 1671 flow [2024-06-14 15:23:39,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:39,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:39,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:39,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-14 15:23:39,084 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:39,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash -234362575, now seen corresponding path program 2 times [2024-06-14 15:23:39,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:39,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516980519] [2024-06-14 15:23:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:39,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:23:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:23:50,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:23:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516980519] [2024-06-14 15:23:50,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516980519] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:23:50,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:23:50,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:23:50,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414397442] [2024-06-14 15:23:50,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:23:50,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:23:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:23:50,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:23:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:23:50,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:23:50,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 175 transitions, 1671 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:50,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:23:50,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:23:50,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:23:52,551 INFO L124 PetriNetUnfolderBase]: 2963/4566 cut-off events. [2024-06-14 15:23:52,551 INFO L125 PetriNetUnfolderBase]: For 215587/215587 co-relation queries the response was YES. [2024-06-14 15:23:52,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30946 conditions, 4566 events. 2963/4566 cut-off events. For 215587/215587 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 24045 event pairs, 749 based on Foata normal form. 20/4585 useless extension candidates. Maximal degree in co-relation 30882. Up to 4052 conditions per place. [2024-06-14 15:23:52,584 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 176 selfloop transitions, 45 changer transitions 0/226 dead transitions. [2024-06-14 15:23:52,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 226 transitions, 2326 flow [2024-06-14 15:23:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:23:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:23:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 181 transitions. [2024-06-14 15:23:52,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42093023255813955 [2024-06-14 15:23:52,587 INFO L175 Difference]: Start difference. First operand has 149 places, 175 transitions, 1671 flow. Second operand 10 states and 181 transitions. [2024-06-14 15:23:52,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 226 transitions, 2326 flow [2024-06-14 15:23:52,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 226 transitions, 2270 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-06-14 15:23:52,749 INFO L231 Difference]: Finished difference. Result has 155 places, 181 transitions, 1814 flow [2024-06-14 15:23:52,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1615, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1814, PETRI_PLACES=155, PETRI_TRANSITIONS=181} [2024-06-14 15:23:52,749 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 111 predicate places. [2024-06-14 15:23:52,749 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 181 transitions, 1814 flow [2024-06-14 15:23:52,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:23:52,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:23:52,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:23:52,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-14 15:23:52,750 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:23:52,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:23:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash -709319212, now seen corresponding path program 2 times [2024-06-14 15:23:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:23:52,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970151537] [2024-06-14 15:23:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:23:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:23:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:09,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970151537] [2024-06-14 15:24:09,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970151537] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:09,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:09,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:24:09,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5136751] [2024-06-14 15:24:09,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:09,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:24:09,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:09,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:24:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:24:09,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:24:09,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 181 transitions, 1814 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:09,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:09,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:24:09,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:12,159 INFO L124 PetriNetUnfolderBase]: 2973/4580 cut-off events. [2024-06-14 15:24:12,159 INFO L125 PetriNetUnfolderBase]: For 216531/216531 co-relation queries the response was YES. [2024-06-14 15:24:12,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31437 conditions, 4580 events. 2973/4580 cut-off events. For 216531/216531 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 24161 event pairs, 770 based on Foata normal form. 2/4581 useless extension candidates. Maximal degree in co-relation 31370. Up to 4383 conditions per place. [2024-06-14 15:24:12,192 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 177 selfloop transitions, 30 changer transitions 0/212 dead transitions. [2024-06-14 15:24:12,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 212 transitions, 2408 flow [2024-06-14 15:24:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:24:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:24:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2024-06-14 15:24:12,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39018087855297157 [2024-06-14 15:24:12,194 INFO L175 Difference]: Start difference. First operand has 155 places, 181 transitions, 1814 flow. Second operand 9 states and 151 transitions. [2024-06-14 15:24:12,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 212 transitions, 2408 flow [2024-06-14 15:24:12,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 212 transitions, 2292 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-06-14 15:24:12,359 INFO L231 Difference]: Finished difference. Result has 156 places, 184 transitions, 1798 flow [2024-06-14 15:24:12,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1698, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1798, PETRI_PLACES=156, PETRI_TRANSITIONS=184} [2024-06-14 15:24:12,360 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 112 predicate places. [2024-06-14 15:24:12,360 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 184 transitions, 1798 flow [2024-06-14 15:24:12,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:12,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:12,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:12,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-14 15:24:12,361 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:12,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1487473022, now seen corresponding path program 1 times [2024-06-14 15:24:12,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:12,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309597226] [2024-06-14 15:24:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:12,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:28,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309597226] [2024-06-14 15:24:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309597226] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:28,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:28,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:24:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066464343] [2024-06-14 15:24:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:28,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:24:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:28,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:24:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:24:29,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2024-06-14 15:24:29,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 184 transitions, 1798 flow. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:29,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:29,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2024-06-14 15:24:29,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:31,052 INFO L124 PetriNetUnfolderBase]: 3117/4726 cut-off events. [2024-06-14 15:24:31,052 INFO L125 PetriNetUnfolderBase]: For 222049/222049 co-relation queries the response was YES. [2024-06-14 15:24:31,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32122 conditions, 4726 events. 3117/4726 cut-off events. For 222049/222049 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 24329 event pairs, 808 based on Foata normal form. 1/4726 useless extension candidates. Maximal degree in co-relation 32054. Up to 4677 conditions per place. [2024-06-14 15:24:31,088 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 181 selfloop transitions, 25 changer transitions 0/209 dead transitions. [2024-06-14 15:24:31,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 209 transitions, 2406 flow [2024-06-14 15:24:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:24:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:24:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 133 transitions. [2024-06-14 15:24:31,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34366925064599485 [2024-06-14 15:24:31,089 INFO L175 Difference]: Start difference. First operand has 156 places, 184 transitions, 1798 flow. Second operand 9 states and 133 transitions. [2024-06-14 15:24:31,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 209 transitions, 2406 flow [2024-06-14 15:24:31,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 209 transitions, 2324 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-06-14 15:24:31,256 INFO L231 Difference]: Finished difference. Result has 158 places, 190 transitions, 1854 flow [2024-06-14 15:24:31,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1854, PETRI_PLACES=158, PETRI_TRANSITIONS=190} [2024-06-14 15:24:31,257 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 114 predicate places. [2024-06-14 15:24:31,257 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 190 transitions, 1854 flow [2024-06-14 15:24:31,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:31,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:31,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:31,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-14 15:24:31,258 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)] === [2024-06-14 15:24:31,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:31,258 INFO L85 PathProgramCache]: Analyzing trace with hash -409835573, now seen corresponding path program 3 times [2024-06-14 15:24:31,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465438015] [2024-06-14 15:24:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:31,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:43,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:43,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465438015] [2024-06-14 15:24:43,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465438015] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:43,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:43,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:24:43,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408443986] [2024-06-14 15:24:43,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:43,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:24:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:24:43,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:24:43,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:24:43,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 190 transitions, 1854 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:43,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:43,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:24:43,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:45,542 INFO L124 PetriNetUnfolderBase]: 2954/4545 cut-off events. [2024-06-14 15:24:45,542 INFO L125 PetriNetUnfolderBase]: For 233291/233299 co-relation queries the response was YES. [2024-06-14 15:24:45,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31040 conditions, 4545 events. 2954/4545 cut-off events. For 233291/233299 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 23810 event pairs, 703 based on Foata normal form. 26/4569 useless extension candidates. Maximal degree in co-relation 30971. Up to 3961 conditions per place. [2024-06-14 15:24:45,578 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 162 selfloop transitions, 64 changer transitions 0/233 dead transitions. [2024-06-14 15:24:45,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 233 transitions, 2432 flow [2024-06-14 15:24:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:24:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:24:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2024-06-14 15:24:45,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4232558139534884 [2024-06-14 15:24:45,582 INFO L175 Difference]: Start difference. First operand has 158 places, 190 transitions, 1854 flow. Second operand 10 states and 182 transitions. [2024-06-14 15:24:45,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 233 transitions, 2432 flow [2024-06-14 15:24:45,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 233 transitions, 2350 flow, removed 29 selfloop flow, removed 5 redundant places. [2024-06-14 15:24:45,744 INFO L231 Difference]: Finished difference. Result has 163 places, 190 transitions, 1910 flow [2024-06-14 15:24:45,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1910, PETRI_PLACES=163, PETRI_TRANSITIONS=190} [2024-06-14 15:24:45,745 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 119 predicate places. [2024-06-14 15:24:45,745 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 190 transitions, 1910 flow [2024-06-14 15:24:45,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:45,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:24:45,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:24:45,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-14 15:24:45,745 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:24:45,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:24:45,746 INFO L85 PathProgramCache]: Analyzing trace with hash 673962161, now seen corresponding path program 4 times [2024-06-14 15:24:45,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:24:45,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114560489] [2024-06-14 15:24:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:24:45,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:24:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:24:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:24:57,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:24:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114560489] [2024-06-14 15:24:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114560489] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:24:57,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:24:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:24:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433538761] [2024-06-14 15:24:57,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:24:57,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:24:57,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:24:57,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:24:57,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:24:57,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:24:57,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 190 transitions, 1910 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:24:57,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:24:57,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:24:57,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:24:59,834 INFO L124 PetriNetUnfolderBase]: 3187/4930 cut-off events. [2024-06-14 15:24:59,835 INFO L125 PetriNetUnfolderBase]: For 251777/251785 co-relation queries the response was YES. [2024-06-14 15:24:59,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33655 conditions, 4930 events. 3187/4930 cut-off events. For 251777/251785 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 26543 event pairs, 737 based on Foata normal form. 22/4950 useless extension candidates. Maximal degree in co-relation 33584. Up to 3827 conditions per place. [2024-06-14 15:24:59,871 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 156 selfloop transitions, 82 changer transitions 0/245 dead transitions. [2024-06-14 15:24:59,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 245 transitions, 2783 flow [2024-06-14 15:24:59,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:24:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:24:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2024-06-14 15:24:59,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43488372093023253 [2024-06-14 15:24:59,874 INFO L175 Difference]: Start difference. First operand has 163 places, 190 transitions, 1910 flow. Second operand 10 states and 187 transitions. [2024-06-14 15:24:59,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 245 transitions, 2783 flow [2024-06-14 15:25:00,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 245 transitions, 2623 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-06-14 15:25:00,050 INFO L231 Difference]: Finished difference. Result has 165 places, 196 transitions, 2054 flow [2024-06-14 15:25:00,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1754, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2054, PETRI_PLACES=165, PETRI_TRANSITIONS=196} [2024-06-14 15:25:00,050 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 121 predicate places. [2024-06-14 15:25:00,051 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 196 transitions, 2054 flow [2024-06-14 15:25:00,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:00,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:00,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:00,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-14 15:25:00,051 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:00,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2096006193, now seen corresponding path program 5 times [2024-06-14 15:25:00,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:00,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148927184] [2024-06-14 15:25:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:12,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148927184] [2024-06-14 15:25:12,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148927184] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:12,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:12,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:25:12,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062750611] [2024-06-14 15:25:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:12,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:25:12,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:12,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:25:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:25:12,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:25:12,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 196 transitions, 2054 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:12,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:12,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:25:12,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:14,433 INFO L124 PetriNetUnfolderBase]: 3323/5158 cut-off events. [2024-06-14 15:25:14,433 INFO L125 PetriNetUnfolderBase]: For 264204/264212 co-relation queries the response was YES. [2024-06-14 15:25:14,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35475 conditions, 5158 events. 3323/5158 cut-off events. For 264204/264212 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 28224 event pairs, 796 based on Foata normal form. 22/5178 useless extension candidates. Maximal degree in co-relation 35402. Up to 4083 conditions per place. [2024-06-14 15:25:14,475 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 164 selfloop transitions, 77 changer transitions 0/248 dead transitions. [2024-06-14 15:25:14,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 248 transitions, 2916 flow [2024-06-14 15:25:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:25:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:25:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-06-14 15:25:14,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43953488372093025 [2024-06-14 15:25:14,478 INFO L175 Difference]: Start difference. First operand has 165 places, 196 transitions, 2054 flow. Second operand 10 states and 189 transitions. [2024-06-14 15:25:14,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 248 transitions, 2916 flow [2024-06-14 15:25:14,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 248 transitions, 2850 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-14 15:25:14,688 INFO L231 Difference]: Finished difference. Result has 172 places, 199 transitions, 2256 flow [2024-06-14 15:25:14,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1988, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2256, PETRI_PLACES=172, PETRI_TRANSITIONS=199} [2024-06-14 15:25:14,689 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 128 predicate places. [2024-06-14 15:25:14,689 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 199 transitions, 2256 flow [2024-06-14 15:25:14,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:14,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:14,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:14,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-14 15:25:14,690 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:14,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash -143929043, now seen corresponding path program 6 times [2024-06-14 15:25:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:14,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499429770] [2024-06-14 15:25:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:14,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:26,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:26,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499429770] [2024-06-14 15:25:26,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499429770] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:26,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:26,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:25:26,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999262583] [2024-06-14 15:25:26,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:26,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:25:26,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:26,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:25:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:25:26,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:25:26,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 199 transitions, 2256 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:26,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:26,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:25:26,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:28,522 INFO L124 PetriNetUnfolderBase]: 3331/5178 cut-off events. [2024-06-14 15:25:28,522 INFO L125 PetriNetUnfolderBase]: For 272341/272349 co-relation queries the response was YES. [2024-06-14 15:25:28,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35866 conditions, 5178 events. 3331/5178 cut-off events. For 272341/272349 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 28319 event pairs, 712 based on Foata normal form. 22/5198 useless extension candidates. Maximal degree in co-relation 35790. Up to 2955 conditions per place. [2024-06-14 15:25:28,560 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 150 selfloop transitions, 94 changer transitions 0/251 dead transitions. [2024-06-14 15:25:28,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 251 transitions, 3084 flow [2024-06-14 15:25:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:25:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:25:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-06-14 15:25:28,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43023255813953487 [2024-06-14 15:25:28,563 INFO L175 Difference]: Start difference. First operand has 172 places, 199 transitions, 2256 flow. Second operand 10 states and 185 transitions. [2024-06-14 15:25:28,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 251 transitions, 3084 flow [2024-06-14 15:25:28,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 251 transitions, 2938 flow, removed 19 selfloop flow, removed 6 redundant places. [2024-06-14 15:25:28,759 INFO L231 Difference]: Finished difference. Result has 176 places, 200 transitions, 2348 flow [2024-06-14 15:25:28,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2348, PETRI_PLACES=176, PETRI_TRANSITIONS=200} [2024-06-14 15:25:28,759 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 132 predicate places. [2024-06-14 15:25:28,759 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 200 transitions, 2348 flow [2024-06-14 15:25:28,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:28,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:28,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:28,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-14 15:25:28,760 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:28,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:28,760 INFO L85 PathProgramCache]: Analyzing trace with hash -354640090, now seen corresponding path program 2 times [2024-06-14 15:25:28,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44707941] [2024-06-14 15:25:28,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:28,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:25:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:25:43,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:25:43,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44707941] [2024-06-14 15:25:43,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44707941] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:25:43,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:25:43,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:25:43,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635805663] [2024-06-14 15:25:43,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:25:43,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:25:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:25:43,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:25:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:25:43,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2024-06-14 15:25:43,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 200 transitions, 2348 flow. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:43,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:25:43,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2024-06-14 15:25:43,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:25:45,720 INFO L124 PetriNetUnfolderBase]: 3463/5312 cut-off events. [2024-06-14 15:25:45,720 INFO L125 PetriNetUnfolderBase]: For 271982/271990 co-relation queries the response was YES. [2024-06-14 15:25:45,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37094 conditions, 5312 events. 3463/5312 cut-off events. For 271982/271990 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 28700 event pairs, 912 based on Foata normal form. 7/5317 useless extension candidates. Maximal degree in co-relation 37016. Up to 5260 conditions per place. [2024-06-14 15:25:45,760 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 184 selfloop transitions, 27 changer transitions 0/214 dead transitions. [2024-06-14 15:25:45,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 214 transitions, 2914 flow [2024-06-14 15:25:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:25:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:25:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-06-14 15:25:45,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3521594684385382 [2024-06-14 15:25:45,762 INFO L175 Difference]: Start difference. First operand has 176 places, 200 transitions, 2348 flow. Second operand 7 states and 106 transitions. [2024-06-14 15:25:45,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 214 transitions, 2914 flow [2024-06-14 15:25:45,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 214 transitions, 2694 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-06-14 15:25:45,941 INFO L231 Difference]: Finished difference. Result has 175 places, 203 transitions, 2224 flow [2024-06-14 15:25:45,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2224, PETRI_PLACES=175, PETRI_TRANSITIONS=203} [2024-06-14 15:25:45,941 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 131 predicate places. [2024-06-14 15:25:45,942 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 203 transitions, 2224 flow [2024-06-14 15:25:45,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:25:45,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:25:45,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:25:45,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-14 15:25:45,942 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:25:45,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:25:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1360908950, now seen corresponding path program 3 times [2024-06-14 15:25:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:25:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363802322] [2024-06-14 15:25:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:25:45,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:25:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:26:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:26:03,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:26:03,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363802322] [2024-06-14 15:26:03,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363802322] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:26:03,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:26:03,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:26:03,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910422236] [2024-06-14 15:26:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:26:03,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:26:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:26:03,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:26:03,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:26:03,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:26:03,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 203 transitions, 2224 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:03,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:26:03,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:26:03,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:26:05,726 INFO L124 PetriNetUnfolderBase]: 3330/5177 cut-off events. [2024-06-14 15:26:05,726 INFO L125 PetriNetUnfolderBase]: For 277122/277130 co-relation queries the response was YES. [2024-06-14 15:26:05,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35782 conditions, 5177 events. 3330/5177 cut-off events. For 277122/277130 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 28533 event pairs, 877 based on Foata normal form. 8/5183 useless extension candidates. Maximal degree in co-relation 35703. Up to 4977 conditions per place. [2024-06-14 15:26:05,769 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 185 selfloop transitions, 30 changer transitions 0/223 dead transitions. [2024-06-14 15:26:05,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 223 transitions, 2706 flow [2024-06-14 15:26:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:26:05,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:26:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 143 transitions. [2024-06-14 15:26:05,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3695090439276486 [2024-06-14 15:26:05,771 INFO L175 Difference]: Start difference. First operand has 175 places, 203 transitions, 2224 flow. Second operand 9 states and 143 transitions. [2024-06-14 15:26:05,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 223 transitions, 2706 flow [2024-06-14 15:26:05,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 223 transitions, 2628 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-06-14 15:26:05,998 INFO L231 Difference]: Finished difference. Result has 180 places, 203 transitions, 2212 flow [2024-06-14 15:26:05,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2212, PETRI_PLACES=180, PETRI_TRANSITIONS=203} [2024-06-14 15:26:05,999 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 136 predicate places. [2024-06-14 15:26:05,999 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 203 transitions, 2212 flow [2024-06-14 15:26:05,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:05,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:26:06,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:26:06,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-14 15:26:06,000 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:26:06,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:26:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash -355055800, now seen corresponding path program 3 times [2024-06-14 15:26:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:26:06,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635919667] [2024-06-14 15:26:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:26:06,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:26:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:26:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:26:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:26:21,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635919667] [2024-06-14 15:26:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635919667] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:26:21,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:26:21,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:26:21,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711122456] [2024-06-14 15:26:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:26:21,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:26:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:26:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:26:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:26:21,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2024-06-14 15:26:21,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 203 transitions, 2212 flow. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:21,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:26:21,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2024-06-14 15:26:21,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:26:23,814 INFO L124 PetriNetUnfolderBase]: 3454/5300 cut-off events. [2024-06-14 15:26:23,814 INFO L125 PetriNetUnfolderBase]: For 285737/285742 co-relation queries the response was YES. [2024-06-14 15:26:23,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36596 conditions, 5300 events. 3454/5300 cut-off events. For 285737/285742 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 28629 event pairs, 916 based on Foata normal form. 5/5303 useless extension candidates. Maximal degree in co-relation 36516. Up to 5249 conditions per place. [2024-06-14 15:26:23,857 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 184 selfloop transitions, 26 changer transitions 0/213 dead transitions. [2024-06-14 15:26:23,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 213 transitions, 2656 flow [2024-06-14 15:26:23,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:26:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:26:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-06-14 15:26:23,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3521594684385382 [2024-06-14 15:26:23,858 INFO L175 Difference]: Start difference. First operand has 180 places, 203 transitions, 2212 flow. Second operand 7 states and 106 transitions. [2024-06-14 15:26:23,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 213 transitions, 2656 flow [2024-06-14 15:26:24,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 213 transitions, 2560 flow, removed 15 selfloop flow, removed 8 redundant places. [2024-06-14 15:26:24,075 INFO L231 Difference]: Finished difference. Result has 179 places, 203 transitions, 2174 flow [2024-06-14 15:26:24,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2174, PETRI_PLACES=179, PETRI_TRANSITIONS=203} [2024-06-14 15:26:24,076 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 135 predicate places. [2024-06-14 15:26:24,076 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 203 transitions, 2174 flow [2024-06-14 15:26:24,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:24,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:26:24,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:26:24,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-14 15:26:24,077 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:26:24,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:26:24,077 INFO L85 PathProgramCache]: Analyzing trace with hash -532122964, now seen corresponding path program 1 times [2024-06-14 15:26:24,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:26:24,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400425348] [2024-06-14 15:26:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:26:24,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:26:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:26:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:26:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:26:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400425348] [2024-06-14 15:26:37,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400425348] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:26:37,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:26:37,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:26:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123656484] [2024-06-14 15:26:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:26:37,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:26:37,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:26:37,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:26:37,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:26:37,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:26:37,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 203 transitions, 2174 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:37,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:26:37,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:26:37,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:26:39,881 INFO L124 PetriNetUnfolderBase]: 3083/4900 cut-off events. [2024-06-14 15:26:39,881 INFO L125 PetriNetUnfolderBase]: For 260810/260810 co-relation queries the response was YES. [2024-06-14 15:26:39,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33283 conditions, 4900 events. 3083/4900 cut-off events. For 260810/260810 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27733 event pairs, 786 based on Foata normal form. 1/4900 useless extension candidates. Maximal degree in co-relation 33202. Up to 4678 conditions per place. [2024-06-14 15:26:39,924 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 199 selfloop transitions, 14 changer transitions 0/222 dead transitions. [2024-06-14 15:26:39,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 222 transitions, 2692 flow [2024-06-14 15:26:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:26:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:26:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 120 transitions. [2024-06-14 15:26:39,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39867109634551495 [2024-06-14 15:26:39,925 INFO L175 Difference]: Start difference. First operand has 179 places, 203 transitions, 2174 flow. Second operand 7 states and 120 transitions. [2024-06-14 15:26:39,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 222 transitions, 2692 flow [2024-06-14 15:26:40,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 222 transitions, 2624 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-14 15:26:40,123 INFO L231 Difference]: Finished difference. Result has 179 places, 206 transitions, 2198 flow [2024-06-14 15:26:40,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2198, PETRI_PLACES=179, PETRI_TRANSITIONS=206} [2024-06-14 15:26:40,124 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 135 predicate places. [2024-06-14 15:26:40,124 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 206 transitions, 2198 flow [2024-06-14 15:26:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:40,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:26:40,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:26:40,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-14 15:26:40,125 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:26:40,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:26:40,125 INFO L85 PathProgramCache]: Analyzing trace with hash 623949068, now seen corresponding path program 2 times [2024-06-14 15:26:40,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:26:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032257788] [2024-06-14 15:26:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:26:40,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:26:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:26:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:26:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:26:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032257788] [2024-06-14 15:26:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032257788] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:26:54,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:26:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:26:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883805310] [2024-06-14 15:26:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:26:54,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:26:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:26:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:26:54,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:26:54,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:26:54,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 206 transitions, 2198 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:54,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:26:54,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:26:54,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:26:56,403 INFO L124 PetriNetUnfolderBase]: 3088/4907 cut-off events. [2024-06-14 15:26:56,403 INFO L125 PetriNetUnfolderBase]: For 271391/271391 co-relation queries the response was YES. [2024-06-14 15:26:56,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33846 conditions, 4907 events. 3088/4907 cut-off events. For 271391/271391 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27777 event pairs, 787 based on Foata normal form. 1/4907 useless extension candidates. Maximal degree in co-relation 33764. Up to 4669 conditions per place. [2024-06-14 15:26:56,446 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 191 selfloop transitions, 26 changer transitions 0/226 dead transitions. [2024-06-14 15:26:56,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 226 transitions, 2872 flow [2024-06-14 15:26:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:26:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:26:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 122 transitions. [2024-06-14 15:26:56,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053156146179402 [2024-06-14 15:26:56,448 INFO L175 Difference]: Start difference. First operand has 179 places, 206 transitions, 2198 flow. Second operand 7 states and 122 transitions. [2024-06-14 15:26:56,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 226 transitions, 2872 flow [2024-06-14 15:26:56,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 226 transitions, 2802 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-06-14 15:26:56,720 INFO L231 Difference]: Finished difference. Result has 181 places, 212 transitions, 2308 flow [2024-06-14 15:26:56,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2308, PETRI_PLACES=181, PETRI_TRANSITIONS=212} [2024-06-14 15:26:56,721 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 137 predicate places. [2024-06-14 15:26:56,721 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 212 transitions, 2308 flow [2024-06-14 15:26:56,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:26:56,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:26:56,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:26:56,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-14 15:26:56,721 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:26:56,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:26:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash -532002808, now seen corresponding path program 1 times [2024-06-14 15:26:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:26:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511932344] [2024-06-14 15:26:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:26:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:26:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:27:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:27:10,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:27:10,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511932344] [2024-06-14 15:27:10,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511932344] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:27:10,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:27:10,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:27:10,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651281952] [2024-06-14 15:27:10,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:27:10,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:27:10,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:27:10,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:27:10,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:27:10,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:27:10,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 212 transitions, 2308 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:10,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:27:10,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:27:10,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:27:12,279 INFO L124 PetriNetUnfolderBase]: 3220/5041 cut-off events. [2024-06-14 15:27:12,279 INFO L125 PetriNetUnfolderBase]: For 283130/283130 co-relation queries the response was YES. [2024-06-14 15:27:12,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35025 conditions, 5041 events. 3220/5041 cut-off events. For 283130/283130 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27955 event pairs, 825 based on Foata normal form. 1/5041 useless extension candidates. Maximal degree in co-relation 34942. Up to 4920 conditions per place. [2024-06-14 15:27:12,319 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 205 selfloop transitions, 24 changer transitions 0/233 dead transitions. [2024-06-14 15:27:12,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 233 transitions, 2966 flow [2024-06-14 15:27:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:27:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:27:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2024-06-14 15:27:12,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691860465116279 [2024-06-14 15:27:12,320 INFO L175 Difference]: Start difference. First operand has 181 places, 212 transitions, 2308 flow. Second operand 8 states and 127 transitions. [2024-06-14 15:27:12,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 233 transitions, 2966 flow [2024-06-14 15:27:12,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 233 transitions, 2894 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-06-14 15:27:12,571 INFO L231 Difference]: Finished difference. Result has 186 places, 218 transitions, 2368 flow [2024-06-14 15:27:12,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2236, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2368, PETRI_PLACES=186, PETRI_TRANSITIONS=218} [2024-06-14 15:27:12,572 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 142 predicate places. [2024-06-14 15:27:12,572 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 218 transitions, 2368 flow [2024-06-14 15:27:12,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:12,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:27:12,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:27:12,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-14 15:27:12,572 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:27:12,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:27:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1859795174, now seen corresponding path program 2 times [2024-06-14 15:27:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:27:12,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491012437] [2024-06-14 15:27:12,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:27:12,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:27:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:27:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:27:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:27:25,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491012437] [2024-06-14 15:27:25,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491012437] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:27:25,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:27:25,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:27:25,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617365092] [2024-06-14 15:27:25,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:27:25,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:27:25,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:27:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:27:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:27:25,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:27:25,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 218 transitions, 2368 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:25,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:27:25,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:27:25,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:27:27,475 INFO L124 PetriNetUnfolderBase]: 3225/5048 cut-off events. [2024-06-14 15:27:27,475 INFO L125 PetriNetUnfolderBase]: For 294891/294891 co-relation queries the response was YES. [2024-06-14 15:27:27,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35642 conditions, 5048 events. 3225/5048 cut-off events. For 294891/294891 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27948 event pairs, 824 based on Foata normal form. 1/5048 useless extension candidates. Maximal degree in co-relation 35557. Up to 4941 conditions per place. [2024-06-14 15:27:27,521 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 209 selfloop transitions, 20 changer transitions 0/233 dead transitions. [2024-06-14 15:27:27,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 233 transitions, 2990 flow [2024-06-14 15:27:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:27:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:27:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 122 transitions. [2024-06-14 15:27:27,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3546511627906977 [2024-06-14 15:27:27,523 INFO L175 Difference]: Start difference. First operand has 186 places, 218 transitions, 2368 flow. Second operand 8 states and 122 transitions. [2024-06-14 15:27:27,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 233 transitions, 2990 flow [2024-06-14 15:27:27,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 233 transitions, 2936 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-14 15:27:27,823 INFO L231 Difference]: Finished difference. Result has 190 places, 221 transitions, 2402 flow [2024-06-14 15:27:27,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2318, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2402, PETRI_PLACES=190, PETRI_TRANSITIONS=221} [2024-06-14 15:27:27,823 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 146 predicate places. [2024-06-14 15:27:27,823 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 221 transitions, 2402 flow [2024-06-14 15:27:27,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:27,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:27:27,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:27:27,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-14 15:27:27,824 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:27:27,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:27:27,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1361330984, now seen corresponding path program 3 times [2024-06-14 15:27:27,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:27:27,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837707531] [2024-06-14 15:27:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:27:27,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:27:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:27:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:27:40,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:27:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837707531] [2024-06-14 15:27:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837707531] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:27:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:27:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:27:40,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156321989] [2024-06-14 15:27:40,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:27:40,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:27:40,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:27:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:27:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:27:40,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:27:40,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 221 transitions, 2402 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:40,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:27:40,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:27:40,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:27:42,676 INFO L124 PetriNetUnfolderBase]: 3222/5044 cut-off events. [2024-06-14 15:27:42,676 INFO L125 PetriNetUnfolderBase]: For 304551/304551 co-relation queries the response was YES. [2024-06-14 15:27:42,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35810 conditions, 5044 events. 3222/5044 cut-off events. For 304551/304551 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27936 event pairs, 824 based on Foata normal form. 1/5044 useless extension candidates. Maximal degree in co-relation 35723. Up to 4944 conditions per place. [2024-06-14 15:27:42,716 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 213 selfloop transitions, 14 changer transitions 0/231 dead transitions. [2024-06-14 15:27:42,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 231 transitions, 2880 flow [2024-06-14 15:27:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:27:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:27:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 108 transitions. [2024-06-14 15:27:42,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3588039867109635 [2024-06-14 15:27:42,717 INFO L175 Difference]: Start difference. First operand has 190 places, 221 transitions, 2402 flow. Second operand 7 states and 108 transitions. [2024-06-14 15:27:42,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 231 transitions, 2880 flow [2024-06-14 15:27:42,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 231 transitions, 2792 flow, removed 23 selfloop flow, removed 6 redundant places. [2024-06-14 15:27:42,927 INFO L231 Difference]: Finished difference. Result has 191 places, 221 transitions, 2348 flow [2024-06-14 15:27:42,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2314, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2348, PETRI_PLACES=191, PETRI_TRANSITIONS=221} [2024-06-14 15:27:42,927 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 147 predicate places. [2024-06-14 15:27:42,928 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 221 transitions, 2348 flow [2024-06-14 15:27:42,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:42,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:27:42,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:27:42,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-14 15:27:42,928 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:27:42,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:27:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash -354871474, now seen corresponding path program 3 times [2024-06-14 15:27:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:27:42,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958641770] [2024-06-14 15:27:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:27:42,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:27:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:27:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:27:55,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:27:55,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958641770] [2024-06-14 15:27:55,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958641770] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:27:55,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:27:55,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:27:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045984856] [2024-06-14 15:27:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:27:55,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:27:55,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:27:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:27:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:27:56,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-14 15:27:56,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 221 transitions, 2348 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:56,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:27:56,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-14 15:27:56,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:27:57,927 INFO L124 PetriNetUnfolderBase]: 3104/4925 cut-off events. [2024-06-14 15:27:57,927 INFO L125 PetriNetUnfolderBase]: For 314986/314986 co-relation queries the response was YES. [2024-06-14 15:27:57,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35315 conditions, 4925 events. 3104/4925 cut-off events. For 314986/314986 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27796 event pairs, 789 based on Foata normal form. 1/4925 useless extension candidates. Maximal degree in co-relation 35227. Up to 4712 conditions per place. [2024-06-14 15:27:57,976 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 205 selfloop transitions, 14 changer transitions 0/231 dead transitions. [2024-06-14 15:27:57,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 231 transitions, 2810 flow [2024-06-14 15:27:57,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:27:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:27:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2024-06-14 15:27:57,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3787375415282392 [2024-06-14 15:27:57,977 INFO L175 Difference]: Start difference. First operand has 191 places, 221 transitions, 2348 flow. Second operand 7 states and 114 transitions. [2024-06-14 15:27:57,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 231 transitions, 2810 flow [2024-06-14 15:27:58,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 231 transitions, 2732 flow, removed 23 selfloop flow, removed 6 redundant places. [2024-06-14 15:27:58,267 INFO L231 Difference]: Finished difference. Result has 192 places, 221 transitions, 2304 flow [2024-06-14 15:27:58,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2304, PETRI_PLACES=192, PETRI_TRANSITIONS=221} [2024-06-14 15:27:58,267 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 148 predicate places. [2024-06-14 15:27:58,268 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 221 transitions, 2304 flow [2024-06-14 15:27:58,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:27:58,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:27:58,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:27:58,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-14 15:27:58,268 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)] === [2024-06-14 15:27:58,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:27:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash 204009652, now seen corresponding path program 1 times [2024-06-14 15:27:58,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:27:58,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783650293] [2024-06-14 15:27:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:27:58,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:27:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:28:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:28:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:28:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783650293] [2024-06-14 15:28:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783650293] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:28:09,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:28:09,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:28:09,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136482153] [2024-06-14 15:28:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:28:09,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:28:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:28:09,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:28:09,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:28:09,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:28:09,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 221 transitions, 2304 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:09,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:28:09,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:28:09,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:28:12,259 INFO L124 PetriNetUnfolderBase]: 3401/5281 cut-off events. [2024-06-14 15:28:12,259 INFO L125 PetriNetUnfolderBase]: For 386678/386678 co-relation queries the response was YES. [2024-06-14 15:28:12,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39208 conditions, 5281 events. 3401/5281 cut-off events. For 386678/386678 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 28917 event pairs, 665 based on Foata normal form. 12/5292 useless extension candidates. Maximal degree in co-relation 39119. Up to 4965 conditions per place. [2024-06-14 15:28:12,309 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 236 selfloop transitions, 20 changer transitions 0/267 dead transitions. [2024-06-14 15:28:12,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 267 transitions, 2984 flow [2024-06-14 15:28:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:28:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:28:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 171 transitions. [2024-06-14 15:28:12,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39767441860465114 [2024-06-14 15:28:12,310 INFO L175 Difference]: Start difference. First operand has 192 places, 221 transitions, 2304 flow. Second operand 10 states and 171 transitions. [2024-06-14 15:28:12,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 267 transitions, 2984 flow [2024-06-14 15:28:12,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 267 transitions, 2940 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-06-14 15:28:12,651 INFO L231 Difference]: Finished difference. Result has 197 places, 224 transitions, 2371 flow [2024-06-14 15:28:12,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2260, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2371, PETRI_PLACES=197, PETRI_TRANSITIONS=224} [2024-06-14 15:28:12,652 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 153 predicate places. [2024-06-14 15:28:12,652 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 224 transitions, 2371 flow [2024-06-14 15:28:12,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:12,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:28:12,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:28:12,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-14 15:28:12,653 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)] === [2024-06-14 15:28:12,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:28:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash 262217422, now seen corresponding path program 2 times [2024-06-14 15:28:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:28:12,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111144473] [2024-06-14 15:28:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:28:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:28:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:28:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:28:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:28:24,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111144473] [2024-06-14 15:28:24,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111144473] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:28:24,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:28:24,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:28:24,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415780252] [2024-06-14 15:28:24,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:28:24,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:28:24,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:28:24,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:28:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:28:24,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:28:24,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 224 transitions, 2371 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:24,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:28:24,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:28:24,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:28:27,163 INFO L124 PetriNetUnfolderBase]: 3381/5249 cut-off events. [2024-06-14 15:28:27,164 INFO L125 PetriNetUnfolderBase]: For 389864/389864 co-relation queries the response was YES. [2024-06-14 15:28:27,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39062 conditions, 5249 events. 3381/5249 cut-off events. For 389864/389864 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 28875 event pairs, 807 based on Foata normal form. 12/5260 useless extension candidates. Maximal degree in co-relation 38971. Up to 4794 conditions per place. [2024-06-14 15:28:27,211 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 215 selfloop transitions, 43 changer transitions 0/269 dead transitions. [2024-06-14 15:28:27,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 269 transitions, 3011 flow [2024-06-14 15:28:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:28:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:28:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-06-14 15:28:27,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069767441860465 [2024-06-14 15:28:27,214 INFO L175 Difference]: Start difference. First operand has 197 places, 224 transitions, 2371 flow. Second operand 10 states and 175 transitions. [2024-06-14 15:28:27,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 269 transitions, 3011 flow [2024-06-14 15:28:27,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 269 transitions, 2911 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-06-14 15:28:27,567 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 2389 flow [2024-06-14 15:28:27,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2271, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2389, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2024-06-14 15:28:27,567 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 157 predicate places. [2024-06-14 15:28:27,567 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 2389 flow [2024-06-14 15:28:27,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:27,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:28:27,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:28:27,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-14 15:28:27,568 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)] === [2024-06-14 15:28:27,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:28:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash -665673440, now seen corresponding path program 3 times [2024-06-14 15:28:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:28:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731255771] [2024-06-14 15:28:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:28:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:28:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:28:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:28:39,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:28:39,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731255771] [2024-06-14 15:28:39,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731255771] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:28:39,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:28:39,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:28:39,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672488531] [2024-06-14 15:28:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:28:39,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:28:39,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:28:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:28:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:28:39,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:28:39,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 2389 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:39,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:28:39,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:28:39,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:28:41,634 INFO L124 PetriNetUnfolderBase]: 3422/5320 cut-off events. [2024-06-14 15:28:41,634 INFO L125 PetriNetUnfolderBase]: For 406851/406851 co-relation queries the response was YES. [2024-06-14 15:28:41,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39629 conditions, 5320 events. 3422/5320 cut-off events. For 406851/406851 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 29383 event pairs, 817 based on Foata normal form. 12/5331 useless extension candidates. Maximal degree in co-relation 39536. Up to 4788 conditions per place. [2024-06-14 15:28:41,683 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 214 selfloop transitions, 48 changer transitions 0/273 dead transitions. [2024-06-14 15:28:41,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 273 transitions, 3095 flow [2024-06-14 15:28:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:28:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:28:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-06-14 15:28:41,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069767441860465 [2024-06-14 15:28:41,686 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 2389 flow. Second operand 10 states and 175 transitions. [2024-06-14 15:28:41,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 273 transitions, 3095 flow [2024-06-14 15:28:41,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 273 transitions, 2993 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-06-14 15:28:41,994 INFO L231 Difference]: Finished difference. Result has 204 places, 230 transitions, 2480 flow [2024-06-14 15:28:41,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2287, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2480, PETRI_PLACES=204, PETRI_TRANSITIONS=230} [2024-06-14 15:28:41,994 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 160 predicate places. [2024-06-14 15:28:41,994 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 230 transitions, 2480 flow [2024-06-14 15:28:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:28:41,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:28:41,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:28:41,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-14 15:28:41,995 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:28:41,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:28:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash -523312088, now seen corresponding path program 1 times [2024-06-14 15:28:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:28:41,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016949949] [2024-06-14 15:28:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:28:41,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:28:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:29:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:29:00,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:29:00,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016949949] [2024-06-14 15:29:00,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016949949] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:29:00,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:29:00,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:29:00,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792173286] [2024-06-14 15:29:00,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:29:00,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:29:00,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:29:00,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:29:00,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:29:00,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2024-06-14 15:29:00,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 230 transitions, 2480 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:00,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:29:00,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2024-06-14 15:29:00,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:29:02,745 INFO L124 PetriNetUnfolderBase]: 3540/5442 cut-off events. [2024-06-14 15:29:02,745 INFO L125 PetriNetUnfolderBase]: For 412662/412662 co-relation queries the response was YES. [2024-06-14 15:29:02,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40733 conditions, 5442 events. 3540/5442 cut-off events. For 412662/412662 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 29535 event pairs, 875 based on Foata normal form. 2/5443 useless extension candidates. Maximal degree in co-relation 40638. Up to 5314 conditions per place. [2024-06-14 15:29:02,794 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 217 selfloop transitions, 47 changer transitions 0/267 dead transitions. [2024-06-14 15:29:02,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 267 transitions, 3276 flow [2024-06-14 15:29:02,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 15:29:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 15:29:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 166 transitions. [2024-06-14 15:29:02,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35095137420718814 [2024-06-14 15:29:02,795 INFO L175 Difference]: Start difference. First operand has 204 places, 230 transitions, 2480 flow. Second operand 11 states and 166 transitions. [2024-06-14 15:29:02,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 267 transitions, 3276 flow [2024-06-14 15:29:03,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 267 transitions, 3134 flow, removed 30 selfloop flow, removed 7 redundant places. [2024-06-14 15:29:03,078 INFO L231 Difference]: Finished difference. Result has 208 places, 236 transitions, 2524 flow [2024-06-14 15:29:03,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2338, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2524, PETRI_PLACES=208, PETRI_TRANSITIONS=236} [2024-06-14 15:29:03,079 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 164 predicate places. [2024-06-14 15:29:03,079 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 236 transitions, 2524 flow [2024-06-14 15:29:03,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:03,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:29:03,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:29:03,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-14 15:29:03,079 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:29:03,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:29:03,080 INFO L85 PathProgramCache]: Analyzing trace with hash 477040083, now seen corresponding path program 1 times [2024-06-14 15:29:03,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:29:03,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206442128] [2024-06-14 15:29:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:29:03,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:29:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:29:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:29:15,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:29:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206442128] [2024-06-14 15:29:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206442128] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:29:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:29:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:29:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878062420] [2024-06-14 15:29:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:29:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:29:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:29:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:29:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:29:15,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:29:15,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 236 transitions, 2524 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:15,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:29:15,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:29:15,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:29:17,868 INFO L124 PetriNetUnfolderBase]: 3457/5364 cut-off events. [2024-06-14 15:29:17,868 INFO L125 PetriNetUnfolderBase]: For 425818/425818 co-relation queries the response was YES. [2024-06-14 15:29:17,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40626 conditions, 5364 events. 3457/5364 cut-off events. For 425818/425818 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 29546 event pairs, 848 based on Foata normal form. 1/5364 useless extension candidates. Maximal degree in co-relation 40531. Up to 5192 conditions per place. [2024-06-14 15:29:17,919 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 225 selfloop transitions, 24 changer transitions 0/262 dead transitions. [2024-06-14 15:29:17,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 262 transitions, 3268 flow [2024-06-14 15:29:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:29:17,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:29:17,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2024-06-14 15:29:17,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4019933554817276 [2024-06-14 15:29:17,920 INFO L175 Difference]: Start difference. First operand has 208 places, 236 transitions, 2524 flow. Second operand 7 states and 121 transitions. [2024-06-14 15:29:17,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 262 transitions, 3268 flow [2024-06-14 15:29:18,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 262 transitions, 3167 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-06-14 15:29:18,273 INFO L231 Difference]: Finished difference. Result has 208 places, 242 transitions, 2571 flow [2024-06-14 15:29:18,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2423, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2571, PETRI_PLACES=208, PETRI_TRANSITIONS=242} [2024-06-14 15:29:18,274 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 164 predicate places. [2024-06-14 15:29:18,274 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 242 transitions, 2571 flow [2024-06-14 15:29:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:18,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:29:18,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:29:18,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-14 15:29:18,274 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:29:18,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:29:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1507267667, now seen corresponding path program 2 times [2024-06-14 15:29:18,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:29:18,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891741424] [2024-06-14 15:29:18,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:29:18,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:29:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:29:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:29:30,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:29:30,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891741424] [2024-06-14 15:29:30,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891741424] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:29:30,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:29:30,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:29:30,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100631572] [2024-06-14 15:29:30,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:29:30,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:29:30,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:29:30,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:29:30,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:29:30,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-14 15:29:30,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 242 transitions, 2571 flow. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:30,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:29:30,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-14 15:29:30,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:29:33,039 INFO L124 PetriNetUnfolderBase]: 3462/5371 cut-off events. [2024-06-14 15:29:33,039 INFO L125 PetriNetUnfolderBase]: For 441891/441891 co-relation queries the response was YES. [2024-06-14 15:29:33,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41232 conditions, 5371 events. 3462/5371 cut-off events. For 441891/441891 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 29567 event pairs, 848 based on Foata normal form. 1/5371 useless extension candidates. Maximal degree in co-relation 41135. Up to 5214 conditions per place. [2024-06-14 15:29:33,092 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 229 selfloop transitions, 19 changer transitions 0/261 dead transitions. [2024-06-14 15:29:33,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 261 transitions, 3157 flow [2024-06-14 15:29:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:29:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:29:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2024-06-14 15:29:33,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3853820598006645 [2024-06-14 15:29:33,093 INFO L175 Difference]: Start difference. First operand has 208 places, 242 transitions, 2571 flow. Second operand 7 states and 116 transitions. [2024-06-14 15:29:33,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 261 transitions, 3157 flow [2024-06-14 15:29:33,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 261 transitions, 3057 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-06-14 15:29:33,565 INFO L231 Difference]: Finished difference. Result has 212 places, 245 transitions, 2571 flow [2024-06-14 15:29:33,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2571, PETRI_PLACES=212, PETRI_TRANSITIONS=245} [2024-06-14 15:29:33,565 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 168 predicate places. [2024-06-14 15:29:33,566 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 245 transitions, 2571 flow [2024-06-14 15:29:33,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:33,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:29:33,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:29:33,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-14 15:29:33,566 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:29:33,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:29:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash -514057658, now seen corresponding path program 2 times [2024-06-14 15:29:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:29:33,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301348752] [2024-06-14 15:29:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:29:33,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:29:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:29:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:29:50,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:29:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301348752] [2024-06-14 15:29:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301348752] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:29:50,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:29:50,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:29:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008457735] [2024-06-14 15:29:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:29:50,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:29:50,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:29:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:29:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:29:50,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 43 [2024-06-14 15:29:50,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 245 transitions, 2571 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:29:50,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:29:50,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 43 [2024-06-14 15:29:50,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15