./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 15:56:29,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 15:56:29,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 15:56:29,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 15:56:29,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 15:56:29,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 15:56:29,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 15:56:29,094 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 15:56:29,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 15:56:29,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 15:56:29,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 15:56:29,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 15:56:29,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 15:56:29,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 15:56:29,100 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 15:56:29,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 15:56:29,100 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 15:56:29,101 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 15:56:29,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 15:56:29,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 15:56:29,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 15:56:29,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 15:56:29,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 15:56:29,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 15:56:29,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 15:56:29,102 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 15:56:29,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 15:56:29,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 15:56:29,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 15:56:29,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 15:56:29,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 15:56:29,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 15:56:29,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:56:29,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 15:56:29,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 15:56:29,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 15:56:29,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 15:56:29,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 15:56:29,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 15:56:29,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 15:56:29,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 15:56:29,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 15:56:29,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 15:56:29,340 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 15:56:29,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-14 15:56:30,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 15:56:30,555 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 15:56:30,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-14 15:56:30,573 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571489f6e/73880ab8908b48f19db6f3e7bb2ed7c8/FLAGe5d54a9a7 [2024-06-14 15:56:30,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571489f6e/73880ab8908b48f19db6f3e7bb2ed7c8 [2024-06-14 15:56:30,589 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 15:56:30,589 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 15:56:30,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.yml/witness.yml [2024-06-14 15:56:30,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 15:56:30,766 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 15:56:30,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 15:56:30,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 15:56:30,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 15:56:30,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:56:30" (1/2) ... [2024-06-14 15:56:30,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dc53ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:56:30, skipping insertion in model container [2024-06-14 15:56:30,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:56:30" (1/2) ... [2024-06-14 15:56:30,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f9639c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:56:30, skipping insertion in model container [2024-06-14 15:56:30,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:56:30" (2/2) ... [2024-06-14 15:56:30,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dc53ce and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:56:30, skipping insertion in model container [2024-06-14 15:56:30,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:56:30" (2/2) ... [2024-06-14 15:56:30,774 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 15:56:30,849 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 15:56:30,851 INFO L97 edCorrectnessWitness]: Location invariant before [L837-L837] ((((((((((((((((((! multithreaded || x$r_buff1_thd0 == (_Bool)0) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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 )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )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_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$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 )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 )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (2LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (2LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (2LL + (long long )x) - (long long )z >= 0LL) && (2LL + (long long )x$flush_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$mem_tmp) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$read_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff0) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff1) - (long long )z >= 0LL) && (2LL + (long long )y) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice2) - (long long )z >= 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 )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$read_delayed) - (long long )z >= 0LL) && (3LL - (long long )weak$$choice0) - (long long )z >= 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$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$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$read_delayed >= 0LL) && (long long )main$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_thd1 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EAX <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 2) && z <= 127) && 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) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || x$read_delayed_var == 0) [2024-06-14 15:56:30,851 INFO L97 edCorrectnessWitness]: Location invariant before [L836-L836] ((((((((((((((((((! multithreaded || x$r_buff1_thd0 == (_Bool)0) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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 )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x >= 0LL) && (long long )__unbuffered_cnt + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_cnt + (long long )y >= 0LL) && (long long )__unbuffered_cnt + (long long )z >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_cnt + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )weak$$choice2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x >= 0LL) && (long long )main$tmp_guard1 + (long long )x$flush_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$mem_tmp >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff0_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd1 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd2 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$r_buff1_thd3 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$read_delayed >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )x$w_buff1 >= 0LL) && (long long )main$tmp_guard1 + (long long )y >= 0LL) && (long long )main$tmp_guard1 + (long long )z >= 0LL) && (long long )main$tmp_guard1 + (long long )weak$$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$$choice2 + (long long )z >= 0LL) && (1LL + (long long )__unbuffered_cnt) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (2LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (2LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (2LL + (long long )x) - (long long )z >= 0LL) && (2LL + (long long )x$flush_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$mem_tmp) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$read_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff0) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff1) - (long long )z >= 0LL) && (2LL + (long long )y) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice2) - (long long )z >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff0_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd0 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff0_thd3) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd1 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd0) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$r_buff1_thd3 >= 0LL) && (0LL - (long long )x$r_buff1_thd1) - (long long )x$read_delayed >= 0LL) && (0LL - (long long )x$r_buff1_thd3) - (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$read_delayed) - (long long )z >= 0LL) && (3LL - (long long )weak$$choice0) - (long long )z >= 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_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_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 )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_thd1 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EAX <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 2) && z <= 127) && 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$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || x$read_delayed_var == 0) [2024-06-14 15:56:30,852 INFO L97 edCorrectnessWitness]: Location invariant before [L834-L834] ((((((((((((((((((! multithreaded || x$r_buff1_thd0 == (_Bool)0) && (! multithreaded || x$read_delayed == (_Bool)0)) && (! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((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 )weak$$choice0) + (long long )x >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$flush_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$mem_tmp >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd2 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$read_delayed >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff0 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )y >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )z >= 0LL) && (1LL - (long long )weak$$choice0) + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p0_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_cnt + (long long )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_p0_EAX + (long long )__unbuffered_p2_EAX >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$flush_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$mem_tmp >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd2 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )x$w_buff1 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )y >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )weak$$choice2 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )main$tmp_guard1 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )x$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 )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 )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p0_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )__unbuffered_p2_EAX) - (long long )weak$$choice0 >= 0LL) && (1LL + (long long )main$tmp_guard1) - (long long )weak$$choice0 >= 0LL) && (2LL + (long long )__unbuffered_cnt) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p0_EAX) - (long long )z >= 0LL) && (2LL + (long long )__unbuffered_p2_EAX) - (long long )z >= 0LL) && (2LL + (long long )main$tmp_guard1) - (long long )z >= 0LL) && (2LL + (long long )x) - (long long )z >= 0LL) && (2LL + (long long )x$flush_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$mem_tmp) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd2) - (long long )z >= 0LL) && (2LL + (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL + (long long )x$read_delayed) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff0) - (long long )z >= 0LL) && (2LL + (long long )x$w_buff1) - (long long )z >= 0LL) && (2LL + (long long )y) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice0) - (long long )z >= 0LL) && (2LL + (long long )weak$$choice2) - (long long )z >= 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 )weak$$choice0) - (long long )x$r_buff0_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff0_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd0 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd1 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$r_buff1_thd3 >= 0LL) && (1LL - (long long )weak$$choice0) - (long long )x$read_delayed >= 0LL) && (2LL - (long long )x$r_buff0_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff0_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd0) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd1) - (long long )z >= 0LL) && (2LL - (long long )x$r_buff1_thd3) - (long long )z >= 0LL) && (2LL - (long long )x$read_delayed) - (long long )z >= 0LL) && (3LL - (long long )weak$$choice0) - (long long )z >= 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$read_delayed >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff0_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd0 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd1 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$r_buff1_thd3 >= 0LL) && (long long )__unbuffered_p0_EAX - (long long )x$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$read_delayed >= 0LL) && (long long )main$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_thd1 == (_Bool)0)) && (! multithreaded || ((((((((((((((((((((((((((((((((((0 <= __unbuffered_cnt && 0 <= __unbuffered_p0_EAX) && 0 <= __unbuffered_p2_EAX) && 0 <= x) && 0 <= x$mem_tmp) && 0 <= x$w_buff0) && 0 <= x$w_buff1) && 0 <= y) && 0 <= z) && __unbuffered_p0_EAX <= 1) && __unbuffered_p2_EAX <= 1) && x <= 1) && x$mem_tmp <= 1) && x$w_buff0 <= 1) && x$w_buff1 <= 1) && y <= 1) && z <= 2) && z <= 127) && 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$read_delayed_var == 0) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)) && (x == 0 || x == 1)) && (x$mem_tmp == 0 || x$mem_tmp == 1)) && (x$w_buff0 == 0 || x$w_buff0 == 1)) && (x$w_buff1 == 0 || x$w_buff1 == 1)) && (y == 0 || y == 1)) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd1 == (_Bool)0)) && (! multithreaded || x$r_buff0_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))) && (! multithreaded || x$r_buff0_thd0 == (_Bool)0)) && (! multithreaded || ((0 <= x$w_buff0 && x$w_buff0 <= 1) && (x$w_buff0 == 0 || x$w_buff0 == 1)))) && (! multithreaded || ((0 <= x$mem_tmp && x$mem_tmp <= 1) && (x$mem_tmp == 0 || x$mem_tmp == 1)))) && (! multithreaded || ((0 <= x$w_buff1 && x$w_buff1 <= 1) && (x$w_buff1 == 0 || x$w_buff1 == 1)))) && (! multithreaded || (((0 <= z && z <= 2) && z <= 127) && ((z == 0 || z == 1) || z == 2)))) && (! multithreaded || x$r_buff1_thd3 == (_Bool)0)) && (! multithreaded || ((0 <= __unbuffered_p2_EAX && __unbuffered_p2_EAX <= 1) && (__unbuffered_p2_EAX == 0 || __unbuffered_p2_EAX == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || x$read_delayed_var == 0) [2024-06-14 15:56:30,852 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 15:56:30,853 INFO L106 edCorrectnessWitness]: ghost_update [L832-L832] multithreaded = 1; [2024-06-14 15:56:30,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 15:56:31,148 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:56:31,160 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 15:56:31,501 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 15:56:31,535 INFO L206 MainTranslator]: Completed translation [2024-06-14 15:56:31,536 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 03:56:31 WrapperNode [2024-06-14 15:56:31,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 15:56:31,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 15:56:31,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 15:56:31,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 15:56:31,542 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,576 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,740 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 125 [2024-06-14 15:56:31,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 15:56:31,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 15:56:31,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 15:56:31,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 15:56:31,750 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,750 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,777 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,827 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 15:56:31,827 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,827 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,868 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,870 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,891 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,896 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 15:56:31,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 15:56:31,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 15:56:31,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 15:56:31,932 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 03:56:31" (1/1) ... [2024-06-14 15:56:31,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 15:56:31,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 15:56:31,956 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 15:56:31,961 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 15:56:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 15:56:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 15:56:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-14 15:56:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-14 15:56:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-14 15:56:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-14 15:56:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-14 15:56:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-14 15:56:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 15:56:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 15:56:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 15:56:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 15:56:31,989 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 15:56:32,103 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 15:56:32,104 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 15:56:33,285 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 15:56:33,285 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 15:56:33,500 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 15:56:33,500 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 15:56:33,501 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:56:33 BoogieIcfgContainer [2024-06-14 15:56:33,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 15:56:33,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 15:56:33,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 15:56:33,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 15:56:33,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 03:56:30" (1/4) ... [2024-06-14 15:56:33,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524a1557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:56:33, skipping insertion in model container [2024-06-14 15:56:33,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 03:56:30" (2/4) ... [2024-06-14 15:56:33,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524a1557 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 03:56:33, skipping insertion in model container [2024-06-14 15:56:33,507 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 03:56:31" (3/4) ... [2024-06-14 15:56:33,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524a1557 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 03:56:33, skipping insertion in model container [2024-06-14 15:56:33,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:56:33" (4/4) ... [2024-06-14 15:56:33,509 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-14 15:56:33,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 15:56:33,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 15:56:33,523 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 15:56:33,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-14 15:56:33,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2024-06-14 15:56:33,694 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-06-14 15:56:33,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:56:33,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-14 15:56:33,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2024-06-14 15:56:33,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-14 15:56:33,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 15:56:33,734 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;@19d21755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 15:56:33,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 15:56:33,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 15:56:33,756 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 15:56:33,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 15:56:33,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:56:33,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 15:56:33,758 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 15:56:33,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:56:33,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1642982905, now seen corresponding path program 1 times [2024-06-14 15:56:33,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:56:33,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686409612] [2024-06-14 15:56:33,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:56:33,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:56:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:56:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:56:39,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:56:39,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686409612] [2024-06-14 15:56:39,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686409612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:56:39,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:56:39,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 15:56:39,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353592456] [2024-06-14 15:56:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:56:39,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 15:56:39,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:56:39,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 15:56:39,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 15:56:39,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-14 15:56:39,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:56:39,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:56:39,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-14 15:56:39,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:56:40,115 INFO L124 PetriNetUnfolderBase]: 1152/1762 cut-off events. [2024-06-14 15:56:40,116 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-06-14 15:56:40,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3581 conditions, 1762 events. 1152/1762 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8442 event pairs, 785 based on Foata normal form. 1/1726 useless extension candidates. Maximal degree in co-relation 3566. Up to 1732 conditions per place. [2024-06-14 15:56:40,128 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 33 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2024-06-14 15:56:40,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 175 flow [2024-06-14 15:56:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 15:56:40,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 15:56:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-06-14 15:56:40,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-06-14 15:56:40,138 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 76 transitions. [2024-06-14 15:56:40,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 175 flow [2024-06-14 15:56:40,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 15:56:40,142 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 102 flow [2024-06-14 15:56:40,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-06-14 15:56:40,146 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-06-14 15:56:40,149 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 102 flow [2024-06-14 15:56:40,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:56:40,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:56:40,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:56:40,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 15:56:40,150 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 15:56:40,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:56:40,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1641423846, now seen corresponding path program 1 times [2024-06-14 15:56:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:56:40,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593851004] [2024-06-14 15:56:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:56:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:56:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:56:43,684 INFO 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 15:56:43,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:56:43,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593851004] [2024-06-14 15:56:43,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593851004] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:56:43,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:56:43,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 15:56:43,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575639264] [2024-06-14 15:56:43,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:56:43,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 15:56:43,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:56:43,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 15:56:43,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 15:56:43,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-14 15:56:43,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 15:56:43,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:56:43,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-14 15:56:43,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:56:44,435 INFO L124 PetriNetUnfolderBase]: 1160/1779 cut-off events. [2024-06-14 15:56:44,436 INFO L125 PetriNetUnfolderBase]: For 341/349 co-relation queries the response was YES. [2024-06-14 15:56:44,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4103 conditions, 1779 events. 1160/1779 cut-off events. For 341/349 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8569 event pairs, 662 based on Foata normal form. 8/1785 useless extension candidates. Maximal degree in co-relation 4088. Up to 1699 conditions per place. [2024-06-14 15:56:44,444 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 44 selfloop transitions, 11 changer transitions 0/61 dead transitions. [2024-06-14 15:56:44,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 280 flow [2024-06-14 15:56:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 15:56:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 15:56:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-06-14 15:56:44,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-06-14 15:56:44,446 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 102 flow. Second operand 4 states and 104 transitions. [2024-06-14 15:56:44,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 280 flow [2024-06-14 15:56:44,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 15:56:44,448 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 174 flow [2024-06-14 15:56:44,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-06-14 15:56:44,449 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 4 predicate places. [2024-06-14 15:56:44,449 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 174 flow [2024-06-14 15:56:44,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 15:56:44,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:56:44,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:56:44,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 15:56:44,450 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 15:56:44,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:56:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1155350981, now seen corresponding path program 1 times [2024-06-14 15:56:44,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:56:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728118323] [2024-06-14 15:56:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:56:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:56:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:56:48,905 INFO 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 15:56:48,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:56:48,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728118323] [2024-06-14 15:56:48,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728118323] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:56:48,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:56:48,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 15:56:48,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516119706] [2024-06-14 15:56:48,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:56:48,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 15:56:48,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:56:48,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 15:56:48,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 15:56:49,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-14 15:56:49,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 15:56:49,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:56:49,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-14 15:56:49,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:56:49,841 INFO L124 PetriNetUnfolderBase]: 1168/1796 cut-off events. [2024-06-14 15:56:49,841 INFO L125 PetriNetUnfolderBase]: For 1205/1223 co-relation queries the response was YES. [2024-06-14 15:56:49,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4886 conditions, 1796 events. 1168/1796 cut-off events. For 1205/1223 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8808 event pairs, 538 based on Foata normal form. 11/1805 useless extension candidates. Maximal degree in co-relation 4868. Up to 1669 conditions per place. [2024-06-14 15:56:49,851 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 53 selfloop transitions, 17 changer transitions 0/76 dead transitions. [2024-06-14 15:56:49,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 76 transitions, 410 flow [2024-06-14 15:56:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:56:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:56:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-06-14 15:56:49,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-06-14 15:56:49,855 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 174 flow. Second operand 5 states and 129 transitions. [2024-06-14 15:56:49,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 76 transitions, 410 flow [2024-06-14 15:56:49,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 76 transitions, 406 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-06-14 15:56:49,858 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 253 flow [2024-06-14 15:56:49,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2024-06-14 15:56:49,858 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-14 15:56:49,858 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 253 flow [2024-06-14 15:56:49,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 15:56:49,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:56:49,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:56:49,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 15:56:49,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:56:49,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:56:49,860 INFO L85 PathProgramCache]: Analyzing trace with hash 929851592, now seen corresponding path program 1 times [2024-06-14 15:56:49,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:56:49,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262722449] [2024-06-14 15:56:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:56:49,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:56:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:56:57,303 INFO 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 15:56:57,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:56:57,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262722449] [2024-06-14 15:56:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262722449] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:56:57,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:56:57,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:56:57,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357746969] [2024-06-14 15:56:57,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:56:57,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:56:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:56:57,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:56:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:56:57,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 15:56:57,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:56:57,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:56:57,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 15:56:57,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:56:58,166 INFO L124 PetriNetUnfolderBase]: 1163/1789 cut-off events. [2024-06-14 15:56:58,166 INFO L125 PetriNetUnfolderBase]: For 2209/2225 co-relation queries the response was YES. [2024-06-14 15:56:58,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5486 conditions, 1789 events. 1163/1789 cut-off events. For 2209/2225 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8604 event pairs, 526 based on Foata normal form. 8/1795 useless extension candidates. Maximal degree in co-relation 5465. Up to 1738 conditions per place. [2024-06-14 15:56:58,176 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 51 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2024-06-14 15:56:58,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 65 transitions, 415 flow [2024-06-14 15:56:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 15:56:58,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 15:56:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2024-06-14 15:56:58,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2024-06-14 15:56:58,178 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 253 flow. Second operand 5 states and 101 transitions. [2024-06-14 15:56:58,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 65 transitions, 415 flow [2024-06-14 15:56:58,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 65 transitions, 399 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-06-14 15:56:58,181 INFO L231 Difference]: Finished difference. Result has 56 places, 54 transitions, 283 flow [2024-06-14 15:56:58,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2024-06-14 15:56:58,182 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2024-06-14 15:56:58,182 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 283 flow [2024-06-14 15:56:58,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:56:58,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:56:58,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:56:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 15:56:58,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:56:58,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:56:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2104202332, now seen corresponding path program 1 times [2024-06-14 15:56:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:56:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094716874] [2024-06-14 15:56:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:56:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:56:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:02,544 INFO 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 15:57:02,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094716874] [2024-06-14 15:57:02,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094716874] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:02,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:02,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 15:57:02,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180779801] [2024-06-14 15:57:02,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:02,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 15:57:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 15:57:02,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 15:57:02,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-06-14 15:57:02,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 54 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:02,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:02,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-06-14 15:57:02,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:03,495 INFO L124 PetriNetUnfolderBase]: 1203/1853 cut-off events. [2024-06-14 15:57:03,496 INFO L125 PetriNetUnfolderBase]: For 3392/3416 co-relation queries the response was YES. [2024-06-14 15:57:03,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6112 conditions, 1853 events. 1203/1853 cut-off events. For 3392/3416 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8982 event pairs, 389 based on Foata normal form. 25/1876 useless extension candidates. Maximal degree in co-relation 6087. Up to 1638 conditions per place. [2024-06-14 15:57:03,510 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 64 selfloop transitions, 19 changer transitions 0/89 dead transitions. [2024-06-14 15:57:03,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 89 transitions, 555 flow [2024-06-14 15:57:03,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:57:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:57:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-06-14 15:57:03,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5992063492063492 [2024-06-14 15:57:03,513 INFO L175 Difference]: Start difference. First operand has 56 places, 54 transitions, 283 flow. Second operand 6 states and 151 transitions. [2024-06-14 15:57:03,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 89 transitions, 555 flow [2024-06-14 15:57:03,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 89 transitions, 533 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-06-14 15:57:03,519 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 321 flow [2024-06-14 15:57:03,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-06-14 15:57:03,521 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2024-06-14 15:57:03,521 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 321 flow [2024-06-14 15:57:03,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:03,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:03,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:03,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 15:57:03,526 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 15:57:03,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1274225805, now seen corresponding path program 1 times [2024-06-14 15:57:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:03,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161825173] [2024-06-14 15:57:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:03,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:10,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:57:10,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:10,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161825173] [2024-06-14 15:57:10,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161825173] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:10,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:10,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:57:10,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180101361] [2024-06-14 15:57:10,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:10,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:57:10,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:10,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:57:10,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:57:10,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:57:10,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:10,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:10,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:57:10,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:11,839 INFO L124 PetriNetUnfolderBase]: 1398/2137 cut-off events. [2024-06-14 15:57:11,840 INFO L125 PetriNetUnfolderBase]: For 5042/5042 co-relation queries the response was YES. [2024-06-14 15:57:11,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7397 conditions, 2137 events. 1398/2137 cut-off events. For 5042/5042 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 10540 event pairs, 524 based on Foata normal form. 3/2139 useless extension candidates. Maximal degree in co-relation 7372. Up to 2065 conditions per place. [2024-06-14 15:57:11,857 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 61 selfloop transitions, 13 changer transitions 0/79 dead transitions. [2024-06-14 15:57:11,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 547 flow [2024-06-14 15:57:11,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:57:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:57:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-06-14 15:57:11,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2024-06-14 15:57:11,859 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 321 flow. Second operand 6 states and 116 transitions. [2024-06-14 15:57:11,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 547 flow [2024-06-14 15:57:11,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 503 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-06-14 15:57:11,867 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 371 flow [2024-06-14 15:57:11,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-06-14 15:57:11,868 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-06-14 15:57:11,868 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 371 flow [2024-06-14 15:57:11,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:11,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:11,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:11,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 15:57:11,869 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 15:57:11,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -846538953, now seen corresponding path program 1 times [2024-06-14 15:57:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:11,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170411796] [2024-06-14 15:57:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:11,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:57:18,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:18,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170411796] [2024-06-14 15:57:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170411796] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:18,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:57:18,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447971038] [2024-06-14 15:57:18,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:18,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:57:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:18,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:57:18,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:57:18,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 15:57:18,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 371 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:18,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:18,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 15:57:18,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:19,398 INFO L124 PetriNetUnfolderBase]: 1385/2127 cut-off events. [2024-06-14 15:57:19,398 INFO L125 PetriNetUnfolderBase]: For 7728/7766 co-relation queries the response was YES. [2024-06-14 15:57:19,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8053 conditions, 2127 events. 1385/2127 cut-off events. For 7728/7766 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10572 event pairs, 528 based on Foata normal form. 13/2101 useless extension candidates. Maximal degree in co-relation 8025. Up to 1997 conditions per place. [2024-06-14 15:57:19,411 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 70 selfloop transitions, 17 changer transitions 0/95 dead transitions. [2024-06-14 15:57:19,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 677 flow [2024-06-14 15:57:19,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:57:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:57:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2024-06-14 15:57:19,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2024-06-14 15:57:19,413 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 371 flow. Second operand 7 states and 141 transitions. [2024-06-14 15:57:19,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 677 flow [2024-06-14 15:57:19,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 95 transitions, 645 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-14 15:57:19,417 INFO L231 Difference]: Finished difference. Result has 67 places, 74 transitions, 484 flow [2024-06-14 15:57:19,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=484, PETRI_PLACES=67, PETRI_TRANSITIONS=74} [2024-06-14 15:57:19,418 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2024-06-14 15:57:19,418 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 74 transitions, 484 flow [2024-06-14 15:57:19,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:19,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:19,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:19,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 15:57:19,419 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 15:57:19,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash -846301803, now seen corresponding path program 2 times [2024-06-14 15:57:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836545211] [2024-06-14 15:57:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:19,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:26,665 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 15:57:26,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:26,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836545211] [2024-06-14 15:57:26,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836545211] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:26,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:26,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 15:57:26,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901053089] [2024-06-14 15:57:26,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:26,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 15:57:26,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:26,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 15:57:26,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-14 15:57:26,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 15:57:26,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 74 transitions, 484 flow. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:26,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:26,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 15:57:26,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:27,762 INFO L124 PetriNetUnfolderBase]: 1463/2265 cut-off events. [2024-06-14 15:57:27,762 INFO L125 PetriNetUnfolderBase]: For 10413/10457 co-relation queries the response was YES. [2024-06-14 15:57:27,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9428 conditions, 2265 events. 1463/2265 cut-off events. For 10413/10457 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11483 event pairs, 521 based on Foata normal form. 19/2243 useless extension candidates. Maximal degree in co-relation 9397. Up to 1985 conditions per place. [2024-06-14 15:57:27,774 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 79 selfloop transitions, 25 changer transitions 0/112 dead transitions. [2024-06-14 15:57:27,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 112 transitions, 898 flow [2024-06-14 15:57:27,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:57:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:57:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-06-14 15:57:27,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5136054421768708 [2024-06-14 15:57:27,778 INFO L175 Difference]: Start difference. First operand has 67 places, 74 transitions, 484 flow. Second operand 7 states and 151 transitions. [2024-06-14 15:57:27,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 112 transitions, 898 flow [2024-06-14 15:57:27,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 112 transitions, 863 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-06-14 15:57:27,784 INFO L231 Difference]: Finished difference. Result has 72 places, 82 transitions, 596 flow [2024-06-14 15:57:27,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=596, PETRI_PLACES=72, PETRI_TRANSITIONS=82} [2024-06-14 15:57:27,784 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2024-06-14 15:57:27,784 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 82 transitions, 596 flow [2024-06-14 15:57:27,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:27,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:27,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:27,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 15:57:27,785 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 15:57:27,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash -846292875, now seen corresponding path program 1 times [2024-06-14 15:57:27,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:27,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536353893] [2024-06-14 15:57:27,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:27,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:35,674 INFO 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 15:57:35,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:35,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536353893] [2024-06-14 15:57:35,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536353893] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:35,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:35,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:57:35,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171992786] [2024-06-14 15:57:35,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:35,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:57:35,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:35,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:57:35,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:57:35,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:57:35,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 82 transitions, 596 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:35,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:35,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:57:35,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:36,738 INFO L124 PetriNetUnfolderBase]: 1520/2340 cut-off events. [2024-06-14 15:57:36,738 INFO L125 PetriNetUnfolderBase]: For 11639/11639 co-relation queries the response was YES. [2024-06-14 15:57:36,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10359 conditions, 2340 events. 1520/2340 cut-off events. For 11639/11639 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11709 event pairs, 496 based on Foata normal form. 3/2342 useless extension candidates. Maximal degree in co-relation 10326. Up to 2226 conditions per place. [2024-06-14 15:57:36,754 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 84 selfloop transitions, 17 changer transitions 0/106 dead transitions. [2024-06-14 15:57:36,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 106 transitions, 890 flow [2024-06-14 15:57:36,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 15:57:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 15:57:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-14 15:57:36,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2024-06-14 15:57:36,756 INFO L175 Difference]: Start difference. First operand has 72 places, 82 transitions, 596 flow. Second operand 7 states and 134 transitions. [2024-06-14 15:57:36,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 106 transitions, 890 flow [2024-06-14 15:57:36,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 106 transitions, 854 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-06-14 15:57:36,763 INFO L231 Difference]: Finished difference. Result has 76 places, 86 transitions, 649 flow [2024-06-14 15:57:36,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=649, PETRI_PLACES=76, PETRI_TRANSITIONS=86} [2024-06-14 15:57:36,765 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 33 predicate places. [2024-06-14 15:57:36,765 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 86 transitions, 649 flow [2024-06-14 15:57:36,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:36,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:36,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:36,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 15:57:36,765 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 15:57:36,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:36,766 INFO L85 PathProgramCache]: Analyzing trace with hash 233987930, now seen corresponding path program 1 times [2024-06-14 15:57:36,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:36,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989248645] [2024-06-14 15:57:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:36,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:44,370 INFO 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 15:57:44,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:44,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989248645] [2024-06-14 15:57:44,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989248645] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:44,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:44,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:57:44,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136075758] [2024-06-14 15:57:44,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:44,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:57:44,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:57:44,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:57:44,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:57:44,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 86 transitions, 649 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:44,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:44,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:57:44,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:45,538 INFO L124 PetriNetUnfolderBase]: 1627/2508 cut-off events. [2024-06-14 15:57:45,538 INFO L125 PetriNetUnfolderBase]: For 14167/14167 co-relation queries the response was YES. [2024-06-14 15:57:45,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11604 conditions, 2508 events. 1627/2508 cut-off events. For 14167/14167 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12675 event pairs, 474 based on Foata normal form. 10/2517 useless extension candidates. Maximal degree in co-relation 11569. Up to 2274 conditions per place. [2024-06-14 15:57:45,553 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 104 selfloop transitions, 27 changer transitions 0/136 dead transitions. [2024-06-14 15:57:45,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 136 transitions, 1238 flow [2024-06-14 15:57:45,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:57:45,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:57:45,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 162 transitions. [2024-06-14 15:57:45,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2024-06-14 15:57:45,555 INFO L175 Difference]: Start difference. First operand has 76 places, 86 transitions, 649 flow. Second operand 8 states and 162 transitions. [2024-06-14 15:57:45,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 136 transitions, 1238 flow [2024-06-14 15:57:45,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 136 transitions, 1179 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-06-14 15:57:45,563 INFO L231 Difference]: Finished difference. Result has 82 places, 106 transitions, 898 flow [2024-06-14 15:57:45,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=898, PETRI_PLACES=82, PETRI_TRANSITIONS=106} [2024-06-14 15:57:45,564 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2024-06-14 15:57:45,564 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 106 transitions, 898 flow [2024-06-14 15:57:45,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:45,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:45,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:45,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-14 15:57:45,565 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 15:57:45,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:45,565 INFO L85 PathProgramCache]: Analyzing trace with hash 239552120, now seen corresponding path program 2 times [2024-06-14 15:57:45,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:45,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729166692] [2024-06-14 15:57:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:45,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:57:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:57:53,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:57:53,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729166692] [2024-06-14 15:57:53,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729166692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:57:53,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:57:53,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:57:53,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685263474] [2024-06-14 15:57:53,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:57:53,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:57:53,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:57:53,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:57:53,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:57:53,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:57:53,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 106 transitions, 898 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:53,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:57:53,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:57:53,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:57:54,251 INFO L124 PetriNetUnfolderBase]: 1764/2719 cut-off events. [2024-06-14 15:57:54,252 INFO L125 PetriNetUnfolderBase]: For 18113/18113 co-relation queries the response was YES. [2024-06-14 15:57:54,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13585 conditions, 2719 events. 1764/2719 cut-off events. For 18113/18113 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13871 event pairs, 475 based on Foata normal form. 5/2723 useless extension candidates. Maximal degree in co-relation 13546. Up to 2373 conditions per place. [2024-06-14 15:57:54,270 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 118 selfloop transitions, 42 changer transitions 0/165 dead transitions. [2024-06-14 15:57:54,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 165 transitions, 1669 flow [2024-06-14 15:57:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:57:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:57:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-06-14 15:57:54,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-06-14 15:57:54,271 INFO L175 Difference]: Start difference. First operand has 82 places, 106 transitions, 898 flow. Second operand 8 states and 170 transitions. [2024-06-14 15:57:54,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 165 transitions, 1669 flow [2024-06-14 15:57:54,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 165 transitions, 1585 flow, removed 39 selfloop flow, removed 2 redundant places. [2024-06-14 15:57:54,288 INFO L231 Difference]: Finished difference. Result has 90 places, 130 transitions, 1236 flow [2024-06-14 15:57:54,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1236, PETRI_PLACES=90, PETRI_TRANSITIONS=130} [2024-06-14 15:57:54,289 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 47 predicate places. [2024-06-14 15:57:54,289 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 130 transitions, 1236 flow [2024-06-14 15:57:54,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:57:54,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:57:54,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:57:54,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-14 15:57:54,289 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 15:57:54,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:57:54,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1328915520, now seen corresponding path program 3 times [2024-06-14 15:57:54,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:57:54,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992983875] [2024-06-14 15:57:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:57:54,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:57:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:02,284 INFO 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 15:58:02,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992983875] [2024-06-14 15:58:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992983875] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:02,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:02,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:58:02,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273931474] [2024-06-14 15:58:02,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:02,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:58:02,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:02,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:58:02,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:58:02,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:58:02,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 130 transitions, 1236 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:02,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:02,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:58:02,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:03,596 INFO L124 PetriNetUnfolderBase]: 1859/2858 cut-off events. [2024-06-14 15:58:03,597 INFO L125 PetriNetUnfolderBase]: For 23523/23523 co-relation queries the response was YES. [2024-06-14 15:58:03,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15474 conditions, 2858 events. 1859/2858 cut-off events. For 23523/23523 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14753 event pairs, 485 based on Foata normal form. 10/2867 useless extension candidates. Maximal degree in co-relation 15431. Up to 2322 conditions per place. [2024-06-14 15:58:03,614 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 119 selfloop transitions, 61 changer transitions 0/185 dead transitions. [2024-06-14 15:58:03,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 185 transitions, 2043 flow [2024-06-14 15:58:03,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:58:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:58:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2024-06-14 15:58:03,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5148809523809523 [2024-06-14 15:58:03,616 INFO L175 Difference]: Start difference. First operand has 90 places, 130 transitions, 1236 flow. Second operand 8 states and 173 transitions. [2024-06-14 15:58:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 185 transitions, 2043 flow [2024-06-14 15:58:03,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 185 transitions, 1904 flow, removed 62 selfloop flow, removed 3 redundant places. [2024-06-14 15:58:03,646 INFO L231 Difference]: Finished difference. Result has 96 places, 147 transitions, 1474 flow [2024-06-14 15:58:03,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1474, PETRI_PLACES=96, PETRI_TRANSITIONS=147} [2024-06-14 15:58:03,647 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 53 predicate places. [2024-06-14 15:58:03,647 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 147 transitions, 1474 flow [2024-06-14 15:58:03,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:03,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:03,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:03,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-14 15:58:03,648 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 15:58:03,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1328905600, now seen corresponding path program 1 times [2024-06-14 15:58:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752745558] [2024-06-14 15:58:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:12,135 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 15:58:12,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:12,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752745558] [2024-06-14 15:58:12,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752745558] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:12,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:12,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:58:12,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146067564] [2024-06-14 15:58:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:12,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:58:12,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:58:12,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:58:12,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:58:12,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 147 transitions, 1474 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:12,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:12,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:58:12,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:13,430 INFO L124 PetriNetUnfolderBase]: 1859/2859 cut-off events. [2024-06-14 15:58:13,430 INFO L125 PetriNetUnfolderBase]: For 28504/28504 co-relation queries the response was YES. [2024-06-14 15:58:13,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16498 conditions, 2859 events. 1859/2859 cut-off events. For 28504/28504 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14687 event pairs, 500 based on Foata normal form. 6/2864 useless extension candidates. Maximal degree in co-relation 16452. Up to 2680 conditions per place. [2024-06-14 15:58:13,449 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 149 selfloop transitions, 20 changer transitions 0/174 dead transitions. [2024-06-14 15:58:13,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 174 transitions, 1928 flow [2024-06-14 15:58:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:58:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:58:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-14 15:58:13,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 15:58:13,451 INFO L175 Difference]: Start difference. First operand has 96 places, 147 transitions, 1474 flow. Second operand 8 states and 152 transitions. [2024-06-14 15:58:13,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 174 transitions, 1928 flow [2024-06-14 15:58:13,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 174 transitions, 1839 flow, removed 37 selfloop flow, removed 3 redundant places. [2024-06-14 15:58:13,479 INFO L231 Difference]: Finished difference. Result has 101 places, 150 transitions, 1495 flow [2024-06-14 15:58:13,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1385, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1495, PETRI_PLACES=101, PETRI_TRANSITIONS=150} [2024-06-14 15:58:13,480 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 58 predicate places. [2024-06-14 15:58:13,480 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 150 transitions, 1495 flow [2024-06-14 15:58:13,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:13,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:13,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:13,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-14 15:58:13,480 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 15:58:13,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1341075890, now seen corresponding path program 1 times [2024-06-14 15:58:13,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:13,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151046199] [2024-06-14 15:58:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:13,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:21,679 INFO 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 15:58:21,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:21,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151046199] [2024-06-14 15:58:21,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151046199] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:21,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:21,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:58:21,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242781030] [2024-06-14 15:58:21,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:21,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:58:21,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:21,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:58:21,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:58:21,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 15:58:21,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 150 transitions, 1495 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:21,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:21,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 15:58:21,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:22,928 INFO L124 PetriNetUnfolderBase]: 1827/2830 cut-off events. [2024-06-14 15:58:22,929 INFO L125 PetriNetUnfolderBase]: For 30356/30356 co-relation queries the response was YES. [2024-06-14 15:58:22,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16516 conditions, 2830 events. 1827/2830 cut-off events. For 30356/30356 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 14668 event pairs, 480 based on Foata normal form. 5/2826 useless extension candidates. Maximal degree in co-relation 16468. Up to 2554 conditions per place. [2024-06-14 15:58:22,948 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 138 selfloop transitions, 28 changer transitions 0/188 dead transitions. [2024-06-14 15:58:22,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 188 transitions, 2025 flow [2024-06-14 15:58:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:58:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:58:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-06-14 15:58:22,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-06-14 15:58:22,949 INFO L175 Difference]: Start difference. First operand has 101 places, 150 transitions, 1495 flow. Second operand 8 states and 164 transitions. [2024-06-14 15:58:22,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 188 transitions, 2025 flow [2024-06-14 15:58:22,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 188 transitions, 1939 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-06-14 15:58:22,972 INFO L231 Difference]: Finished difference. Result has 105 places, 160 transitions, 1610 flow [2024-06-14 15:58:22,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1409, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1610, PETRI_PLACES=105, PETRI_TRANSITIONS=160} [2024-06-14 15:58:22,973 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 62 predicate places. [2024-06-14 15:58:22,973 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 160 transitions, 1610 flow [2024-06-14 15:58:22,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:22,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:22,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:22,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-14 15:58:22,974 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 15:58:22,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash 636501620, now seen corresponding path program 2 times [2024-06-14 15:58:22,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:22,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540113975] [2024-06-14 15:58:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:22,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:31,520 INFO 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 15:58:31,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:31,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540113975] [2024-06-14 15:58:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540113975] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:31,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:58:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087458203] [2024-06-14 15:58:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:31,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:58:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:58:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:58:31,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 15:58:31,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 160 transitions, 1610 flow. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:31,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:31,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 15:58:31,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:32,671 INFO L124 PetriNetUnfolderBase]: 1809/2808 cut-off events. [2024-06-14 15:58:32,671 INFO L125 PetriNetUnfolderBase]: For 34186/34186 co-relation queries the response was YES. [2024-06-14 15:58:32,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17112 conditions, 2808 events. 1809/2808 cut-off events. For 34186/34186 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14569 event pairs, 470 based on Foata normal form. 6/2805 useless extension candidates. Maximal degree in co-relation 17061. Up to 2538 conditions per place. [2024-06-14 15:58:32,687 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 134 selfloop transitions, 33 changer transitions 0/189 dead transitions. [2024-06-14 15:58:32,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 189 transitions, 2104 flow [2024-06-14 15:58:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:58:32,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:58:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-14 15:58:32,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-06-14 15:58:32,690 INFO L175 Difference]: Start difference. First operand has 105 places, 160 transitions, 1610 flow. Second operand 8 states and 161 transitions. [2024-06-14 15:58:32,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 189 transitions, 2104 flow [2024-06-14 15:58:32,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 189 transitions, 1999 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-06-14 15:58:32,718 INFO L231 Difference]: Finished difference. Result has 109 places, 163 transitions, 1642 flow [2024-06-14 15:58:32,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1505, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1642, PETRI_PLACES=109, PETRI_TRANSITIONS=163} [2024-06-14 15:58:32,719 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 66 predicate places. [2024-06-14 15:58:32,719 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 163 transitions, 1642 flow [2024-06-14 15:58:32,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:32,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:32,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:32,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-14 15:58:32,720 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 15:58:32,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1336307346, now seen corresponding path program 1 times [2024-06-14 15:58:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655344073] [2024-06-14 15:58:32,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:40,513 INFO 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 15:58:40,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:40,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655344073] [2024-06-14 15:58:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655344073] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:40,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:58:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330796241] [2024-06-14 15:58:40,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:40,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:58:40,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:40,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:58:40,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:58:40,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:58:40,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 163 transitions, 1642 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:40,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:40,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:58:40,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:41,962 INFO L124 PetriNetUnfolderBase]: 1927/2979 cut-off events. [2024-06-14 15:58:41,962 INFO L125 PetriNetUnfolderBase]: For 39706/39706 co-relation queries the response was YES. [2024-06-14 15:58:41,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18361 conditions, 2979 events. 1927/2979 cut-off events. For 39706/39706 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 15557 event pairs, 463 based on Foata normal form. 12/2990 useless extension candidates. Maximal degree in co-relation 18309. Up to 2635 conditions per place. [2024-06-14 15:58:41,981 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 156 selfloop transitions, 49 changer transitions 0/210 dead transitions. [2024-06-14 15:58:41,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 210 transitions, 2430 flow [2024-06-14 15:58:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 15:58:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 15:58:41,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2024-06-14 15:58:41,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029761904761905 [2024-06-14 15:58:41,982 INFO L175 Difference]: Start difference. First operand has 109 places, 163 transitions, 1642 flow. Second operand 8 states and 169 transitions. [2024-06-14 15:58:41,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 210 transitions, 2430 flow [2024-06-14 15:58:42,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 210 transitions, 2295 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-06-14 15:58:42,019 INFO L231 Difference]: Finished difference. Result has 113 places, 177 transitions, 1902 flow [2024-06-14 15:58:42,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1547, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1902, PETRI_PLACES=113, PETRI_TRANSITIONS=177} [2024-06-14 15:58:42,019 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 70 predicate places. [2024-06-14 15:58:42,019 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 177 transitions, 1902 flow [2024-06-14 15:58:42,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:42,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:42,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:42,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-14 15:58:42,020 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 15:58:42,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1753589926, now seen corresponding path program 2 times [2024-06-14 15:58:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:42,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131493676] [2024-06-14 15:58:42,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:42,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:58:51,535 INFO 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 15:58:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:58:51,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131493676] [2024-06-14 15:58:51,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131493676] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:58:51,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:58:51,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:58:51,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860150193] [2024-06-14 15:58:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:58:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:58:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:58:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:58:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:58:51,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:58:51,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 177 transitions, 1902 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:51,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:58:51,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:58:51,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:58:53,142 INFO L124 PetriNetUnfolderBase]: 2077/3197 cut-off events. [2024-06-14 15:58:53,142 INFO L125 PetriNetUnfolderBase]: For 50801/50801 co-relation queries the response was YES. [2024-06-14 15:58:53,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21160 conditions, 3197 events. 2077/3197 cut-off events. For 50801/50801 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 16752 event pairs, 456 based on Foata normal form. 10/3206 useless extension candidates. Maximal degree in co-relation 21105. Up to 2430 conditions per place. [2024-06-14 15:58:53,164 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 157 selfloop transitions, 81 changer transitions 0/243 dead transitions. [2024-06-14 15:58:53,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 243 transitions, 3074 flow [2024-06-14 15:58:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 15:58:53,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 15:58:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 217 transitions. [2024-06-14 15:58:53,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-06-14 15:58:53,167 INFO L175 Difference]: Start difference. First operand has 113 places, 177 transitions, 1902 flow. Second operand 10 states and 217 transitions. [2024-06-14 15:58:53,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 243 transitions, 3074 flow [2024-06-14 15:58:53,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 243 transitions, 2893 flow, removed 79 selfloop flow, removed 3 redundant places. [2024-06-14 15:58:53,217 INFO L231 Difference]: Finished difference. Result has 121 places, 192 transitions, 2189 flow [2024-06-14 15:58:53,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1769, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2189, PETRI_PLACES=121, PETRI_TRANSITIONS=192} [2024-06-14 15:58:53,218 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 78 predicate places. [2024-06-14 15:58:53,218 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 192 transitions, 2189 flow [2024-06-14 15:58:53,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:58:53,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:58:53,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:58:53,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-14 15:58:53,219 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 15:58:53,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:58:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1547169388, now seen corresponding path program 3 times [2024-06-14 15:58:53,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:58:53,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144778107] [2024-06-14 15:58:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:58:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:58:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:59:02,809 INFO 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 15:59:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:59:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144778107] [2024-06-14 15:59:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144778107] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:59:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:59:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:59:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469159809] [2024-06-14 15:59:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:59:02,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:59:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:59:02,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:59:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:59:02,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:59:02,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 192 transitions, 2189 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:02,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:59:02,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:59:02,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:59:04,190 INFO L124 PetriNetUnfolderBase]: 2095/3228 cut-off events. [2024-06-14 15:59:04,190 INFO L125 PetriNetUnfolderBase]: For 58008/58008 co-relation queries the response was YES. [2024-06-14 15:59:04,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22461 conditions, 3228 events. 2095/3228 cut-off events. For 58008/58008 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 16955 event pairs, 461 based on Foata normal form. 15/3242 useless extension candidates. Maximal degree in co-relation 22403. Up to 2621 conditions per place. [2024-06-14 15:59:04,217 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 161 selfloop transitions, 72 changer transitions 0/238 dead transitions. [2024-06-14 15:59:04,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 238 transitions, 3026 flow [2024-06-14 15:59:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:59:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:59:04,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 194 transitions. [2024-06-14 15:59:04,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5132275132275133 [2024-06-14 15:59:04,218 INFO L175 Difference]: Start difference. First operand has 121 places, 192 transitions, 2189 flow. Second operand 9 states and 194 transitions. [2024-06-14 15:59:04,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 238 transitions, 3026 flow [2024-06-14 15:59:04,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 238 transitions, 2814 flow, removed 66 selfloop flow, removed 6 redundant places. [2024-06-14 15:59:04,269 INFO L231 Difference]: Finished difference. Result has 126 places, 202 transitions, 2361 flow [2024-06-14 15:59:04,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2361, PETRI_PLACES=126, PETRI_TRANSITIONS=202} [2024-06-14 15:59:04,269 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 83 predicate places. [2024-06-14 15:59:04,269 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 202 transitions, 2361 flow [2024-06-14 15:59:04,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:04,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:59:04,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:59:04,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-14 15:59:04,270 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 15:59:04,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:59:04,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1475436631, now seen corresponding path program 1 times [2024-06-14 15:59:04,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:59:04,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304526342] [2024-06-14 15:59:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:59:04,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:59:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:59:17,549 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 15:59:17,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:59:17,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304526342] [2024-06-14 15:59:17,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304526342] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:59:17,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:59:17,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 15:59:17,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348956511] [2024-06-14 15:59:17,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:59:17,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 15:59:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:59:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 15:59:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-06-14 15:59:17,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:59:17,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 202 transitions, 2361 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:17,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:59:17,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:59:17,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:59:18,736 INFO L124 PetriNetUnfolderBase]: 2025/3116 cut-off events. [2024-06-14 15:59:18,736 INFO L125 PetriNetUnfolderBase]: For 60712/60712 co-relation queries the response was YES. [2024-06-14 15:59:18,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22157 conditions, 3116 events. 2025/3116 cut-off events. For 60712/60712 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 16232 event pairs, 490 based on Foata normal form. 7/3122 useless extension candidates. Maximal degree in co-relation 22095. Up to 2883 conditions per place. [2024-06-14 15:59:18,761 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 185 selfloop transitions, 28 changer transitions 0/218 dead transitions. [2024-06-14 15:59:18,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 218 transitions, 2845 flow [2024-06-14 15:59:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 15:59:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 15:59:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-06-14 15:59:18,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-06-14 15:59:18,768 INFO L175 Difference]: Start difference. First operand has 126 places, 202 transitions, 2361 flow. Second operand 6 states and 120 transitions. [2024-06-14 15:59:18,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 218 transitions, 2845 flow [2024-06-14 15:59:18,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 218 transitions, 2676 flow, removed 74 selfloop flow, removed 4 redundant places. [2024-06-14 15:59:18,829 INFO L231 Difference]: Finished difference. Result has 128 places, 202 transitions, 2265 flow [2024-06-14 15:59:18,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2192, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2265, PETRI_PLACES=128, PETRI_TRANSITIONS=202} [2024-06-14 15:59:18,830 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 85 predicate places. [2024-06-14 15:59:18,830 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 202 transitions, 2265 flow [2024-06-14 15:59:18,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:18,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:59:18,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:59:18,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-14 15:59:18,830 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 15:59:18,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:59:18,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1376321755, now seen corresponding path program 1 times [2024-06-14 15:59:18,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:59:18,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727068893] [2024-06-14 15:59:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:59:18,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:59:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:59:27,968 INFO 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 15:59:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:59:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727068893] [2024-06-14 15:59:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727068893] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:59:27,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:59:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 15:59:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796436953] [2024-06-14 15:59:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:59:27,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 15:59:27,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:59:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 15:59:27,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-14 15:59:28,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:59:28,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 202 transitions, 2265 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:28,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:59:28,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:59:28,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:59:29,419 INFO L124 PetriNetUnfolderBase]: 2070/3181 cut-off events. [2024-06-14 15:59:29,419 INFO L125 PetriNetUnfolderBase]: For 59026/59026 co-relation queries the response was YES. [2024-06-14 15:59:29,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22273 conditions, 3181 events. 2070/3181 cut-off events. For 59026/59026 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 16567 event pairs, 474 based on Foata normal form. 5/3185 useless extension candidates. Maximal degree in co-relation 22210. Up to 2915 conditions per place. [2024-06-14 15:59:29,443 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 213 selfloop transitions, 42 changer transitions 0/260 dead transitions. [2024-06-14 15:59:29,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 260 transitions, 3255 flow [2024-06-14 15:59:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:59:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:59:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-06-14 15:59:29,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48677248677248675 [2024-06-14 15:59:29,444 INFO L175 Difference]: Start difference. First operand has 128 places, 202 transitions, 2265 flow. Second operand 9 states and 184 transitions. [2024-06-14 15:59:29,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 260 transitions, 3255 flow [2024-06-14 15:59:29,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 260 transitions, 3161 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-06-14 15:59:29,498 INFO L231 Difference]: Finished difference. Result has 135 places, 225 transitions, 2665 flow [2024-06-14 15:59:29,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2195, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2665, PETRI_PLACES=135, PETRI_TRANSITIONS=225} [2024-06-14 15:59:29,498 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 92 predicate places. [2024-06-14 15:59:29,498 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 225 transitions, 2665 flow [2024-06-14 15:59:29,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:29,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:59:29,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:59:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-14 15:59:29,499 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 15:59:29,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:59:29,499 INFO L85 PathProgramCache]: Analyzing trace with hash -213984033, now seen corresponding path program 1 times [2024-06-14 15:59:29,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:59:29,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111628104] [2024-06-14 15:59:29,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:59:29,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:59:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:59:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 15:59:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:59:39,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111628104] [2024-06-14 15:59:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111628104] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:59:39,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:59:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:59:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918699888] [2024-06-14 15:59:39,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:59:39,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:59:39,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:59:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:59:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:59:39,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:59:39,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 225 transitions, 2665 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:39,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:59:39,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:59:39,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:59:40,847 INFO L124 PetriNetUnfolderBase]: 2390/3699 cut-off events. [2024-06-14 15:59:40,847 INFO L125 PetriNetUnfolderBase]: For 91457/91457 co-relation queries the response was YES. [2024-06-14 15:59:40,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26063 conditions, 3699 events. 2390/3699 cut-off events. For 91457/91457 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 19896 event pairs, 523 based on Foata normal form. 92/3790 useless extension candidates. Maximal degree in co-relation 25997. Up to 2878 conditions per place. [2024-06-14 15:59:40,878 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 212 selfloop transitions, 54 changer transitions 1/272 dead transitions. [2024-06-14 15:59:40,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 272 transitions, 3486 flow [2024-06-14 15:59:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:59:40,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:59:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 192 transitions. [2024-06-14 15:59:40,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2024-06-14 15:59:40,879 INFO L175 Difference]: Start difference. First operand has 135 places, 225 transitions, 2665 flow. Second operand 9 states and 192 transitions. [2024-06-14 15:59:40,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 272 transitions, 3486 flow [2024-06-14 15:59:40,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 272 transitions, 3296 flow, removed 80 selfloop flow, removed 4 redundant places. [2024-06-14 15:59:40,967 INFO L231 Difference]: Finished difference. Result has 140 places, 227 transitions, 2661 flow [2024-06-14 15:59:40,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2475, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2661, PETRI_PLACES=140, PETRI_TRANSITIONS=227} [2024-06-14 15:59:40,967 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 97 predicate places. [2024-06-14 15:59:40,968 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 227 transitions, 2661 flow [2024-06-14 15:59:40,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:40,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:59:40,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:59:40,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-14 15:59:40,968 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 15:59:40,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:59:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash -461108815, now seen corresponding path program 2 times [2024-06-14 15:59:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:59:40,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610354988] [2024-06-14 15:59:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:59:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:59:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 15:59:49,386 INFO 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 15:59:49,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 15:59:49,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610354988] [2024-06-14 15:59:49,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610354988] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 15:59:49,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 15:59:49,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 15:59:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786078904] [2024-06-14 15:59:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 15:59:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 15:59:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 15:59:49,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 15:59:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 15:59:49,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 15:59:49,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 227 transitions, 2661 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:49,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 15:59:49,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 15:59:49,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 15:59:51,110 INFO L124 PetriNetUnfolderBase]: 2539/3931 cut-off events. [2024-06-14 15:59:51,110 INFO L125 PetriNetUnfolderBase]: For 87261/87261 co-relation queries the response was YES. [2024-06-14 15:59:51,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28075 conditions, 3931 events. 2539/3931 cut-off events. For 87261/87261 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 21357 event pairs, 526 based on Foata normal form. 17/3946 useless extension candidates. Maximal degree in co-relation 28007. Up to 3362 conditions per place. [2024-06-14 15:59:51,144 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 215 selfloop transitions, 77 changer transitions 0/297 dead transitions. [2024-06-14 15:59:51,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 297 transitions, 3986 flow [2024-06-14 15:59:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 15:59:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 15:59:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 191 transitions. [2024-06-14 15:59:51,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052910052910053 [2024-06-14 15:59:51,148 INFO L175 Difference]: Start difference. First operand has 140 places, 227 transitions, 2661 flow. Second operand 9 states and 191 transitions. [2024-06-14 15:59:51,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 297 transitions, 3986 flow [2024-06-14 15:59:51,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 297 transitions, 3847 flow, removed 18 selfloop flow, removed 7 redundant places. [2024-06-14 15:59:51,256 INFO L231 Difference]: Finished difference. Result has 145 places, 256 transitions, 3224 flow [2024-06-14 15:59:51,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2528, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3224, PETRI_PLACES=145, PETRI_TRANSITIONS=256} [2024-06-14 15:59:51,256 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 102 predicate places. [2024-06-14 15:59:51,256 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 256 transitions, 3224 flow [2024-06-14 15:59:51,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 15:59:51,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 15:59:51,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 15:59:51,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-14 15:59:51,257 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 15:59:51,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 15:59:51,257 INFO L85 PathProgramCache]: Analyzing trace with hash -451902745, now seen corresponding path program 3 times [2024-06-14 15:59:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 15:59:51,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628066016] [2024-06-14 15:59:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 15:59:51,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 15:59:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:02,206 INFO 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 16:00:02,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628066016] [2024-06-14 16:00:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628066016] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:00:02,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477458542] [2024-06-14 16:00:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:02,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:00:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:00:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:00:02,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:00:02,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 256 transitions, 3224 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:02,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:02,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:00:02,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:04,164 INFO L124 PetriNetUnfolderBase]: 2810/4392 cut-off events. [2024-06-14 16:00:04,164 INFO L125 PetriNetUnfolderBase]: For 109099/109099 co-relation queries the response was YES. [2024-06-14 16:00:04,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32766 conditions, 4392 events. 2810/4392 cut-off events. For 109099/109099 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 24574 event pairs, 545 based on Foata normal form. 16/4407 useless extension candidates. Maximal degree in co-relation 32694. Up to 3343 conditions per place. [2024-06-14 16:00:04,201 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 255 selfloop transitions, 74 changer transitions 1/335 dead transitions. [2024-06-14 16:00:04,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 335 transitions, 4758 flow [2024-06-14 16:00:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:00:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:00:04,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 216 transitions. [2024-06-14 16:00:04,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-06-14 16:00:04,203 INFO L175 Difference]: Start difference. First operand has 145 places, 256 transitions, 3224 flow. Second operand 10 states and 216 transitions. [2024-06-14 16:00:04,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 335 transitions, 4758 flow [2024-06-14 16:00:04,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 335 transitions, 4578 flow, removed 89 selfloop flow, removed 1 redundant places. [2024-06-14 16:00:04,328 INFO L231 Difference]: Finished difference. Result has 156 places, 275 transitions, 3588 flow [2024-06-14 16:00:04,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3070, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3588, PETRI_PLACES=156, PETRI_TRANSITIONS=275} [2024-06-14 16:00:04,329 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 113 predicate places. [2024-06-14 16:00:04,329 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 275 transitions, 3588 flow [2024-06-14 16:00:04,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:04,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:04,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 16:00:04,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-14 16:00:04,330 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 16:00:04,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:04,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1738982975, now seen corresponding path program 4 times [2024-06-14 16:00:04,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:04,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189650060] [2024-06-14 16:00:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:04,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:00:12,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:12,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189650060] [2024-06-14 16:00:12,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189650060] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:12,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:12,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:00:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351009865] [2024-06-14 16:00:12,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:12,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:00:12,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:12,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:00:12,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:00:12,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:00:12,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 275 transitions, 3588 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:12,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:12,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:00:12,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:14,600 INFO L124 PetriNetUnfolderBase]: 2935/4592 cut-off events. [2024-06-14 16:00:14,600 INFO L125 PetriNetUnfolderBase]: For 123501/123501 co-relation queries the response was YES. [2024-06-14 16:00:14,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35363 conditions, 4592 events. 2935/4592 cut-off events. For 123501/123501 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 25941 event pairs, 631 based on Foata normal form. 25/4615 useless extension candidates. Maximal degree in co-relation 35286. Up to 3936 conditions per place. [2024-06-14 16:00:14,642 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 243 selfloop transitions, 83 changer transitions 0/331 dead transitions. [2024-06-14 16:00:14,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 331 transitions, 4871 flow [2024-06-14 16:00:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:00:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:00:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 192 transitions. [2024-06-14 16:00:14,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2024-06-14 16:00:14,644 INFO L175 Difference]: Start difference. First operand has 156 places, 275 transitions, 3588 flow. Second operand 9 states and 192 transitions. [2024-06-14 16:00:14,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 331 transitions, 4871 flow [2024-06-14 16:00:14,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 331 transitions, 4794 flow, removed 31 selfloop flow, removed 3 redundant places. [2024-06-14 16:00:14,792 INFO L231 Difference]: Finished difference. Result has 165 places, 290 transitions, 4076 flow [2024-06-14 16:00:14,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3513, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4076, PETRI_PLACES=165, PETRI_TRANSITIONS=290} [2024-06-14 16:00:14,792 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 122 predicate places. [2024-06-14 16:00:14,793 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 290 transitions, 4076 flow [2024-06-14 16:00:14,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:14,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:14,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 16:00:14,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-14 16:00:14,793 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:00:14,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:14,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1473285695, now seen corresponding path program 5 times [2024-06-14 16:00:14,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:14,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364497362] [2024-06-14 16:00:14,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:00:24,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:24,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364497362] [2024-06-14 16:00:24,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364497362] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:24,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:24,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:00:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170569781] [2024-06-14 16:00:24,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:24,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:00:24,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:00:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:00:24,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:00:24,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 290 transitions, 4076 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:24,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:24,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:00:24,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:26,021 INFO L124 PetriNetUnfolderBase]: 3040/4753 cut-off events. [2024-06-14 16:00:26,022 INFO L125 PetriNetUnfolderBase]: For 139484/139484 co-relation queries the response was YES. [2024-06-14 16:00:26,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38107 conditions, 4753 events. 3040/4753 cut-off events. For 139484/139484 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 26945 event pairs, 644 based on Foata normal form. 25/4776 useless extension candidates. Maximal degree in co-relation 38025. Up to 3956 conditions per place. [2024-06-14 16:00:26,065 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 228 selfloop transitions, 111 changer transitions 0/344 dead transitions. [2024-06-14 16:00:26,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 344 transitions, 5362 flow [2024-06-14 16:00:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:00:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:00:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 192 transitions. [2024-06-14 16:00:26,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2024-06-14 16:00:26,067 INFO L175 Difference]: Start difference. First operand has 165 places, 290 transitions, 4076 flow. Second operand 9 states and 192 transitions. [2024-06-14 16:00:26,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 344 transitions, 5362 flow [2024-06-14 16:00:26,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 344 transitions, 5246 flow, removed 48 selfloop flow, removed 2 redundant places. [2024-06-14 16:00:26,232 INFO L231 Difference]: Finished difference. Result has 174 places, 302 transitions, 4520 flow [2024-06-14 16:00:26,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=3960, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4520, PETRI_PLACES=174, PETRI_TRANSITIONS=302} [2024-06-14 16:00:26,233 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 131 predicate places. [2024-06-14 16:00:26,233 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 302 transitions, 4520 flow [2024-06-14 16:00:26,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:26,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:26,234 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 16:00:26,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-14 16:00:26,234 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 16:00:26,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1679829139, now seen corresponding path program 1 times [2024-06-14 16:00:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:26,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280594982] [2024-06-14 16:00:26,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:26,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:35,648 INFO 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 16:00:35,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:35,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280594982] [2024-06-14 16:00:35,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280594982] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:35,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:35,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:00:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776844229] [2024-06-14 16:00:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:35,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:00:35,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:35,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:00:35,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:00:35,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 16:00:35,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 302 transitions, 4520 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:35,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:35,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 16:00:35,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:37,619 INFO L124 PetriNetUnfolderBase]: 3072/4836 cut-off events. [2024-06-14 16:00:37,619 INFO L125 PetriNetUnfolderBase]: For 155844/155876 co-relation queries the response was YES. [2024-06-14 16:00:37,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40629 conditions, 4836 events. 3072/4836 cut-off events. For 155844/155876 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 27694 event pairs, 714 based on Foata normal form. 10/4824 useless extension candidates. Maximal degree in co-relation 40543. Up to 4390 conditions per place. [2024-06-14 16:00:37,664 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 271 selfloop transitions, 47 changer transitions 0/356 dead transitions. [2024-06-14 16:00:37,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 356 transitions, 5546 flow [2024-06-14 16:00:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:00:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:00:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 184 transitions. [2024-06-14 16:00:37,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48677248677248675 [2024-06-14 16:00:37,667 INFO L175 Difference]: Start difference. First operand has 174 places, 302 transitions, 4520 flow. Second operand 9 states and 184 transitions. [2024-06-14 16:00:37,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 356 transitions, 5546 flow [2024-06-14 16:00:37,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 356 transitions, 5313 flow, removed 71 selfloop flow, removed 4 redundant places. [2024-06-14 16:00:37,854 INFO L231 Difference]: Finished difference. Result has 182 places, 323 transitions, 4738 flow [2024-06-14 16:00:37,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=4293, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4738, PETRI_PLACES=182, PETRI_TRANSITIONS=323} [2024-06-14 16:00:37,855 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 139 predicate places. [2024-06-14 16:00:37,855 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 323 transitions, 4738 flow [2024-06-14 16:00:37,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:37,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:37,855 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 16:00:37,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-14 16:00:37,855 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 16:00:37,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:37,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1508952915, now seen corresponding path program 2 times [2024-06-14 16:00:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:37,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761806410] [2024-06-14 16:00:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:37,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:46,041 INFO 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 16:00:46,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:46,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761806410] [2024-06-14 16:00:46,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761806410] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:46,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:46,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:00:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191813490] [2024-06-14 16:00:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:00:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:00:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:00:46,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 16:00:46,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 323 transitions, 4738 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:46,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:46,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 16:00:46,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:47,988 INFO L124 PetriNetUnfolderBase]: 3123/4921 cut-off events. [2024-06-14 16:00:47,988 INFO L125 PetriNetUnfolderBase]: For 165245/165280 co-relation queries the response was YES. [2024-06-14 16:00:48,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 4921 events. 3123/4921 cut-off events. For 165245/165280 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 28210 event pairs, 552 based on Foata normal form. 28/4927 useless extension candidates. Maximal degree in co-relation 41397. Up to 4354 conditions per place. [2024-06-14 16:00:48,038 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 271 selfloop transitions, 53 changer transitions 0/362 dead transitions. [2024-06-14 16:00:48,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 362 transitions, 5618 flow [2024-06-14 16:00:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:00:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:00:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 183 transitions. [2024-06-14 16:00:48,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2024-06-14 16:00:48,040 INFO L175 Difference]: Start difference. First operand has 182 places, 323 transitions, 4738 flow. Second operand 9 states and 183 transitions. [2024-06-14 16:00:48,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 362 transitions, 5618 flow [2024-06-14 16:00:48,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 362 transitions, 5516 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-06-14 16:00:48,250 INFO L231 Difference]: Finished difference. Result has 189 places, 327 transitions, 4859 flow [2024-06-14 16:00:48,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=4636, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4859, PETRI_PLACES=189, PETRI_TRANSITIONS=327} [2024-06-14 16:00:48,250 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 146 predicate places. [2024-06-14 16:00:48,251 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 327 transitions, 4859 flow [2024-06-14 16:00:48,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:48,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:48,251 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 16:00:48,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-14 16:00:48,251 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 16:00:48,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash -283702099, now seen corresponding path program 3 times [2024-06-14 16:00:48,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:48,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995652459] [2024-06-14 16:00:48,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:48,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:00:57,394 INFO 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 16:00:57,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:00:57,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995652459] [2024-06-14 16:00:57,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995652459] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:00:57,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:00:57,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:00:57,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95448318] [2024-06-14 16:00:57,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:00:57,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:00:57,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:00:57,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:00:57,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:00:57,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 16:00:57,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 327 transitions, 4859 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:57,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:00:57,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 16:00:57,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:00:59,400 INFO L124 PetriNetUnfolderBase]: 3177/5007 cut-off events. [2024-06-14 16:00:59,400 INFO L125 PetriNetUnfolderBase]: For 177904/177953 co-relation queries the response was YES. [2024-06-14 16:00:59,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42790 conditions, 5007 events. 3177/5007 cut-off events. For 177904/177953 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 28901 event pairs, 692 based on Foata normal form. 24/5009 useless extension candidates. Maximal degree in co-relation 42697. Up to 4462 conditions per place. [2024-06-14 16:00:59,449 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 259 selfloop transitions, 68 changer transitions 0/365 dead transitions. [2024-06-14 16:00:59,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 365 transitions, 5759 flow [2024-06-14 16:00:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:00:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:00:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 189 transitions. [2024-06-14 16:00:59,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-14 16:00:59,450 INFO L175 Difference]: Start difference. First operand has 189 places, 327 transitions, 4859 flow. Second operand 9 states and 189 transitions. [2024-06-14 16:00:59,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 365 transitions, 5759 flow [2024-06-14 16:00:59,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 365 transitions, 5582 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-06-14 16:00:59,665 INFO L231 Difference]: Finished difference. Result has 193 places, 329 transitions, 4924 flow [2024-06-14 16:00:59,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=4686, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4924, PETRI_PLACES=193, PETRI_TRANSITIONS=329} [2024-06-14 16:00:59,665 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 150 predicate places. [2024-06-14 16:00:59,665 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 329 transitions, 4924 flow [2024-06-14 16:00:59,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:00:59,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:00:59,666 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 16:00:59,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-14 16:00:59,666 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 16:00:59,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:00:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1511814835, now seen corresponding path program 1 times [2024-06-14 16:00:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:00:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315012436] [2024-06-14 16:00:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:00:59,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:00:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:01:09,201 INFO 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 16:01:09,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:01:09,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315012436] [2024-06-14 16:01:09,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315012436] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:01:09,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:01:09,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:01:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348051038] [2024-06-14 16:01:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:01:09,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:01:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:01:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:01:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:01:09,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:01:09,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 329 transitions, 4924 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:09,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:01:09,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:01:09,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:01:11,263 INFO L124 PetriNetUnfolderBase]: 3307/5176 cut-off events. [2024-06-14 16:01:11,264 INFO L125 PetriNetUnfolderBase]: For 178671/178671 co-relation queries the response was YES. [2024-06-14 16:01:11,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44337 conditions, 5176 events. 3307/5176 cut-off events. For 178671/178671 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 29671 event pairs, 698 based on Foata normal form. 5/5180 useless extension candidates. Maximal degree in co-relation 44242. Up to 4766 conditions per place. [2024-06-14 16:01:11,322 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 312 selfloop transitions, 70 changer transitions 0/387 dead transitions. [2024-06-14 16:01:11,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 387 transitions, 6253 flow [2024-06-14 16:01:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:01:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:01:11,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 202 transitions. [2024-06-14 16:01:11,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2024-06-14 16:01:11,323 INFO L175 Difference]: Start difference. First operand has 193 places, 329 transitions, 4924 flow. Second operand 10 states and 202 transitions. [2024-06-14 16:01:11,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 387 transitions, 6253 flow [2024-06-14 16:01:11,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 387 transitions, 6059 flow, removed 25 selfloop flow, removed 7 redundant places. [2024-06-14 16:01:11,651 INFO L231 Difference]: Finished difference. Result has 199 places, 349 transitions, 5305 flow [2024-06-14 16:01:11,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=4751, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5305, PETRI_PLACES=199, PETRI_TRANSITIONS=349} [2024-06-14 16:01:11,652 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 156 predicate places. [2024-06-14 16:01:11,652 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 349 transitions, 5305 flow [2024-06-14 16:01:11,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:11,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:01:11,652 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 16:01:11,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-14 16:01:11,653 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 16:01:11,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:01:11,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1792740179, now seen corresponding path program 4 times [2024-06-14 16:01:11,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:01:11,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459727032] [2024-06-14 16:01:11,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:01:11,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:01:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:01:20,831 INFO 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 16:01:20,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:01:20,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459727032] [2024-06-14 16:01:20,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459727032] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:01:20,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:01:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:01:20,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124591152] [2024-06-14 16:01:20,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:01:20,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:01:20,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:01:20,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:01:20,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:01:21,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 16:01:21,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 349 transitions, 5305 flow. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:21,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:01:21,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 16:01:21,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:01:22,843 INFO L124 PetriNetUnfolderBase]: 3291/5187 cut-off events. [2024-06-14 16:01:22,843 INFO L125 PetriNetUnfolderBase]: For 201200/201249 co-relation queries the response was YES. [2024-06-14 16:01:22,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45204 conditions, 5187 events. 3291/5187 cut-off events. For 201200/201249 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 30161 event pairs, 682 based on Foata normal form. 23/5188 useless extension candidates. Maximal degree in co-relation 45105. Up to 4699 conditions per place. [2024-06-14 16:01:22,899 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 301 selfloop transitions, 46 changer transitions 0/386 dead transitions. [2024-06-14 16:01:22,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 386 transitions, 6257 flow [2024-06-14 16:01:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:01:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:01:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2024-06-14 16:01:22,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2024-06-14 16:01:22,900 INFO L175 Difference]: Start difference. First operand has 199 places, 349 transitions, 5305 flow. Second operand 9 states and 182 transitions. [2024-06-14 16:01:22,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 386 transitions, 6257 flow [2024-06-14 16:01:23,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 386 transitions, 6034 flow, removed 83 selfloop flow, removed 4 redundant places. [2024-06-14 16:01:23,137 INFO L231 Difference]: Finished difference. Result has 204 places, 351 transitions, 5262 flow [2024-06-14 16:01:23,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5082, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5262, PETRI_PLACES=204, PETRI_TRANSITIONS=351} [2024-06-14 16:01:23,137 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 161 predicate places. [2024-06-14 16:01:23,137 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 351 transitions, 5262 flow [2024-06-14 16:01:23,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:23,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:01:23,138 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 16:01:23,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-14 16:01:23,138 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 16:01:23,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:01:23,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1799411379, now seen corresponding path program 2 times [2024-06-14 16:01:23,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:01:23,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362321898] [2024-06-14 16:01:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:01:23,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:01:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:01:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:01:32,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:01:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362321898] [2024-06-14 16:01:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362321898] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:01:32,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:01:32,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:01:32,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961113879] [2024-06-14 16:01:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:01:32,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:01:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:01:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:01:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:01:32,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:01:32,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 351 transitions, 5262 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:32,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:01:32,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:01:32,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:01:34,475 INFO L124 PetriNetUnfolderBase]: 3418/5363 cut-off events. [2024-06-14 16:01:34,475 INFO L125 PetriNetUnfolderBase]: For 201240/201240 co-relation queries the response was YES. [2024-06-14 16:01:34,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46866 conditions, 5363 events. 3418/5363 cut-off events. For 201240/201240 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 31074 event pairs, 688 based on Foata normal form. 5/5367 useless extension candidates. Maximal degree in co-relation 46765. Up to 4924 conditions per place. [2024-06-14 16:01:34,539 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 347 selfloop transitions, 50 changer transitions 1/403 dead transitions. [2024-06-14 16:01:34,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 403 transitions, 6470 flow [2024-06-14 16:01:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:01:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:01:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 219 transitions. [2024-06-14 16:01:34,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.474025974025974 [2024-06-14 16:01:34,541 INFO L175 Difference]: Start difference. First operand has 204 places, 351 transitions, 5262 flow. Second operand 11 states and 219 transitions. [2024-06-14 16:01:34,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 403 transitions, 6470 flow [2024-06-14 16:01:34,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 403 transitions, 6342 flow, removed 21 selfloop flow, removed 7 redundant places. [2024-06-14 16:01:34,819 INFO L231 Difference]: Finished difference. Result has 210 places, 362 transitions, 5517 flow [2024-06-14 16:01:34,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5134, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5517, PETRI_PLACES=210, PETRI_TRANSITIONS=362} [2024-06-14 16:01:34,820 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 167 predicate places. [2024-06-14 16:01:34,820 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 362 transitions, 5517 flow [2024-06-14 16:01:34,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:34,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:01:34,820 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 16:01:34,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-14 16:01:34,820 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:01:34,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:01:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1529881597, now seen corresponding path program 5 times [2024-06-14 16:01:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:01:34,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797653882] [2024-06-14 16:01:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:01:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:01:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:01:43,377 INFO 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 16:01:43,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:01:43,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797653882] [2024-06-14 16:01:43,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797653882] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:01:43,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:01:43,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 16:01:43,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510008639] [2024-06-14 16:01:43,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:01:43,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 16:01:43,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:01:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 16:01:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-14 16:01:43,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-06-14 16:01:43,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 362 transitions, 5517 flow. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 16:01:43,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:01:43,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-06-14 16:01:43,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:01:45,278 INFO L124 PetriNetUnfolderBase]: 3389/5344 cut-off events. [2024-06-14 16:01:45,278 INFO L125 PetriNetUnfolderBase]: For 225369/225418 co-relation queries the response was YES. [2024-06-14 16:01:45,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47337 conditions, 5344 events. 3389/5344 cut-off events. For 225369/225418 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 31304 event pairs, 640 based on Foata normal form. 23/5332 useless extension candidates. Maximal degree in co-relation 47233. Up to 4531 conditions per place. [2024-06-14 16:01:45,342 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 279 selfloop transitions, 85 changer transitions 0/405 dead transitions. [2024-06-14 16:01:45,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 405 transitions, 6754 flow [2024-06-14 16:01:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-14 16:01:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-14 16:01:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-06-14 16:01:45,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-06-14 16:01:45,343 INFO L175 Difference]: Start difference. First operand has 210 places, 362 transitions, 5517 flow. Second operand 8 states and 170 transitions. [2024-06-14 16:01:45,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 405 transitions, 6754 flow [2024-06-14 16:01:45,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 405 transitions, 6517 flow, removed 81 selfloop flow, removed 6 redundant places. [2024-06-14 16:01:45,649 INFO L231 Difference]: Finished difference. Result has 214 places, 371 transitions, 5754 flow [2024-06-14 16:01:45,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5280, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5754, PETRI_PLACES=214, PETRI_TRANSITIONS=371} [2024-06-14 16:01:45,650 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 171 predicate places. [2024-06-14 16:01:45,650 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 371 transitions, 5754 flow [2024-06-14 16:01:45,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 16:01:45,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:01:45,650 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 16:01:45,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-14 16:01:45,651 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:01:45,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:01:45,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1926095173, now seen corresponding path program 3 times [2024-06-14 16:01:45,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:01:45,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719438591] [2024-06-14 16:01:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:01:45,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:01:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:01:56,071 INFO 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 16:01:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:01:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719438591] [2024-06-14 16:01:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719438591] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:01:56,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:01:56,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:01:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309625704] [2024-06-14 16:01:56,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:01:56,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:01:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:01:56,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:01:56,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:01:56,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:01:56,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 371 transitions, 5754 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:56,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:01:56,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:01:56,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:01:58,395 INFO L124 PetriNetUnfolderBase]: 3522/5533 cut-off events. [2024-06-14 16:01:58,395 INFO L125 PetriNetUnfolderBase]: For 228785/228785 co-relation queries the response was YES. [2024-06-14 16:01:58,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49800 conditions, 5533 events. 3522/5533 cut-off events. For 228785/228785 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 32378 event pairs, 633 based on Foata normal form. 5/5537 useless extension candidates. Maximal degree in co-relation 49693. Up to 4781 conditions per place. [2024-06-14 16:01:58,454 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 331 selfloop transitions, 91 changer transitions 0/427 dead transitions. [2024-06-14 16:01:58,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 427 transitions, 7091 flow [2024-06-14 16:01:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:01:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:01:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 231 transitions. [2024-06-14 16:01:58,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-14 16:01:58,455 INFO L175 Difference]: Start difference. First operand has 214 places, 371 transitions, 5754 flow. Second operand 11 states and 231 transitions. [2024-06-14 16:01:58,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 427 transitions, 7091 flow [2024-06-14 16:01:58,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 427 transitions, 6954 flow, removed 44 selfloop flow, removed 3 redundant places. [2024-06-14 16:01:58,783 INFO L231 Difference]: Finished difference. Result has 222 places, 381 transitions, 6042 flow [2024-06-14 16:01:58,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5617, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6042, PETRI_PLACES=222, PETRI_TRANSITIONS=381} [2024-06-14 16:01:58,784 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 179 predicate places. [2024-06-14 16:01:58,784 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 381 transitions, 6042 flow [2024-06-14 16:01:58,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:01:58,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:01:58,785 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 16:01:58,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-14 16:01:58,785 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:01:58,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:01:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1572776261, now seen corresponding path program 4 times [2024-06-14 16:01:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:01:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232917342] [2024-06-14 16:01:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:01:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:01:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:02:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:02:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:02:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232917342] [2024-06-14 16:02:10,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232917342] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:02:10,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:02:10,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:02:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414922327] [2024-06-14 16:02:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:02:10,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:02:10,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:02:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:02:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:02:10,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:02:10,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 381 transitions, 6042 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:10,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:02:10,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:02:10,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:02:12,992 INFO L124 PetriNetUnfolderBase]: 3552/5585 cut-off events. [2024-06-14 16:02:12,993 INFO L125 PetriNetUnfolderBase]: For 240648/240648 co-relation queries the response was YES. [2024-06-14 16:02:13,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51294 conditions, 5585 events. 3552/5585 cut-off events. For 240648/240648 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 32844 event pairs, 629 based on Foata normal form. 5/5589 useless extension candidates. Maximal degree in co-relation 51185. Up to 4561 conditions per place. [2024-06-14 16:02:13,066 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 310 selfloop transitions, 127 changer transitions 0/442 dead transitions. [2024-06-14 16:02:13,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 442 transitions, 7638 flow [2024-06-14 16:02:13,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-14 16:02:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-14 16:02:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 253 transitions. [2024-06-14 16:02:13,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501984126984127 [2024-06-14 16:02:13,067 INFO L175 Difference]: Start difference. First operand has 222 places, 381 transitions, 6042 flow. Second operand 12 states and 253 transitions. [2024-06-14 16:02:13,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 442 transitions, 7638 flow [2024-06-14 16:02:13,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 442 transitions, 7290 flow, removed 87 selfloop flow, removed 8 redundant places. [2024-06-14 16:02:13,480 INFO L231 Difference]: Finished difference. Result has 226 places, 389 transitions, 6243 flow [2024-06-14 16:02:13,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5694, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6243, PETRI_PLACES=226, PETRI_TRANSITIONS=389} [2024-06-14 16:02:13,481 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 183 predicate places. [2024-06-14 16:02:13,481 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 389 transitions, 6243 flow [2024-06-14 16:02:13,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:13,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:02:13,481 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 16:02:13,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-14 16:02:13,481 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 16:02:13,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:02:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash -63559810, now seen corresponding path program 1 times [2024-06-14 16:02:13,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:02:13,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373383829] [2024-06-14 16:02:13,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:02:13,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:02:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:02:23,782 INFO 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 16:02:23,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:02:23,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373383829] [2024-06-14 16:02:23,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373383829] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:02:23,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:02:23,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:02:23,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012595987] [2024-06-14 16:02:23,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:02:23,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:02:23,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:02:23,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:02:23,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:02:23,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:02:23,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 389 transitions, 6243 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:23,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:02:23,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:02:23,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:02:25,631 INFO L124 PetriNetUnfolderBase]: 3557/5588 cut-off events. [2024-06-14 16:02:25,631 INFO L125 PetriNetUnfolderBase]: For 252048/252050 co-relation queries the response was YES. [2024-06-14 16:02:25,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52128 conditions, 5588 events. 3557/5588 cut-off events. For 252048/252050 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 32881 event pairs, 752 based on Foata normal form. 1/5588 useless extension candidates. Maximal degree in co-relation 52018. Up to 5302 conditions per place. [2024-06-14 16:02:25,697 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 386 selfloop transitions, 21 changer transitions 0/412 dead transitions. [2024-06-14 16:02:25,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 412 transitions, 7407 flow [2024-06-14 16:02:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 16:02:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 16:02:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-06-14 16:02:25,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2024-06-14 16:02:25,700 INFO L175 Difference]: Start difference. First operand has 226 places, 389 transitions, 6243 flow. Second operand 7 states and 130 transitions. [2024-06-14 16:02:25,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 412 transitions, 7407 flow [2024-06-14 16:02:26,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 412 transitions, 7085 flow, removed 106 selfloop flow, removed 7 redundant places. [2024-06-14 16:02:26,098 INFO L231 Difference]: Finished difference. Result has 226 places, 395 transitions, 6199 flow [2024-06-14 16:02:26,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=5921, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6199, PETRI_PLACES=226, PETRI_TRANSITIONS=395} [2024-06-14 16:02:26,098 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 183 predicate places. [2024-06-14 16:02:26,098 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 395 transitions, 6199 flow [2024-06-14 16:02:26,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:26,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:02:26,099 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 16:02:26,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-14 16:02:26,099 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 16:02:26,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:02:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash 555198008, now seen corresponding path program 1 times [2024-06-14 16:02:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:02:26,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232660302] [2024-06-14 16:02:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:02:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:02:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:02:35,960 INFO 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 16:02:35,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:02:35,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232660302] [2024-06-14 16:02:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232660302] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:02:35,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:02:35,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:02:35,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914521619] [2024-06-14 16:02:35,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:02:35,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:02:35,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:02:35,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:02:35,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:02:36,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:02:36,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 395 transitions, 6199 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:36,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:02:36,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:02:36,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:02:37,866 INFO L124 PetriNetUnfolderBase]: 3587/5642 cut-off events. [2024-06-14 16:02:37,866 INFO L125 PetriNetUnfolderBase]: For 263284/263284 co-relation queries the response was YES. [2024-06-14 16:02:37,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52348 conditions, 5642 events. 3587/5642 cut-off events. For 263284/263284 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 33268 event pairs, 652 based on Foata normal form. 14/5655 useless extension candidates. Maximal degree in co-relation 52236. Up to 5068 conditions per place. [2024-06-14 16:02:37,935 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 351 selfloop transitions, 77 changer transitions 0/433 dead transitions. [2024-06-14 16:02:37,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 433 transitions, 7539 flow [2024-06-14 16:02:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 16:02:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 16:02:37,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 142 transitions. [2024-06-14 16:02:37,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2024-06-14 16:02:37,936 INFO L175 Difference]: Start difference. First operand has 226 places, 395 transitions, 6199 flow. Second operand 7 states and 142 transitions. [2024-06-14 16:02:37,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 433 transitions, 7539 flow [2024-06-14 16:02:38,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 433 transitions, 7402 flow, removed 62 selfloop flow, removed 3 redundant places. [2024-06-14 16:02:38,363 INFO L231 Difference]: Finished difference. Result has 230 places, 406 transitions, 6480 flow [2024-06-14 16:02:38,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6062, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6480, PETRI_PLACES=230, PETRI_TRANSITIONS=406} [2024-06-14 16:02:38,363 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 187 predicate places. [2024-06-14 16:02:38,364 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 406 transitions, 6480 flow [2024-06-14 16:02:38,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:38,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:02:38,364 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 16:02:38,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-14 16:02:38,364 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:02:38,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:02:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1729281284, now seen corresponding path program 2 times [2024-06-14 16:02:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:02:38,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067323915] [2024-06-14 16:02:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:02:38,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:02:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:02:48,506 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 16:02:48,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:02:48,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067323915] [2024-06-14 16:02:48,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067323915] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:02:48,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:02:48,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 16:02:48,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753517926] [2024-06-14 16:02:48,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:02:48,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 16:02:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:02:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 16:02:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-14 16:02:48,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:02:48,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 406 transitions, 6480 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:48,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:02:48,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:02:48,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:02:50,440 INFO L124 PetriNetUnfolderBase]: 3584/5636 cut-off events. [2024-06-14 16:02:50,440 INFO L125 PetriNetUnfolderBase]: For 261297/261299 co-relation queries the response was YES. [2024-06-14 16:02:50,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52715 conditions, 5636 events. 3584/5636 cut-off events. For 261297/261299 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 33231 event pairs, 754 based on Foata normal form. 1/5636 useless extension candidates. Maximal degree in co-relation 52601. Up to 5356 conditions per place. [2024-06-14 16:02:50,504 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 399 selfloop transitions, 15 changer transitions 0/419 dead transitions. [2024-06-14 16:02:50,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 419 transitions, 7346 flow [2024-06-14 16:02:50,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 16:02:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 16:02:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2024-06-14 16:02:50,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42517006802721086 [2024-06-14 16:02:50,505 INFO L175 Difference]: Start difference. First operand has 230 places, 406 transitions, 6480 flow. Second operand 7 states and 125 transitions. [2024-06-14 16:02:50,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 419 transitions, 7346 flow [2024-06-14 16:02:50,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 419 transitions, 7156 flow, removed 57 selfloop flow, removed 4 redundant places. [2024-06-14 16:02:50,845 INFO L231 Difference]: Finished difference. Result has 233 places, 406 transitions, 6326 flow [2024-06-14 16:02:50,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6290, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6326, PETRI_PLACES=233, PETRI_TRANSITIONS=406} [2024-06-14 16:02:50,846 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 190 predicate places. [2024-06-14 16:02:50,846 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 406 transitions, 6326 flow [2024-06-14 16:02:50,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:02:50,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:02:50,846 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 16:02:50,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-14 16:02:50,846 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:02:50,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:02:50,847 INFO L85 PathProgramCache]: Analyzing trace with hash 555435158, now seen corresponding path program 2 times [2024-06-14 16:02:50,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:02:50,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428956117] [2024-06-14 16:02:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:02:50,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:02:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:03:00,580 INFO 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 16:03:00,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:03:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428956117] [2024-06-14 16:03:00,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428956117] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:03:00,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:03:00,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-14 16:03:00,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480483007] [2024-06-14 16:03:00,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:03:00,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-14 16:03:00,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:03:00,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-14 16:03:00,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-14 16:03:00,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:03:00,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 406 transitions, 6326 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:00,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:03:00,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:03:00,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:03:02,365 INFO L124 PetriNetUnfolderBase]: 3496/5489 cut-off events. [2024-06-14 16:03:02,365 INFO L125 PetriNetUnfolderBase]: For 262927/262927 co-relation queries the response was YES. [2024-06-14 16:03:02,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50864 conditions, 5489 events. 3496/5489 cut-off events. For 262927/262927 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 32050 event pairs, 705 based on Foata normal form. 10/5498 useless extension candidates. Maximal degree in co-relation 50749. Up to 5163 conditions per place. [2024-06-14 16:03:02,435 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 386 selfloop transitions, 35 changer transitions 0/426 dead transitions. [2024-06-14 16:03:02,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 426 transitions, 7271 flow [2024-06-14 16:03:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 16:03:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 16:03:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-14 16:03:02,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 16:03:02,436 INFO L175 Difference]: Start difference. First operand has 233 places, 406 transitions, 6326 flow. Second operand 7 states and 133 transitions. [2024-06-14 16:03:02,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 426 transitions, 7271 flow [2024-06-14 16:03:02,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 426 transitions, 7206 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-06-14 16:03:02,822 INFO L231 Difference]: Finished difference. Result has 235 places, 406 transitions, 6346 flow [2024-06-14 16:03:02,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6261, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6346, PETRI_PLACES=235, PETRI_TRANSITIONS=406} [2024-06-14 16:03:02,823 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 192 predicate places. [2024-06-14 16:03:02,823 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 406 transitions, 6346 flow [2024-06-14 16:03:02,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:02,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:03:02,823 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 16:03:02,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-14 16:03:02,823 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 16:03:02,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:03:02,823 INFO L85 PathProgramCache]: Analyzing trace with hash 555444086, now seen corresponding path program 1 times [2024-06-14 16:03:02,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:03:02,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074643602] [2024-06-14 16:03:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:03:02,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:03:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:03:14,794 INFO 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 16:03:14,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:03:14,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074643602] [2024-06-14 16:03:14,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074643602] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:03:14,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:03:14,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-14 16:03:14,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335458609] [2024-06-14 16:03:14,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:03:14,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-14 16:03:14,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:03:14,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-14 16:03:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-14 16:03:14,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:03:14,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 406 transitions, 6346 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 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 16:03:14,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:03:14,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:03:14,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:03:16,633 INFO L124 PetriNetUnfolderBase]: 3535/5549 cut-off events. [2024-06-14 16:03:16,633 INFO L125 PetriNetUnfolderBase]: For 274655/274655 co-relation queries the response was YES. [2024-06-14 16:03:16,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51423 conditions, 5549 events. 3535/5549 cut-off events. For 274655/274655 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 32499 event pairs, 734 based on Foata normal form. 14/5558 useless extension candidates. Maximal degree in co-relation 51307. Up to 5098 conditions per place. [2024-06-14 16:03:16,700 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 363 selfloop transitions, 55 changer transitions 0/423 dead transitions. [2024-06-14 16:03:16,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 423 transitions, 7358 flow [2024-06-14 16:03:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 16:03:16,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 16:03:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2024-06-14 16:03:16,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-06-14 16:03:16,701 INFO L175 Difference]: Start difference. First operand has 235 places, 406 transitions, 6346 flow. Second operand 6 states and 119 transitions. [2024-06-14 16:03:16,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 423 transitions, 7358 flow [2024-06-14 16:03:17,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 423 transitions, 7153 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-06-14 16:03:17,057 INFO L231 Difference]: Finished difference. Result has 233 places, 408 transitions, 6307 flow [2024-06-14 16:03:17,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6141, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6307, PETRI_PLACES=233, PETRI_TRANSITIONS=408} [2024-06-14 16:03:17,058 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 190 predicate places. [2024-06-14 16:03:17,058 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 408 transitions, 6307 flow [2024-06-14 16:03:17,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 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 16:03:17,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:03:17,058 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 16:03:17,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-14 16:03:17,059 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:03:17,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:03:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1854826276, now seen corresponding path program 1 times [2024-06-14 16:03:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:03:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466963365] [2024-06-14 16:03:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:03:17,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:03:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:03:26,235 INFO 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 16:03:26,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:03:26,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466963365] [2024-06-14 16:03:26,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466963365] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:03:26,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:03:26,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:03:26,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917495309] [2024-06-14 16:03:26,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:03:26,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:03:26,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:03:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:03:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:03:26,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:03:26,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 408 transitions, 6307 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:26,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:03:26,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:03:26,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:03:28,453 INFO L124 PetriNetUnfolderBase]: 3620/5683 cut-off events. [2024-06-14 16:03:28,454 INFO L125 PetriNetUnfolderBase]: For 281121/281121 co-relation queries the response was YES. [2024-06-14 16:03:28,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52576 conditions, 5683 events. 3620/5683 cut-off events. For 281121/281121 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33444 event pairs, 548 based on Foata normal form. 14/5696 useless extension candidates. Maximal degree in co-relation 52460. Up to 5062 conditions per place. [2024-06-14 16:03:28,522 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 401 selfloop transitions, 57 changer transitions 0/463 dead transitions. [2024-06-14 16:03:28,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 463 transitions, 7737 flow [2024-06-14 16:03:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:03:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:03:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2024-06-14 16:03:28,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2024-06-14 16:03:28,523 INFO L175 Difference]: Start difference. First operand has 233 places, 408 transitions, 6307 flow. Second operand 9 states and 188 transitions. [2024-06-14 16:03:28,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 463 transitions, 7737 flow [2024-06-14 16:03:28,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 463 transitions, 7599 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-14 16:03:28,930 INFO L231 Difference]: Finished difference. Result has 240 places, 421 transitions, 6623 flow [2024-06-14 16:03:28,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6169, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6623, PETRI_PLACES=240, PETRI_TRANSITIONS=421} [2024-06-14 16:03:28,931 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 197 predicate places. [2024-06-14 16:03:28,931 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 421 transitions, 6623 flow [2024-06-14 16:03:28,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:28,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:03:28,931 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 16:03:28,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-14 16:03:28,931 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 16:03:28,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:03:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -204829092, now seen corresponding path program 2 times [2024-06-14 16:03:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:03:28,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303623995] [2024-06-14 16:03:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:03:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:03:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:03:37,187 INFO 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 16:03:37,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:03:37,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303623995] [2024-06-14 16:03:37,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303623995] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:03:37,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:03:37,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:03:37,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171646827] [2024-06-14 16:03:37,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:03:37,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:03:37,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:03:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:03:37,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:03:37,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:03:37,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 421 transitions, 6623 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:37,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:03:37,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:03:37,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:03:39,563 INFO L124 PetriNetUnfolderBase]: 3846/6043 cut-off events. [2024-06-14 16:03:39,563 INFO L125 PetriNetUnfolderBase]: For 320510/320512 co-relation queries the response was YES. [2024-06-14 16:03:39,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56919 conditions, 6043 events. 3846/6043 cut-off events. For 320510/320512 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 35795 event pairs, 747 based on Foata normal form. 16/6058 useless extension candidates. Maximal degree in co-relation 56800. Up to 5381 conditions per place. [2024-06-14 16:03:39,641 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 421 selfloop transitions, 64 changer transitions 0/490 dead transitions. [2024-06-14 16:03:39,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 490 transitions, 8637 flow [2024-06-14 16:03:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:03:39,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:03:39,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 218 transitions. [2024-06-14 16:03:39,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47186147186147187 [2024-06-14 16:03:39,642 INFO L175 Difference]: Start difference. First operand has 240 places, 421 transitions, 6623 flow. Second operand 11 states and 218 transitions. [2024-06-14 16:03:39,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 490 transitions, 8637 flow [2024-06-14 16:03:40,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 490 transitions, 8413 flow, removed 77 selfloop flow, removed 4 redundant places. [2024-06-14 16:03:40,161 INFO L231 Difference]: Finished difference. Result has 252 places, 446 transitions, 7225 flow [2024-06-14 16:03:40,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=6412, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7225, PETRI_PLACES=252, PETRI_TRANSITIONS=446} [2024-06-14 16:03:40,161 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 209 predicate places. [2024-06-14 16:03:40,161 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 446 transitions, 7225 flow [2024-06-14 16:03:40,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:40,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:03:40,162 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 16:03:40,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-14 16:03:40,162 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 16:03:40,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:03:40,162 INFO L85 PathProgramCache]: Analyzing trace with hash -259627914, now seen corresponding path program 3 times [2024-06-14 16:03:40,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:03:40,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437142950] [2024-06-14 16:03:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:03:40,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:03:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:03:49,130 INFO 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 16:03:49,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:03:49,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437142950] [2024-06-14 16:03:49,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437142950] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:03:49,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:03:49,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:03:49,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103361359] [2024-06-14 16:03:49,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:03:49,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:03:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:03:49,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:03:49,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:03:49,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:03:49,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 446 transitions, 7225 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:49,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:03:49,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:03:49,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:03:51,471 INFO L124 PetriNetUnfolderBase]: 3923/6168 cut-off events. [2024-06-14 16:03:51,471 INFO L125 PetriNetUnfolderBase]: For 336172/336172 co-relation queries the response was YES. [2024-06-14 16:03:51,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58615 conditions, 6168 events. 3923/6168 cut-off events. For 336172/336172 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 36715 event pairs, 735 based on Foata normal form. 16/6183 useless extension candidates. Maximal degree in co-relation 58489. Up to 5534 conditions per place. [2024-06-14 16:03:51,554 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 443 selfloop transitions, 51 changer transitions 0/499 dead transitions. [2024-06-14 16:03:51,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 499 transitions, 8786 flow [2024-06-14 16:03:51,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:03:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:03:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 204 transitions. [2024-06-14 16:03:51,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-06-14 16:03:51,555 INFO L175 Difference]: Start difference. First operand has 252 places, 446 transitions, 7225 flow. Second operand 10 states and 204 transitions. [2024-06-14 16:03:51,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 499 transitions, 8786 flow [2024-06-14 16:03:52,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 499 transitions, 8626 flow, removed 64 selfloop flow, removed 3 redundant places. [2024-06-14 16:03:52,239 INFO L231 Difference]: Finished difference. Result has 260 places, 456 transitions, 7478 flow [2024-06-14 16:03:52,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=7065, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7478, PETRI_PLACES=260, PETRI_TRANSITIONS=456} [2024-06-14 16:03:52,240 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 217 predicate places. [2024-06-14 16:03:52,240 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 456 transitions, 7478 flow [2024-06-14 16:03:52,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:03:52,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:03:52,240 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 16:03:52,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-14 16:03:52,241 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 16:03:52,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:03:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash -204681222, now seen corresponding path program 4 times [2024-06-14 16:03:52,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:03:52,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447311791] [2024-06-14 16:03:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:03:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:03:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:04:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:04:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:04:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447311791] [2024-06-14 16:04:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447311791] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:04:01,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:04:01,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:04:01,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254836558] [2024-06-14 16:04:01,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:04:01,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:04:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:04:01,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:04:01,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:04:01,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:04:01,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 456 transitions, 7478 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:01,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:04:01,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:04:01,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:04:04,136 INFO L124 PetriNetUnfolderBase]: 3904/6141 cut-off events. [2024-06-14 16:04:04,136 INFO L125 PetriNetUnfolderBase]: For 335365/335365 co-relation queries the response was YES. [2024-06-14 16:04:04,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58040 conditions, 6141 events. 3904/6141 cut-off events. For 335365/335365 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 36455 event pairs, 766 based on Foata normal form. 20/6160 useless extension candidates. Maximal degree in co-relation 57910. Up to 5598 conditions per place. [2024-06-14 16:04:04,210 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 418 selfloop transitions, 78 changer transitions 0/501 dead transitions. [2024-06-14 16:04:04,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 501 transitions, 8803 flow [2024-06-14 16:04:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:04:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:04:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 205 transitions. [2024-06-14 16:04:04,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-06-14 16:04:04,211 INFO L175 Difference]: Start difference. First operand has 260 places, 456 transitions, 7478 flow. Second operand 10 states and 205 transitions. [2024-06-14 16:04:04,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 501 transitions, 8803 flow [2024-06-14 16:04:04,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 501 transitions, 8538 flow, removed 119 selfloop flow, removed 4 redundant places. [2024-06-14 16:04:04,828 INFO L231 Difference]: Finished difference. Result has 266 places, 459 transitions, 7488 flow [2024-06-14 16:04:04,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=7225, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7488, PETRI_PLACES=266, PETRI_TRANSITIONS=459} [2024-06-14 16:04:04,828 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 223 predicate places. [2024-06-14 16:04:04,828 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 459 transitions, 7488 flow [2024-06-14 16:04:04,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:04,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:04:04,829 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 16:04:04,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-14 16:04:04,829 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 16:04:04,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:04:04,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1093748320, now seen corresponding path program 1 times [2024-06-14 16:04:04,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:04:04,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400476076] [2024-06-14 16:04:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:04:04,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:04:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:04:14,125 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 16:04:14,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:04:14,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400476076] [2024-06-14 16:04:14,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400476076] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:04:14,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:04:14,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:04:14,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989281838] [2024-06-14 16:04:14,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:04:14,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:04:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:04:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:04:14,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:04:14,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:04:14,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 459 transitions, 7488 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:14,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:04:14,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:04:14,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:04:17,135 INFO L124 PetriNetUnfolderBase]: 4495/7138 cut-off events. [2024-06-14 16:04:17,135 INFO L125 PetriNetUnfolderBase]: For 464948/464948 co-relation queries the response was YES. [2024-06-14 16:04:17,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68051 conditions, 7138 events. 4495/7138 cut-off events. For 464948/464948 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 43919 event pairs, 926 based on Foata normal form. 48/7185 useless extension candidates. Maximal degree in co-relation 67919. Up to 5545 conditions per place. [2024-06-14 16:04:17,229 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 448 selfloop transitions, 61 changer transitions 5/519 dead transitions. [2024-06-14 16:04:17,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 519 transitions, 9330 flow [2024-06-14 16:04:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:04:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:04:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 229 transitions. [2024-06-14 16:04:17,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49567099567099565 [2024-06-14 16:04:17,231 INFO L175 Difference]: Start difference. First operand has 266 places, 459 transitions, 7488 flow. Second operand 11 states and 229 transitions. [2024-06-14 16:04:17,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 519 transitions, 9330 flow [2024-06-14 16:04:18,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 519 transitions, 9138 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-06-14 16:04:18,044 INFO L231 Difference]: Finished difference. Result has 270 places, 464 transitions, 7698 flow [2024-06-14 16:04:18,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=7296, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7698, PETRI_PLACES=270, PETRI_TRANSITIONS=464} [2024-06-14 16:04:18,044 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 227 predicate places. [2024-06-14 16:04:18,044 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 464 transitions, 7698 flow [2024-06-14 16:04:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:18,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:04:18,044 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 16:04:18,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-14 16:04:18,045 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:04:18,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:04:18,045 INFO L85 PathProgramCache]: Analyzing trace with hash 120883002, now seen corresponding path program 2 times [2024-06-14 16:04:18,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:04:18,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657562087] [2024-06-14 16:04:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:04:18,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:04:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:04:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:04:28,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:04:28,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657562087] [2024-06-14 16:04:28,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657562087] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:04:28,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:04:28,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:04:28,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133252937] [2024-06-14 16:04:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:04:28,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:04:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:04:28,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:04:28,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:04:28,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:04:28,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 464 transitions, 7698 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:28,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:04:28,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:04:28,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:04:31,020 INFO L124 PetriNetUnfolderBase]: 4437/7032 cut-off events. [2024-06-14 16:04:31,020 INFO L125 PetriNetUnfolderBase]: For 417890/417892 co-relation queries the response was YES. [2024-06-14 16:04:31,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67110 conditions, 7032 events. 4437/7032 cut-off events. For 417890/417892 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 43179 event pairs, 1092 based on Foata normal form. 16/7047 useless extension candidates. Maximal degree in co-relation 66976. Up to 6453 conditions per place. [2024-06-14 16:04:31,253 INFO L140 encePairwiseOnDemand]: 30/42 looper letters, 462 selfloop transitions, 61 changer transitions 0/528 dead transitions. [2024-06-14 16:04:31,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 528 transitions, 9484 flow [2024-06-14 16:04:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:04:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:04:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2024-06-14 16:04:31,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-06-14 16:04:31,256 INFO L175 Difference]: Start difference. First operand has 270 places, 464 transitions, 7698 flow. Second operand 10 states and 190 transitions. [2024-06-14 16:04:31,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 528 transitions, 9484 flow [2024-06-14 16:04:31,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 528 transitions, 9291 flow, removed 51 selfloop flow, removed 7 redundant places. [2024-06-14 16:04:31,926 INFO L231 Difference]: Finished difference. Result has 279 places, 489 transitions, 8277 flow [2024-06-14 16:04:31,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=7529, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8277, PETRI_PLACES=279, PETRI_TRANSITIONS=489} [2024-06-14 16:04:31,929 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 236 predicate places. [2024-06-14 16:04:31,929 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 489 transitions, 8277 flow [2024-06-14 16:04:31,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:31,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:04:31,929 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 16:04:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-14 16:04:31,930 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:04:31,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:04:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash -378378924, now seen corresponding path program 3 times [2024-06-14 16:04:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:04:31,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342565468] [2024-06-14 16:04:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:04:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:04:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:04:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:04:41,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:04:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342565468] [2024-06-14 16:04:41,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342565468] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:04:41,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:04:41,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:04:41,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467567924] [2024-06-14 16:04:41,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:04:41,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:04:41,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:04:41,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:04:41,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:04:41,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:04:41,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 489 transitions, 8277 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:41,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:04:41,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:04:41,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:04:44,520 INFO L124 PetriNetUnfolderBase]: 4632/7357 cut-off events. [2024-06-14 16:04:44,520 INFO L125 PetriNetUnfolderBase]: For 487933/487933 co-relation queries the response was YES. [2024-06-14 16:04:44,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70052 conditions, 7357 events. 4632/7357 cut-off events. For 487933/487933 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 45536 event pairs, 1134 based on Foata normal form. 58/7414 useless extension candidates. Maximal degree in co-relation 69910. Up to 6580 conditions per place. [2024-06-14 16:04:44,623 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 457 selfloop transitions, 76 changer transitions 5/543 dead transitions. [2024-06-14 16:04:44,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 543 transitions, 9767 flow [2024-06-14 16:04:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-14 16:04:44,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-14 16:04:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 237 transitions. [2024-06-14 16:04:44,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47023809523809523 [2024-06-14 16:04:44,624 INFO L175 Difference]: Start difference. First operand has 279 places, 489 transitions, 8277 flow. Second operand 12 states and 237 transitions. [2024-06-14 16:04:44,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 543 transitions, 9767 flow [2024-06-14 16:04:45,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 543 transitions, 9708 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-06-14 16:04:45,431 INFO L231 Difference]: Finished difference. Result has 291 places, 494 transitions, 8553 flow [2024-06-14 16:04:45,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=8218, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8553, PETRI_PLACES=291, PETRI_TRANSITIONS=494} [2024-06-14 16:04:45,432 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 248 predicate places. [2024-06-14 16:04:45,432 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 494 transitions, 8553 flow [2024-06-14 16:04:45,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:45,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:04:45,432 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 16:04:45,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-14 16:04:45,432 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:04:45,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:04:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1859586226, now seen corresponding path program 5 times [2024-06-14 16:04:45,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:04:45,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938978422] [2024-06-14 16:04:45,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:04:45,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:04:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:04:54,127 INFO 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 16:04:54,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:04:54,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938978422] [2024-06-14 16:04:54,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938978422] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:04:54,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:04:54,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:04:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742674595] [2024-06-14 16:04:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:04:54,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:04:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:04:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:04:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:04:54,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:04:54,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 494 transitions, 8553 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:54,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:04:54,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:04:54,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:04:56,917 INFO L124 PetriNetUnfolderBase]: 4717/7478 cut-off events. [2024-06-14 16:04:56,917 INFO L125 PetriNetUnfolderBase]: For 467563/467563 co-relation queries the response was YES. [2024-06-14 16:04:56,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72048 conditions, 7478 events. 4717/7478 cut-off events. For 467563/467563 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 46338 event pairs, 1143 based on Foata normal form. 16/7492 useless extension candidates. Maximal degree in co-relation 71902. Up to 6603 conditions per place. [2024-06-14 16:04:57,024 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 427 selfloop transitions, 113 changer transitions 0/545 dead transitions. [2024-06-14 16:04:57,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 545 transitions, 10337 flow [2024-06-14 16:04:57,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:04:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:04:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 191 transitions. [2024-06-14 16:04:57,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052910052910053 [2024-06-14 16:04:57,025 INFO L175 Difference]: Start difference. First operand has 291 places, 494 transitions, 8553 flow. Second operand 9 states and 191 transitions. [2024-06-14 16:04:57,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 545 transitions, 10337 flow [2024-06-14 16:04:58,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 545 transitions, 10146 flow, removed 41 selfloop flow, removed 7 redundant places. [2024-06-14 16:04:58,095 INFO L231 Difference]: Finished difference. Result has 294 places, 504 transitions, 9011 flow [2024-06-14 16:04:58,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=8362, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9011, PETRI_PLACES=294, PETRI_TRANSITIONS=504} [2024-06-14 16:04:58,096 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 251 predicate places. [2024-06-14 16:04:58,096 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 504 transitions, 9011 flow [2024-06-14 16:04:58,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:04:58,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:04:58,096 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 16:04:58,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-14 16:04:58,096 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:04:58,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:04:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1660284436, now seen corresponding path program 6 times [2024-06-14 16:04:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:04:58,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312833921] [2024-06-14 16:04:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:04:58,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:04:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:05:08,616 INFO 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 16:05:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:05:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312833921] [2024-06-14 16:05:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312833921] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:05:08,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:05:08,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:05:08,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250038414] [2024-06-14 16:05:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:05:08,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:05:08,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:05:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:05:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:05:08,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:05:08,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 504 transitions, 9011 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:08,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:05:08,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:05:08,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:05:11,517 INFO L124 PetriNetUnfolderBase]: 4778/7582 cut-off events. [2024-06-14 16:05:11,517 INFO L125 PetriNetUnfolderBase]: For 485105/485105 co-relation queries the response was YES. [2024-06-14 16:05:11,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74010 conditions, 7582 events. 4778/7582 cut-off events. For 485105/485105 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 47176 event pairs, 1149 based on Foata normal form. 16/7597 useless extension candidates. Maximal degree in co-relation 73863. Up to 6797 conditions per place. [2024-06-14 16:05:11,623 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 448 selfloop transitions, 98 changer transitions 0/551 dead transitions. [2024-06-14 16:05:11,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 551 transitions, 10611 flow [2024-06-14 16:05:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:05:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:05:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 211 transitions. [2024-06-14 16:05:11,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5023809523809524 [2024-06-14 16:05:11,624 INFO L175 Difference]: Start difference. First operand has 294 places, 504 transitions, 9011 flow. Second operand 10 states and 211 transitions. [2024-06-14 16:05:11,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 551 transitions, 10611 flow [2024-06-14 16:05:12,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 551 transitions, 10418 flow, removed 64 selfloop flow, removed 5 redundant places. [2024-06-14 16:05:12,532 INFO L231 Difference]: Finished difference. Result has 299 places, 507 transitions, 9187 flow [2024-06-14 16:05:12,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=8818, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9187, PETRI_PLACES=299, PETRI_TRANSITIONS=507} [2024-06-14 16:05:12,533 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 256 predicate places. [2024-06-14 16:05:12,533 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 507 transitions, 9187 flow [2024-06-14 16:05:12,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:12,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:05:12,533 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 16:05:12,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-14 16:05:12,533 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:05:12,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:05:12,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1660136566, now seen corresponding path program 7 times [2024-06-14 16:05:12,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:05:12,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263484673] [2024-06-14 16:05:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:05:12,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:05:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:05:21,921 INFO 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 16:05:21,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:05:21,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263484673] [2024-06-14 16:05:21,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263484673] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:05:21,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:05:21,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:05:21,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550308582] [2024-06-14 16:05:21,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:05:21,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:05:21,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:05:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:05:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:05:22,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2024-06-14 16:05:22,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 507 transitions, 9187 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 16:05:22,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:05:22,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2024-06-14 16:05:22,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:05:25,017 INFO L124 PetriNetUnfolderBase]: 4980/7896 cut-off events. [2024-06-14 16:05:25,017 INFO L125 PetriNetUnfolderBase]: For 534386/534386 co-relation queries the response was YES. [2024-06-14 16:05:25,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78459 conditions, 7896 events. 4980/7896 cut-off events. For 534386/534386 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 49600 event pairs, 1157 based on Foata normal form. 16/7911 useless extension candidates. Maximal degree in co-relation 78310. Up to 6787 conditions per place. [2024-06-14 16:05:25,135 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 452 selfloop transitions, 108 changer transitions 0/565 dead transitions. [2024-06-14 16:05:25,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 565 transitions, 11295 flow [2024-06-14 16:05:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:05:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:05:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 206 transitions. [2024-06-14 16:05:25,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045 [2024-06-14 16:05:25,136 INFO L175 Difference]: Start difference. First operand has 299 places, 507 transitions, 9187 flow. Second operand 10 states and 206 transitions. [2024-06-14 16:05:25,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 565 transitions, 11295 flow [2024-06-14 16:05:26,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 565 transitions, 10992 flow, removed 62 selfloop flow, removed 7 redundant places. [2024-06-14 16:05:26,173 INFO L231 Difference]: Finished difference. Result has 303 places, 515 transitions, 9505 flow [2024-06-14 16:05:26,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=8884, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9505, PETRI_PLACES=303, PETRI_TRANSITIONS=515} [2024-06-14 16:05:26,173 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 260 predicate places. [2024-06-14 16:05:26,173 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 515 transitions, 9505 flow [2024-06-14 16:05:26,173 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 16:05:26,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:05:26,173 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 16:05:26,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-14 16:05:26,174 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:05:26,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:05:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash -751526832, now seen corresponding path program 8 times [2024-06-14 16:05:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:05:26,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709148920] [2024-06-14 16:05:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:05:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:05:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:05:34,662 INFO 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 16:05:34,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:05:34,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709148920] [2024-06-14 16:05:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709148920] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:05:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:05:34,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-14 16:05:34,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358540549] [2024-06-14 16:05:34,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:05:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-14 16:05:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:05:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-14 16:05:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-14 16:05:34,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:05:34,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 515 transitions, 9505 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:34,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:05:34,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:05:34,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:05:37,558 INFO L124 PetriNetUnfolderBase]: 4957/7854 cut-off events. [2024-06-14 16:05:37,558 INFO L125 PetriNetUnfolderBase]: For 527362/527362 co-relation queries the response was YES. [2024-06-14 16:05:37,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77691 conditions, 7854 events. 4957/7854 cut-off events. For 527362/527362 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 49174 event pairs, 1189 based on Foata normal form. 16/7868 useless extension candidates. Maximal degree in co-relation 77540. Up to 6963 conditions per place. [2024-06-14 16:05:37,674 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 432 selfloop transitions, 120 changer transitions 0/557 dead transitions. [2024-06-14 16:05:37,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 557 transitions, 11051 flow [2024-06-14 16:05:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 16:05:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 16:05:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 189 transitions. [2024-06-14 16:05:37,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-14 16:05:37,675 INFO L175 Difference]: Start difference. First operand has 303 places, 515 transitions, 9505 flow. Second operand 9 states and 189 transitions. [2024-06-14 16:05:37,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 557 transitions, 11051 flow [2024-06-14 16:05:38,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 557 transitions, 10664 flow, removed 133 selfloop flow, removed 6 redundant places. [2024-06-14 16:05:38,901 INFO L231 Difference]: Finished difference. Result has 307 places, 517 transitions, 9491 flow [2024-06-14 16:05:38,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=9146, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9491, PETRI_PLACES=307, PETRI_TRANSITIONS=517} [2024-06-14 16:05:38,901 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 264 predicate places. [2024-06-14 16:05:38,901 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 517 transitions, 9491 flow [2024-06-14 16:05:38,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:38,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:05:38,902 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 16:05:38,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-14 16:05:38,902 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:05:38,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:05:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1263263904, now seen corresponding path program 4 times [2024-06-14 16:05:38,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:05:38,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699913417] [2024-06-14 16:05:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:05:38,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:05:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:05:48,370 INFO 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 16:05:48,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:05:48,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699913417] [2024-06-14 16:05:48,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699913417] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:05:48,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:05:48,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:05:48,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608424283] [2024-06-14 16:05:48,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:05:48,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:05:48,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:05:48,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:05:48,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:05:48,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:05:48,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 517 transitions, 9491 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:48,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:05:48,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:05:48,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:05:51,967 INFO L124 PetriNetUnfolderBase]: 5291/8417 cut-off events. [2024-06-14 16:05:51,968 INFO L125 PetriNetUnfolderBase]: For 625250/625252 co-relation queries the response was YES. [2024-06-14 16:05:52,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83099 conditions, 8417 events. 5291/8417 cut-off events. For 625250/625252 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 53570 event pairs, 1261 based on Foata normal form. 59/8475 useless extension candidates. Maximal degree in co-relation 82945. Up to 6974 conditions per place. [2024-06-14 16:05:52,091 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 404 selfloop transitions, 192 changer transitions 0/601 dead transitions. [2024-06-14 16:05:52,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 601 transitions, 12296 flow [2024-06-14 16:05:52,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:05:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:05:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 239 transitions. [2024-06-14 16:05:52,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5173160173160173 [2024-06-14 16:05:52,093 INFO L175 Difference]: Start difference. First operand has 307 places, 517 transitions, 9491 flow. Second operand 11 states and 239 transitions. [2024-06-14 16:05:52,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 601 transitions, 12296 flow [2024-06-14 16:05:53,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 601 transitions, 12140 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-06-14 16:05:53,179 INFO L231 Difference]: Finished difference. Result has 317 places, 548 transitions, 10868 flow [2024-06-14 16:05:53,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=9335, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10868, PETRI_PLACES=317, PETRI_TRANSITIONS=548} [2024-06-14 16:05:53,180 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 274 predicate places. [2024-06-14 16:05:53,180 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 548 transitions, 10868 flow [2024-06-14 16:05:53,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:05:53,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:05:53,180 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 16:05:53,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-14 16:05:53,181 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:05:53,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:05:53,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1825391422, now seen corresponding path program 5 times [2024-06-14 16:05:53,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:05:53,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397029294] [2024-06-14 16:05:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:05:53,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:05:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:06:03,210 INFO 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 16:06:03,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:06:03,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397029294] [2024-06-14 16:06:03,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397029294] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:06:03,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:06:03,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:06:03,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030820469] [2024-06-14 16:06:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:06:03,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:06:03,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:06:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:06:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:06:03,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:06:03,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 548 transitions, 10868 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:03,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:06:03,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:06:03,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:06:07,327 INFO L124 PetriNetUnfolderBase]: 5911/9492 cut-off events. [2024-06-14 16:06:07,327 INFO L125 PetriNetUnfolderBase]: For 843537/843539 co-relation queries the response was YES. [2024-06-14 16:06:07,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100009 conditions, 9492 events. 5911/9492 cut-off events. For 843537/843539 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 62161 event pairs, 1132 based on Foata normal form. 48/9539 useless extension candidates. Maximal degree in co-relation 99850. Up to 4187 conditions per place. [2024-06-14 16:06:07,673 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 367 selfloop transitions, 256 changer transitions 0/628 dead transitions. [2024-06-14 16:06:07,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 628 transitions, 13824 flow [2024-06-14 16:06:07,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:06:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:06:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 247 transitions. [2024-06-14 16:06:07,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5346320346320347 [2024-06-14 16:06:07,675 INFO L175 Difference]: Start difference. First operand has 317 places, 548 transitions, 10868 flow. Second operand 11 states and 247 transitions. [2024-06-14 16:06:07,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 628 transitions, 13824 flow [2024-06-14 16:06:09,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 628 transitions, 13436 flow, removed 169 selfloop flow, removed 3 redundant places. [2024-06-14 16:06:09,191 INFO L231 Difference]: Finished difference. Result has 328 places, 558 transitions, 11591 flow [2024-06-14 16:06:09,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=10480, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11591, PETRI_PLACES=328, PETRI_TRANSITIONS=558} [2024-06-14 16:06:09,192 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 285 predicate places. [2024-06-14 16:06:09,192 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 558 transitions, 11591 flow [2024-06-14 16:06:09,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:09,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:06:09,192 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 16:06:09,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-14 16:06:09,193 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:06:09,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:06:09,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1263530814, now seen corresponding path program 6 times [2024-06-14 16:06:09,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:06:09,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206164926] [2024-06-14 16:06:09,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:06:09,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:06:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:06:19,673 INFO 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 16:06:19,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:06:19,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206164926] [2024-06-14 16:06:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206164926] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:06:19,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:06:19,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:06:19,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764001122] [2024-06-14 16:06:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:06:19,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:06:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:06:19,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:06:19,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:06:19,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:06:19,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 558 transitions, 11591 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:19,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:06:19,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:06:19,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:06:24,423 INFO L124 PetriNetUnfolderBase]: 6495/10514 cut-off events. [2024-06-14 16:06:24,423 INFO L125 PetriNetUnfolderBase]: For 1002080/1002080 co-relation queries the response was YES. [2024-06-14 16:06:24,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113997 conditions, 10514 events. 6495/10514 cut-off events. For 1002080/1002080 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 71368 event pairs, 1753 based on Foata normal form. 48/10561 useless extension candidates. Maximal degree in co-relation 113833. Up to 8327 conditions per place. [2024-06-14 16:06:24,579 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 502 selfloop transitions, 117 changer transitions 0/624 dead transitions. [2024-06-14 16:06:24,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 624 transitions, 13913 flow [2024-06-14 16:06:24,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:06:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:06:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 239 transitions. [2024-06-14 16:06:24,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5173160173160173 [2024-06-14 16:06:24,581 INFO L175 Difference]: Start difference. First operand has 328 places, 558 transitions, 11591 flow. Second operand 11 states and 239 transitions. [2024-06-14 16:06:24,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 624 transitions, 13913 flow [2024-06-14 16:06:26,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 624 transitions, 13543 flow, removed 83 selfloop flow, removed 5 redundant places. [2024-06-14 16:06:26,461 INFO L231 Difference]: Finished difference. Result has 334 places, 562 transitions, 11760 flow [2024-06-14 16:06:26,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=11233, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11760, PETRI_PLACES=334, PETRI_TRANSITIONS=562} [2024-06-14 16:06:26,462 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 291 predicate places. [2024-06-14 16:06:26,462 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 562 transitions, 11760 flow [2024-06-14 16:06:26,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:26,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:06:26,462 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 16:06:26,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-14 16:06:26,463 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 16:06:26,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:06:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1255912254, now seen corresponding path program 7 times [2024-06-14 16:06:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:06:26,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849476548] [2024-06-14 16:06:26,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:06:26,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:06:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:06:36,931 INFO 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 16:06:36,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:06:36,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849476548] [2024-06-14 16:06:36,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849476548] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:06:36,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:06:36,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:06:36,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826552201] [2024-06-14 16:06:36,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:06:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:06:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:06:36,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:06:36,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:06:37,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:06:37,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 562 transitions, 11760 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:37,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:06:37,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:06:37,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:06:41,267 INFO L124 PetriNetUnfolderBase]: 6415/10372 cut-off events. [2024-06-14 16:06:41,267 INFO L125 PetriNetUnfolderBase]: For 930346/930346 co-relation queries the response was YES. [2024-06-14 16:06:41,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109246 conditions, 10372 events. 6415/10372 cut-off events. For 930346/930346 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 70241 event pairs, 1873 based on Foata normal form. 58/10429 useless extension candidates. Maximal degree in co-relation 109080. Up to 9149 conditions per place. [2024-06-14 16:06:41,742 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 506 selfloop transitions, 102 changer transitions 0/613 dead transitions. [2024-06-14 16:06:41,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 613 transitions, 13402 flow [2024-06-14 16:06:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:06:41,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:06:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 231 transitions. [2024-06-14 16:06:41,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-14 16:06:41,744 INFO L175 Difference]: Start difference. First operand has 334 places, 562 transitions, 11760 flow. Second operand 11 states and 231 transitions. [2024-06-14 16:06:41,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 613 transitions, 13402 flow [2024-06-14 16:06:43,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 613 transitions, 13089 flow, removed 96 selfloop flow, removed 6 redundant places. [2024-06-14 16:06:43,407 INFO L231 Difference]: Finished difference. Result has 339 places, 562 transitions, 11660 flow [2024-06-14 16:06:43,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=11447, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11660, PETRI_PLACES=339, PETRI_TRANSITIONS=562} [2024-06-14 16:06:43,408 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 296 predicate places. [2024-06-14 16:06:43,408 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 562 transitions, 11660 flow [2024-06-14 16:06:43,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:43,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:06:43,408 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 16:06:43,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-14 16:06:43,408 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 16:06:43,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:06:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1859592178, now seen corresponding path program 8 times [2024-06-14 16:06:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:06:43,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816285807] [2024-06-14 16:06:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:06:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:06:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:06:54,573 INFO 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 16:06:54,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:06:54,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816285807] [2024-06-14 16:06:54,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816285807] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:06:54,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:06:54,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:06:54,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240339606] [2024-06-14 16:06:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:06:54,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:06:54,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:06:54,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:06:54,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:06:54,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:06:54,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 562 transitions, 11660 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:06:54,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:06:54,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:06:54,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:06:58,992 INFO L124 PetriNetUnfolderBase]: 6631/10737 cut-off events. [2024-06-14 16:06:58,992 INFO L125 PetriNetUnfolderBase]: For 950714/950714 co-relation queries the response was YES. [2024-06-14 16:06:59,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112207 conditions, 10737 events. 6631/10737 cut-off events. For 950714/950714 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 73355 event pairs, 1960 based on Foata normal form. 58/10794 useless extension candidates. Maximal degree in co-relation 112039. Up to 9577 conditions per place. [2024-06-14 16:06:59,191 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 510 selfloop transitions, 100 changer transitions 5/620 dead transitions. [2024-06-14 16:06:59,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 620 transitions, 13531 flow [2024-06-14 16:06:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:06:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:06:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 233 transitions. [2024-06-14 16:06:59,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5043290043290043 [2024-06-14 16:06:59,192 INFO L175 Difference]: Start difference. First operand has 339 places, 562 transitions, 11660 flow. Second operand 11 states and 233 transitions. [2024-06-14 16:06:59,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 620 transitions, 13531 flow [2024-06-14 16:07:01,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 620 transitions, 13314 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-06-14 16:07:01,361 INFO L231 Difference]: Finished difference. Result has 343 places, 568 transitions, 11867 flow [2024-06-14 16:07:01,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=11443, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11867, PETRI_PLACES=343, PETRI_TRANSITIONS=568} [2024-06-14 16:07:01,361 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 300 predicate places. [2024-06-14 16:07:01,362 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 568 transitions, 11867 flow [2024-06-14 16:07:01,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:01,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:07:01,362 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 16:07:01,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-14 16:07:01,362 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 16:07:01,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:07:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1511692192, now seen corresponding path program 9 times [2024-06-14 16:07:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:07:01,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818853454] [2024-06-14 16:07:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:07:01,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:07:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:07:12,780 INFO 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 16:07:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:07:12,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818853454] [2024-06-14 16:07:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818853454] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:07:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:07:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:07:12,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261695475] [2024-06-14 16:07:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:07:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:07:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:07:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:07:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:07:12,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:07:12,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 568 transitions, 11867 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:12,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:07:12,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:07:12,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:07:17,956 INFO L124 PetriNetUnfolderBase]: 6820/11057 cut-off events. [2024-06-14 16:07:17,956 INFO L125 PetriNetUnfolderBase]: For 970210/970210 co-relation queries the response was YES. [2024-06-14 16:07:18,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117745 conditions, 11057 events. 6820/11057 cut-off events. For 970210/970210 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 76094 event pairs, 1918 based on Foata normal form. 12/11068 useless extension candidates. Maximal degree in co-relation 117575. Up to 9582 conditions per place. [2024-06-14 16:07:18,128 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 464 selfloop transitions, 163 changer transitions 0/632 dead transitions. [2024-06-14 16:07:18,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 632 transitions, 14325 flow [2024-06-14 16:07:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:07:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:07:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 240 transitions. [2024-06-14 16:07:18,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2024-06-14 16:07:18,129 INFO L175 Difference]: Start difference. First operand has 343 places, 568 transitions, 11867 flow. Second operand 11 states and 240 transitions. [2024-06-14 16:07:18,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 632 transitions, 14325 flow [2024-06-14 16:07:20,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 632 transitions, 14024 flow, removed 55 selfloop flow, removed 8 redundant places. [2024-06-14 16:07:20,150 INFO L231 Difference]: Finished difference. Result has 347 places, 579 transitions, 12465 flow [2024-06-14 16:07:20,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=11566, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12465, PETRI_PLACES=347, PETRI_TRANSITIONS=579} [2024-06-14 16:07:20,151 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 304 predicate places. [2024-06-14 16:07:20,151 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 579 transitions, 12465 flow [2024-06-14 16:07:20,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:20,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:07:20,151 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 16:07:20,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-14 16:07:20,151 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:07:20,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:07:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1511425282, now seen corresponding path program 10 times [2024-06-14 16:07:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:07:20,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303105872] [2024-06-14 16:07:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:07:20,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:07:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:07:29,651 INFO 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 16:07:29,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:07:29,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303105872] [2024-06-14 16:07:29,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303105872] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:07:29,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:07:29,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:07:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876325715] [2024-06-14 16:07:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:07:29,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:07:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:07:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:07:29,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:07:29,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:07:29,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 579 transitions, 12465 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:29,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:07:29,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:07:29,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:07:34,514 INFO L124 PetriNetUnfolderBase]: 7000/11361 cut-off events. [2024-06-14 16:07:34,514 INFO L125 PetriNetUnfolderBase]: For 1078996/1078996 co-relation queries the response was YES. [2024-06-14 16:07:34,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121878 conditions, 11361 events. 7000/11361 cut-off events. For 1078996/1078996 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 78527 event pairs, 2007 based on Foata normal form. 65/11420 useless extension candidates. Maximal degree in co-relation 121706. Up to 9129 conditions per place. [2024-06-14 16:07:34,690 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 330 selfloop transitions, 309 changer transitions 0/644 dead transitions. [2024-06-14 16:07:34,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 644 transitions, 15253 flow [2024-06-14 16:07:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 16:07:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 16:07:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 217 transitions. [2024-06-14 16:07:34,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-06-14 16:07:34,693 INFO L175 Difference]: Start difference. First operand has 347 places, 579 transitions, 12465 flow. Second operand 10 states and 217 transitions. [2024-06-14 16:07:34,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 644 transitions, 15253 flow [2024-06-14 16:07:36,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 644 transitions, 14387 flow, removed 304 selfloop flow, removed 7 redundant places. [2024-06-14 16:07:36,885 INFO L231 Difference]: Finished difference. Result has 354 places, 598 transitions, 13430 flow [2024-06-14 16:07:36,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=11675, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=294, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13430, PETRI_PLACES=354, PETRI_TRANSITIONS=598} [2024-06-14 16:07:36,886 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 311 predicate places. [2024-06-14 16:07:36,886 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 598 transitions, 13430 flow [2024-06-14 16:07:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:36,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:07:36,886 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 16:07:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-14 16:07:36,886 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:07:36,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:07:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash -420323424, now seen corresponding path program 11 times [2024-06-14 16:07:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:07:36,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623971980] [2024-06-14 16:07:36,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:07:36,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:07:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:07:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:07:47,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:07:47,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623971980] [2024-06-14 16:07:47,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623971980] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:07:47,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:07:47,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-14 16:07:47,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737615850] [2024-06-14 16:07:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:07:47,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 16:07:47,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:07:47,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 16:07:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-06-14 16:07:47,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2024-06-14 16:07:47,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 598 transitions, 13430 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:47,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:07:47,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2024-06-14 16:07:47,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:07:52,760 INFO L124 PetriNetUnfolderBase]: 7378/12008 cut-off events. [2024-06-14 16:07:52,760 INFO L125 PetriNetUnfolderBase]: For 1225762/1225762 co-relation queries the response was YES. [2024-06-14 16:07:52,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131669 conditions, 12008 events. 7378/12008 cut-off events. For 1225762/1225762 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 84040 event pairs, 2177 based on Foata normal form. 48/12055 useless extension candidates. Maximal degree in co-relation 131492. Up to 9936 conditions per place. [2024-06-14 16:07:52,969 INFO L140 encePairwiseOnDemand]: 27/42 looper letters, 532 selfloop transitions, 119 changer transitions 5/661 dead transitions. [2024-06-14 16:07:52,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 661 transitions, 15858 flow [2024-06-14 16:07:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 16:07:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 16:07:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 240 transitions. [2024-06-14 16:07:52,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2024-06-14 16:07:52,970 INFO L175 Difference]: Start difference. First operand has 354 places, 598 transitions, 13430 flow. Second operand 11 states and 240 transitions. [2024-06-14 16:07:52,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 661 transitions, 15858 flow [2024-06-14 16:07:56,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 661 transitions, 15483 flow, removed 155 selfloop flow, removed 3 redundant places. [2024-06-14 16:07:56,147 INFO L231 Difference]: Finished difference. Result has 362 places, 601 transitions, 13586 flow [2024-06-14 16:07:56,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=13055, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13586, PETRI_PLACES=362, PETRI_TRANSITIONS=601} [2024-06-14 16:07:56,148 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 319 predicate places. [2024-06-14 16:07:56,148 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 601 transitions, 13586 flow [2024-06-14 16:07:56,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 16:07:56,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:07:56,148 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 16:07:56,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-14 16:07:56,148 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 16:07:56,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:07:56,149 INFO L85 PathProgramCache]: Analyzing trace with hash -420590334, now seen corresponding path program 12 times [2024-06-14 16:07:56,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:07:56,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530862032] [2024-06-14 16:07:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:07:56,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:07:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat