./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix001.oepc.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix001.oepc.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb4cb34f 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/mix001.oepc.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix001.oepc.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-eb4cb34-m [2024-06-21 18:18:21,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-21 18:18:21,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-21 18:18:21,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-21 18:18:21,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-21 18:18:21,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-21 18:18:21,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-21 18:18:21,324 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-21 18:18:21,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-21 18:18:21,327 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-21 18:18:21,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-21 18:18:21,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-21 18:18:21,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-21 18:18:21,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-21 18:18:21,330 INFO L153 SettingsManager]: * Use SBE=true [2024-06-21 18:18:21,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-21 18:18:21,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-21 18:18:21,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-21 18:18:21,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-21 18:18:21,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-21 18:18:21,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-21 18:18:21,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-21 18:18:21,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-21 18:18:21,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-21 18:18:21,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-21 18:18:21,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-21 18:18:21,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-21 18:18:21,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-21 18:18:21,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-21 18:18:21,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-21 18:18:21,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-21 18:18:21,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-21 18:18:21,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 18:18:21,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-21 18:18:21,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-21 18:18:21,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-21 18:18:21,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-21 18:18:21,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-21 18:18:21,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-21 18:18:21,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-21 18:18:21,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-21 18:18:21,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-21 18:18:21,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-21 18:18:21,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-21 18:18:21,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-21 18:18:21,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-21 18:18:21,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-21 18:18:21,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-21 18:18:21,579 INFO L274 PluginConnector]: CDTParser initialized [2024-06-21 18:18:21,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix001.oepc.i [2024-06-21 18:18:22,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-21 18:18:22,763 INFO L384 CDTParser]: Found 1 translation units. [2024-06-21 18:18:22,763 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix001.oepc.i [2024-06-21 18:18:22,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c772454b7/1716cb1235454d38b811a31ba1eb95fe/FLAGf0dfbd77f [2024-06-21 18:18:22,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c772454b7/1716cb1235454d38b811a31ba1eb95fe [2024-06-21 18:18:22,785 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-21 18:18:22,785 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-21 18:18:22,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/mix001.oepc.yml/witness.yml [2024-06-21 18:18:22,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-21 18:18:22,861 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-21 18:18:22,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-21 18:18:22,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-21 18:18:22,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-21 18:18:22,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 06:18:22" (1/2) ... [2024-06-21 18:18:22,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6786f92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:18:22, skipping insertion in model container [2024-06-21 18:18:22,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 06:18:22" (1/2) ... [2024-06-21 18:18:22,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c8ee311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 06:18:22, skipping insertion in model container [2024-06-21 18:18:22,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:18:22" (2/2) ... [2024-06-21 18:18:22,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6786f92a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:22, skipping insertion in model container [2024-06-21 18:18:22,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:18:22" (2/2) ... [2024-06-21 18:18:22,870 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-21 18:18:22,896 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-21 18:18:22,898 INFO L97 edCorrectnessWitness]: Location invariant before [L867-L867] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p0_EBX) + (long long )x >= 0LL && (0LL - (long long )__unbuffered_p1_EAX) + (long long )x >= 0LL) && (0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (0LL - (long long )z$flush_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd1 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1_used >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-21 18:18:22,898 INFO L97 edCorrectnessWitness]: Location invariant before [L869-L869] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p0_EBX) + (long long )x >= 0LL && (0LL - (long long )__unbuffered_p1_EAX) + (long long )x >= 0LL) && (0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (0LL - (long long )z$flush_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd1 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1_used >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-21 18:18:22,898 INFO L97 edCorrectnessWitness]: Location invariant before [L870-L870] ! multithreaded || ((((((((((((((((((((((((((((((((((((((((((((0LL - (long long )__unbuffered_p0_EBX) + (long long )x >= 0LL && (0LL - (long long )__unbuffered_p1_EAX) + (long long )x >= 0LL) && (0LL - (long long )__unbuffered_p1_EBX) + (long long )y >= 0LL) && (0LL - (long long )__unbuffered_p2_EAX) + (long long )y >= 0LL) && (0LL - (long long )z$flush_delayed) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff0_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd0) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd1) + (long long )z$w_buff1 >= 0LL) && (0LL - (long long )z$r_buff1_thd2) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$r_buff1_thd3) + (long long )z$w_buff0 >= 0LL) && (0LL - (long long )z$read_delayed) + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_cnt + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p0_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p1_EBX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EAX + (long long )z$w_buff0 >= 0LL) && (long long )__unbuffered_p2_EBX + (long long )z$w_buff0 >= 0LL) && (long long )main$tmp_guard1 + (long long )z$w_buff0 >= 0LL) && (long long )x + (long long )z$w_buff0 >= 0LL) && (long long )y + (long long )z$w_buff0 >= 0LL) && (long long )z + (long long )z$w_buff0 >= 0LL) && (long long )z$flush_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$mem_tmp + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff0_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd0 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd1 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd2 + (long long )z$w_buff0 >= 0LL) && (long long )z$r_buff1_thd3 + (long long )z$w_buff0 >= 0LL) && (long long )z$read_delayed + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 + (long long )z$w_buff1_used >= 0LL) && (long long )weak$$choice0 + (long long )z$w_buff0 >= 0LL) && (long long )weak$$choice2 + (long long )z$w_buff0 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff0_used >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1 >= 0LL) && (long long )z$w_buff0 - (long long )z$w_buff1_used >= 0LL) && (long long )z$w_buff1 - (long long )z$w_buff1_used >= 0LL) [2024-06-21 18:18:22,898 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-21 18:18:22,898 INFO L106 edCorrectnessWitness]: ghost_update [L865-L865] multithreaded = 1; [2024-06-21 18:18:22,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-21 18:18:23,214 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 18:18:23,235 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-21 18:18:23,386 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-21 18:18:23,427 INFO L206 MainTranslator]: Completed translation [2024-06-21 18:18:23,427 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23 WrapperNode [2024-06-21 18:18:23,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-21 18:18:23,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-21 18:18:23,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-21 18:18:23,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-21 18:18:23,434 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 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,472 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 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,506 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2024-06-21 18:18:23,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-21 18:18:23,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-21 18:18:23,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-21 18:18:23,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-21 18:18:23,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,554 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]. [2024-06-21 18:18:23,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-21 18:18:23,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-21 18:18:23,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-21 18:18:23,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-21 18:18:23,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (1/1) ... [2024-06-21 18:18:23,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-21 18:18:23,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-21 18:18:23,620 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) [2024-06-21 18:18:23,644 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 [2024-06-21 18:18:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-21 18:18:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-21 18:18:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-21 18:18:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-21 18:18:23,652 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-21 18:18:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-21 18:18:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-21 18:18:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-21 18:18:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-21 18:18:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-21 18:18:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-21 18:18:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-21 18:18:23,655 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-21 18:18:23,794 INFO L244 CfgBuilder]: Building ICFG [2024-06-21 18:18:23,797 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-21 18:18:24,142 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-21 18:18:24,144 INFO L293 CfgBuilder]: Performing block encoding [2024-06-21 18:18:24,294 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-21 18:18:24,294 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-21 18:18:24,295 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 06:18:24 BoogieIcfgContainer [2024-06-21 18:18:24,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-21 18:18:24,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-21 18:18:24,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-21 18:18:24,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-21 18:18:24,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 06:18:22" (1/4) ... [2024-06-21 18:18:24,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c428b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 06:18:24, skipping insertion in model container [2024-06-21 18:18:24,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.06 06:18:22" (2/4) ... [2024-06-21 18:18:24,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c428b4e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 06:18:24, skipping insertion in model container [2024-06-21 18:18:24,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.06 06:18:23" (3/4) ... [2024-06-21 18:18:24,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c428b4e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 21.06 06:18:24, skipping insertion in model container [2024-06-21 18:18:24,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 06:18:24" (4/4) ... [2024-06-21 18:18:24,303 INFO L112 eAbstractionObserver]: Analyzing ICFG mix001.oepc.i [2024-06-21 18:18:24,316 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-21 18:18:24,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-21 18:18:24,317 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-21 18:18:24,390 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-21 18:18:24,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 98 flow [2024-06-21 18:18:24,451 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-06-21 18:18:24,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 18:18:24,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-21 18:18:24,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 43 transitions, 98 flow [2024-06-21 18:18:24,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-06-21 18:18:24,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-21 18:18:24,475 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;@59dc75b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-21 18:18:24,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-21 18:18:24,480 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-21 18:18:24,480 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-21 18:18:24,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-21 18:18:24,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:24,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-21 18:18:24,481 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)] === [2024-06-21 18:18:24,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash 421617153, now seen corresponding path program 1 times [2024-06-21 18:18:24,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443427129] [2024-06-21 18:18:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:24,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:25,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:25,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443427129] [2024-06-21 18:18:25,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443427129] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-21 18:18:25,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959160620] [2024-06-21 18:18:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:25,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-21 18:18:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:25,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-21 18:18:25,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-21 18:18:25,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-06-21 18:18:25,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:25,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:25,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-06-21 18:18:25,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:26,084 INFO L124 PetriNetUnfolderBase]: 1363/2133 cut-off events. [2024-06-21 18:18:26,084 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-06-21 18:18:26,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4257 conditions, 2133 events. 1363/2133 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10767 event pairs, 964 based on Foata normal form. 1/2077 useless extension candidates. Maximal degree in co-relation 4245. Up to 2037 conditions per place. [2024-06-21 18:18:26,102 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 32 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-06-21 18:18:26,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 175 flow [2024-06-21 18:18:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-21 18:18:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-21 18:18:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-06-21 18:18:26,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.627906976744186 [2024-06-21 18:18:26,114 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 81 transitions. [2024-06-21 18:18:26,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 175 flow [2024-06-21 18:18:26,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-21 18:18:26,120 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 104 flow [2024-06-21 18:18:26,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2024-06-21 18:18:26,124 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-06-21 18:18:26,125 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 104 flow [2024-06-21 18:18:26,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:26,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:26,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:26,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-21 18:18:26,126 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)] === [2024-06-21 18:18:26,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1447404018, now seen corresponding path program 1 times [2024-06-21 18:18:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:26,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268685758] [2024-06-21 18:18:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:26,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:26,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268685758] [2024-06-21 18:18:26,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268685758] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:26,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:26,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-21 18:18:26,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942788205] [2024-06-21 18:18:26,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:26,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-21 18:18:26,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:26,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-21 18:18:26,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-21 18:18:26,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-06-21 18:18:26,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:26,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:26,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-06-21 18:18:26,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:27,241 INFO L124 PetriNetUnfolderBase]: 1357/2134 cut-off events. [2024-06-21 18:18:27,242 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-06-21 18:18:27,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4801 conditions, 2134 events. 1357/2134 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10886 event pairs, 840 based on Foata normal form. 3/2120 useless extension candidates. Maximal degree in co-relation 4789. Up to 2013 conditions per place. [2024-06-21 18:18:27,252 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 39 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-06-21 18:18:27,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 242 flow [2024-06-21 18:18:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-21 18:18:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-21 18:18:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-06-21 18:18:27,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6104651162790697 [2024-06-21 18:18:27,254 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 104 flow. Second operand 4 states and 105 transitions. [2024-06-21 18:18:27,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 242 flow [2024-06-21 18:18:27,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-21 18:18:27,256 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 140 flow [2024-06-21 18:18:27,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-06-21 18:18:27,257 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-06-21 18:18:27,257 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 140 flow [2024-06-21 18:18:27,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:27,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:27,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:27,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-21 18:18:27,258 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)] === [2024-06-21 18:18:27,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1919853034, now seen corresponding path program 1 times [2024-06-21 18:18:27,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:27,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129898032] [2024-06-21 18:18:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:27,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:28,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129898032] [2024-06-21 18:18:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129898032] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:28,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 18:18:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746985388] [2024-06-21 18:18:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:28,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 18:18:28,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:28,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 18:18:28,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-21 18:18:28,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-06-21 18:18:28,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2024-06-21 18:18:28,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:28,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-06-21 18:18:28,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:28,844 INFO L124 PetriNetUnfolderBase]: 1345/2138 cut-off events. [2024-06-21 18:18:28,844 INFO L125 PetriNetUnfolderBase]: For 1162/1162 co-relation queries the response was YES. [2024-06-21 18:18:28,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5310 conditions, 2138 events. 1345/2138 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 11001 event pairs, 592 based on Foata normal form. 6/2124 useless extension candidates. Maximal degree in co-relation 5296. Up to 1965 conditions per place. [2024-06-21 18:18:28,855 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 47 selfloop transitions, 10 changer transitions 0/65 dead transitions. [2024-06-21 18:18:28,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 324 flow [2024-06-21 18:18:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 18:18:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 18:18:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-06-21 18:18:28,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2024-06-21 18:18:28,858 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 140 flow. Second operand 5 states and 130 transitions. [2024-06-21 18:18:28,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 324 flow [2024-06-21 18:18:28,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 310 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-21 18:18:28,860 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 176 flow [2024-06-21 18:18:28,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-06-21 18:18:28,861 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2024-06-21 18:18:28,861 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 176 flow [2024-06-21 18:18:28,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2024-06-21 18:18:28,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:28,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:28,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-21 18:18:28,862 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)] === [2024-06-21 18:18:28,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash -143902164, now seen corresponding path program 1 times [2024-06-21 18:18:28,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:28,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312785957] [2024-06-21 18:18:28,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:28,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:29,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:29,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312785957] [2024-06-21 18:18:29,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312785957] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:29,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:29,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 18:18:29,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898255394] [2024-06-21 18:18:29,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:29,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 18:18:29,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 18:18:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 18:18:29,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:29,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:29,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:29,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:29,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:30,302 INFO L124 PetriNetUnfolderBase]: 1930/2956 cut-off events. [2024-06-21 18:18:30,302 INFO L125 PetriNetUnfolderBase]: For 3039/3039 co-relation queries the response was YES. [2024-06-21 18:18:30,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8011 conditions, 2956 events. 1930/2956 cut-off events. For 3039/3039 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 14782 event pairs, 1405 based on Foata normal form. 2/2938 useless extension candidates. Maximal degree in co-relation 7995. Up to 2849 conditions per place. [2024-06-21 18:18:30,317 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 43 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2024-06-21 18:18:30,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 332 flow [2024-06-21 18:18:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 18:18:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 18:18:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-06-21 18:18:30,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4604651162790698 [2024-06-21 18:18:30,319 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 176 flow. Second operand 5 states and 99 transitions. [2024-06-21 18:18:30,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 332 flow [2024-06-21 18:18:30,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 306 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-21 18:18:30,322 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 215 flow [2024-06-21 18:18:30,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=215, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2024-06-21 18:18:30,323 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-06-21 18:18:30,323 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 215 flow [2024-06-21 18:18:30,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:30,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:30,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:30,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-21 18:18:30,323 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)] === [2024-06-21 18:18:30,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash 866500830, now seen corresponding path program 1 times [2024-06-21 18:18:30,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:30,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015739180] [2024-06-21 18:18:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:30,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:32,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:32,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015739180] [2024-06-21 18:18:32,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015739180] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:32,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:32,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:18:32,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973473274] [2024-06-21 18:18:32,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:32,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:18:32,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:18:32,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:18:32,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-06-21 18:18:32,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 215 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:32,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:32,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-06-21 18:18:32,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:33,580 INFO L124 PetriNetUnfolderBase]: 1797/2830 cut-off events. [2024-06-21 18:18:33,581 INFO L125 PetriNetUnfolderBase]: For 4367/4375 co-relation queries the response was YES. [2024-06-21 18:18:33,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8167 conditions, 2830 events. 1797/2830 cut-off events. For 4367/4375 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14642 event pairs, 603 based on Foata normal form. 14/2832 useless extension candidates. Maximal degree in co-relation 8147. Up to 2550 conditions per place. [2024-06-21 18:18:33,598 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 67 selfloop transitions, 20 changer transitions 0/94 dead transitions. [2024-06-21 18:18:33,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 94 transitions, 527 flow [2024-06-21 18:18:33,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:18:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:18:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 195 transitions. [2024-06-21 18:18:33,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-06-21 18:18:33,601 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 215 flow. Second operand 9 states and 195 transitions. [2024-06-21 18:18:33,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 94 transitions, 527 flow [2024-06-21 18:18:33,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 94 transitions, 511 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-21 18:18:33,609 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 292 flow [2024-06-21 18:18:33,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=292, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-06-21 18:18:33,612 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 17 predicate places. [2024-06-21 18:18:33,612 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 292 flow [2024-06-21 18:18:33,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:33,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:33,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:33,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-21 18:18:33,617 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)] === [2024-06-21 18:18:33,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash -165998705, now seen corresponding path program 1 times [2024-06-21 18:18:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:33,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156058145] [2024-06-21 18:18:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:34,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:34,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:34,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156058145] [2024-06-21 18:18:34,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156058145] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:34,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:34,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:18:34,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430659316] [2024-06-21 18:18:34,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:34,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:18:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:18:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:18:34,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:34,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:34,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:34,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:34,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:35,220 INFO L124 PetriNetUnfolderBase]: 1911/2939 cut-off events. [2024-06-21 18:18:35,221 INFO L125 PetriNetUnfolderBase]: For 6822/6822 co-relation queries the response was YES. [2024-06-21 18:18:35,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9346 conditions, 2939 events. 1911/2939 cut-off events. For 6822/6822 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 14664 event pairs, 1080 based on Foata normal form. 4/2926 useless extension candidates. Maximal degree in co-relation 9322. Up to 2802 conditions per place. [2024-06-21 18:18:35,246 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 55 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2024-06-21 18:18:35,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 73 transitions, 486 flow [2024-06-21 18:18:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:18:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:18:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-06-21 18:18:35,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-21 18:18:35,248 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 292 flow. Second operand 6 states and 116 transitions. [2024-06-21 18:18:35,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 73 transitions, 486 flow [2024-06-21 18:18:35,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 73 transitions, 439 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-06-21 18:18:35,253 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 307 flow [2024-06-21 18:18:35,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=307, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2024-06-21 18:18:35,255 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 18 predicate places. [2024-06-21 18:18:35,255 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 307 flow [2024-06-21 18:18:35,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:35,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:35,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:35,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-21 18:18:35,256 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)] === [2024-06-21 18:18:35,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:35,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1086244669, now seen corresponding path program 1 times [2024-06-21 18:18:35,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:35,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25439383] [2024-06-21 18:18:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:36,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25439383] [2024-06-21 18:18:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25439383] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:36,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:36,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:18:36,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89563516] [2024-06-21 18:18:36,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:36,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:18:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:36,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:18:36,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:18:36,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:36,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:36,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:36,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:36,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:36,811 INFO L124 PetriNetUnfolderBase]: 1944/2992 cut-off events. [2024-06-21 18:18:36,811 INFO L125 PetriNetUnfolderBase]: For 8870/8876 co-relation queries the response was YES. [2024-06-21 18:18:36,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10106 conditions, 2992 events. 1944/2992 cut-off events. For 8870/8876 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15015 event pairs, 1025 based on Foata normal form. 6/2995 useless extension candidates. Maximal degree in co-relation 10080. Up to 2820 conditions per place. [2024-06-21 18:18:36,828 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 66 selfloop transitions, 24 changer transitions 0/95 dead transitions. [2024-06-21 18:18:36,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 95 transitions, 670 flow [2024-06-21 18:18:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2024-06-21 18:18:36,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4684385382059801 [2024-06-21 18:18:36,830 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 307 flow. Second operand 7 states and 141 transitions. [2024-06-21 18:18:36,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 95 transitions, 670 flow [2024-06-21 18:18:36,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 95 transitions, 638 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-06-21 18:18:36,836 INFO L231 Difference]: Finished difference. Result has 67 places, 72 transitions, 448 flow [2024-06-21 18:18:36,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=448, PETRI_PLACES=67, PETRI_TRANSITIONS=72} [2024-06-21 18:18:36,838 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 23 predicate places. [2024-06-21 18:18:36,838 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 72 transitions, 448 flow [2024-06-21 18:18:36,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:36,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:36,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:36,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-21 18:18:36,839 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)] === [2024-06-21 18:18:36,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1602745393, now seen corresponding path program 2 times [2024-06-21 18:18:36,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:36,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197548689] [2024-06-21 18:18:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:37,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197548689] [2024-06-21 18:18:37,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197548689] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:37,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:37,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:18:37,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588694971] [2024-06-21 18:18:37,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:37,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:18:37,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:37,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:18:37,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:18:37,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:37,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 72 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:37,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:37,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:37,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:38,316 INFO L124 PetriNetUnfolderBase]: 1976/3035 cut-off events. [2024-06-21 18:18:38,317 INFO L125 PetriNetUnfolderBase]: For 11894/11900 co-relation queries the response was YES. [2024-06-21 18:18:38,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11120 conditions, 3035 events. 1976/3035 cut-off events. For 11894/11900 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15144 event pairs, 1075 based on Foata normal form. 7/3026 useless extension candidates. Maximal degree in co-relation 11091. Up to 2871 conditions per place. [2024-06-21 18:18:38,331 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 66 selfloop transitions, 30 changer transitions 0/101 dead transitions. [2024-06-21 18:18:38,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 844 flow [2024-06-21 18:18:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:18:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:18:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-06-21 18:18:38,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-21 18:18:38,333 INFO L175 Difference]: Start difference. First operand has 67 places, 72 transitions, 448 flow. Second operand 6 states and 120 transitions. [2024-06-21 18:18:38,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 844 flow [2024-06-21 18:18:38,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 801 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-06-21 18:18:38,339 INFO L231 Difference]: Finished difference. Result has 72 places, 85 transitions, 636 flow [2024-06-21 18:18:38,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=72, PETRI_TRANSITIONS=85} [2024-06-21 18:18:38,340 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 28 predicate places. [2024-06-21 18:18:38,340 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 85 transitions, 636 flow [2024-06-21 18:18:38,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:38,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:38,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-21 18:18:38,341 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)] === [2024-06-21 18:18:38,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -535513683, now seen corresponding path program 3 times [2024-06-21 18:18:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702261012] [2024-06-21 18:18:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:39,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:39,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702261012] [2024-06-21 18:18:39,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702261012] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:39,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:39,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:18:39,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558071765] [2024-06-21 18:18:39,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:39,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:18:39,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:18:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:18:39,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:39,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 85 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:39,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:39,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:39,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:39,842 INFO L124 PetriNetUnfolderBase]: 1968/3023 cut-off events. [2024-06-21 18:18:39,843 INFO L125 PetriNetUnfolderBase]: For 13967/13967 co-relation queries the response was YES. [2024-06-21 18:18:39,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11464 conditions, 3023 events. 1968/3023 cut-off events. For 13967/13967 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 15059 event pairs, 1073 based on Foata normal form. 3/3011 useless extension candidates. Maximal degree in co-relation 11432. Up to 2892 conditions per place. [2024-06-21 18:18:39,860 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 78 selfloop transitions, 16 changer transitions 0/99 dead transitions. [2024-06-21 18:18:39,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 99 transitions, 868 flow [2024-06-21 18:18:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:18:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:18:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-06-21 18:18:39,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573643410852715 [2024-06-21 18:18:39,862 INFO L175 Difference]: Start difference. First operand has 72 places, 85 transitions, 636 flow. Second operand 6 states and 115 transitions. [2024-06-21 18:18:39,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 99 transitions, 868 flow [2024-06-21 18:18:39,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 99 transitions, 777 flow, removed 28 selfloop flow, removed 3 redundant places. [2024-06-21 18:18:39,877 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 588 flow [2024-06-21 18:18:39,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2024-06-21 18:18:39,878 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 31 predicate places. [2024-06-21 18:18:39,878 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 588 flow [2024-06-21 18:18:39,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:18:39,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:39,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:39,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-21 18:18:39,879 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)] === [2024-06-21 18:18:39,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:39,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1469320333, now seen corresponding path program 1 times [2024-06-21 18:18:39,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:39,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925560390] [2024-06-21 18:18:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:39,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:40,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:40,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925560390] [2024-06-21 18:18:40,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925560390] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:40,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:40,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:40,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594993690] [2024-06-21 18:18:40,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:40,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:40,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:40,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:40,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:40,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:40,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 588 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) [2024-06-21 18:18:40,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:40,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:40,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:41,526 INFO L124 PetriNetUnfolderBase]: 2001/3092 cut-off events. [2024-06-21 18:18:41,526 INFO L125 PetriNetUnfolderBase]: For 16217/16228 co-relation queries the response was YES. [2024-06-21 18:18:41,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11888 conditions, 3092 events. 2001/3092 cut-off events. For 16217/16228 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 15584 event pairs, 988 based on Foata normal form. 10/3099 useless extension candidates. Maximal degree in co-relation 11855. Up to 2817 conditions per place. [2024-06-21 18:18:41,541 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 74 selfloop transitions, 49 changer transitions 0/128 dead transitions. [2024-06-21 18:18:41,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 128 transitions, 1076 flow [2024-06-21 18:18:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:18:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:18:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 162 transitions. [2024-06-21 18:18:41,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47093023255813954 [2024-06-21 18:18:41,542 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 588 flow. Second operand 8 states and 162 transitions. [2024-06-21 18:18:41,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 128 transitions, 1076 flow [2024-06-21 18:18:41,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 128 transitions, 1043 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-21 18:18:41,554 INFO L231 Difference]: Finished difference. Result has 81 places, 99 transitions, 802 flow [2024-06-21 18:18:41,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=802, PETRI_PLACES=81, PETRI_TRANSITIONS=99} [2024-06-21 18:18:41,555 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 37 predicate places. [2024-06-21 18:18:41,555 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 99 transitions, 802 flow [2024-06-21 18:18:41,555 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) [2024-06-21 18:18:41,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:41,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:41,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-21 18:18:41,555 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)] === [2024-06-21 18:18:41,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash -696479483, now seen corresponding path program 2 times [2024-06-21 18:18:41,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:41,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094186531] [2024-06-21 18:18:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:43,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:43,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094186531] [2024-06-21 18:18:43,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094186531] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:43,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:43,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:43,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484935609] [2024-06-21 18:18:43,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:43,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:43,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:43,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:43,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:43,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:43,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 99 transitions, 802 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) [2024-06-21 18:18:43,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:43,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:43,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:44,087 INFO L124 PetriNetUnfolderBase]: 2071/3185 cut-off events. [2024-06-21 18:18:44,087 INFO L125 PetriNetUnfolderBase]: For 21109/21120 co-relation queries the response was YES. [2024-06-21 18:18:44,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13328 conditions, 3185 events. 2071/3185 cut-off events. For 21109/21120 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 16004 event pairs, 1007 based on Foata normal form. 11/3193 useless extension candidates. Maximal degree in co-relation 13292. Up to 2939 conditions per place. [2024-06-21 18:18:44,108 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 87 selfloop transitions, 55 changer transitions 0/147 dead transitions. [2024-06-21 18:18:44,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 147 transitions, 1443 flow [2024-06-21 18:18:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 149 transitions. [2024-06-21 18:18:44,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4950166112956811 [2024-06-21 18:18:44,110 INFO L175 Difference]: Start difference. First operand has 81 places, 99 transitions, 802 flow. Second operand 7 states and 149 transitions. [2024-06-21 18:18:44,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 147 transitions, 1443 flow [2024-06-21 18:18:44,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 147 transitions, 1330 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-06-21 18:18:44,132 INFO L231 Difference]: Finished difference. Result has 86 places, 120 transitions, 1091 flow [2024-06-21 18:18:44,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1091, PETRI_PLACES=86, PETRI_TRANSITIONS=120} [2024-06-21 18:18:44,132 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 42 predicate places. [2024-06-21 18:18:44,132 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 120 transitions, 1091 flow [2024-06-21 18:18:44,133 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) [2024-06-21 18:18:44,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:44,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:44,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-21 18:18:44,133 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)] === [2024-06-21 18:18:44,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash -686152546, now seen corresponding path program 1 times [2024-06-21 18:18:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:44,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461182612] [2024-06-21 18:18:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:44,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461182612] [2024-06-21 18:18:45,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461182612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:45,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:45,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205689345] [2024-06-21 18:18:45,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:45,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:45,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:45,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:45,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 120 transitions, 1091 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) [2024-06-21 18:18:45,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:45,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:45,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:46,055 INFO L124 PetriNetUnfolderBase]: 2092/3220 cut-off events. [2024-06-21 18:18:46,055 INFO L125 PetriNetUnfolderBase]: For 23983/23996 co-relation queries the response was YES. [2024-06-21 18:18:46,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13841 conditions, 3220 events. 2092/3220 cut-off events. For 23983/23996 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 16118 event pairs, 976 based on Foata normal form. 9/3225 useless extension candidates. Maximal degree in co-relation 13803. Up to 2973 conditions per place. [2024-06-21 18:18:46,078 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 110 selfloop transitions, 45 changer transitions 0/160 dead transitions. [2024-06-21 18:18:46,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 160 transitions, 1655 flow [2024-06-21 18:18:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:18:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:18:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-21 18:18:46,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-21 18:18:46,080 INFO L175 Difference]: Start difference. First operand has 86 places, 120 transitions, 1091 flow. Second operand 8 states and 161 transitions. [2024-06-21 18:18:46,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 160 transitions, 1655 flow [2024-06-21 18:18:46,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 160 transitions, 1584 flow, removed 16 selfloop flow, removed 3 redundant places. [2024-06-21 18:18:46,110 INFO L231 Difference]: Finished difference. Result has 93 places, 133 transitions, 1259 flow [2024-06-21 18:18:46,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1259, PETRI_PLACES=93, PETRI_TRANSITIONS=133} [2024-06-21 18:18:46,111 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 49 predicate places. [2024-06-21 18:18:46,111 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 133 transitions, 1259 flow [2024-06-21 18:18:46,112 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) [2024-06-21 18:18:46,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:46,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:46,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-21 18:18:46,112 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)] === [2024-06-21 18:18:46,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash -696329753, now seen corresponding path program 3 times [2024-06-21 18:18:46,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:46,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911868685] [2024-06-21 18:18:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:46,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:47,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911868685] [2024-06-21 18:18:47,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911868685] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:47,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:47,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:47,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106305301] [2024-06-21 18:18:47,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:47,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:47,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:47,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:47,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:47,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:47,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 133 transitions, 1259 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) [2024-06-21 18:18:47,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:47,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:47,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:48,148 INFO L124 PetriNetUnfolderBase]: 2094/3224 cut-off events. [2024-06-21 18:18:48,149 INFO L125 PetriNetUnfolderBase]: For 28188/28198 co-relation queries the response was YES. [2024-06-21 18:18:48,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14694 conditions, 3224 events. 2094/3224 cut-off events. For 28188/28198 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 16171 event pairs, 970 based on Foata normal form. 11/3232 useless extension candidates. Maximal degree in co-relation 14651. Up to 3013 conditions per place. [2024-06-21 18:18:48,172 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 113 selfloop transitions, 42 changer transitions 0/160 dead transitions. [2024-06-21 18:18:48,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 160 transitions, 1695 flow [2024-06-21 18:18:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:48,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 145 transitions. [2024-06-21 18:18:48,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48172757475083056 [2024-06-21 18:18:48,173 INFO L175 Difference]: Start difference. First operand has 93 places, 133 transitions, 1259 flow. Second operand 7 states and 145 transitions. [2024-06-21 18:18:48,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 160 transitions, 1695 flow [2024-06-21 18:18:48,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 160 transitions, 1663 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-06-21 18:18:48,207 INFO L231 Difference]: Finished difference. Result has 98 places, 136 transitions, 1369 flow [2024-06-21 18:18:48,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1369, PETRI_PLACES=98, PETRI_TRANSITIONS=136} [2024-06-21 18:18:48,208 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 54 predicate places. [2024-06-21 18:18:48,208 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 136 transitions, 1369 flow [2024-06-21 18:18:48,208 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) [2024-06-21 18:18:48,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:48,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:48,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-21 18:18:48,209 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)] === [2024-06-21 18:18:48,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash -818010091, now seen corresponding path program 4 times [2024-06-21 18:18:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:48,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872234155] [2024-06-21 18:18:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:49,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:49,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872234155] [2024-06-21 18:18:49,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872234155] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:49,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:49,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:49,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495853213] [2024-06-21 18:18:49,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:49,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:49,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:49,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 136 transitions, 1369 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) [2024-06-21 18:18:49,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:49,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:49,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:50,424 INFO L124 PetriNetUnfolderBase]: 2147/3304 cut-off events. [2024-06-21 18:18:50,424 INFO L125 PetriNetUnfolderBase]: For 32689/32692 co-relation queries the response was YES. [2024-06-21 18:18:50,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15583 conditions, 3304 events. 2147/3304 cut-off events. For 32689/32692 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 16639 event pairs, 1032 based on Foata normal form. 5/3295 useless extension candidates. Maximal degree in co-relation 15538. Up to 3049 conditions per place. [2024-06-21 18:18:50,447 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 113 selfloop transitions, 61 changer transitions 0/179 dead transitions. [2024-06-21 18:18:50,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 179 transitions, 2084 flow [2024-06-21 18:18:50,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2024-06-21 18:18:50,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46179401993355484 [2024-06-21 18:18:50,449 INFO L175 Difference]: Start difference. First operand has 98 places, 136 transitions, 1369 flow. Second operand 7 states and 139 transitions. [2024-06-21 18:18:50,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 179 transitions, 2084 flow [2024-06-21 18:18:50,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 179 transitions, 1957 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-06-21 18:18:50,476 INFO L231 Difference]: Finished difference. Result has 101 places, 158 transitions, 1688 flow [2024-06-21 18:18:50,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1688, PETRI_PLACES=101, PETRI_TRANSITIONS=158} [2024-06-21 18:18:50,476 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 57 predicate places. [2024-06-21 18:18:50,477 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 158 transitions, 1688 flow [2024-06-21 18:18:50,477 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) [2024-06-21 18:18:50,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:50,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:50,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-21 18:18:50,477 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)] === [2024-06-21 18:18:50,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash -817860361, now seen corresponding path program 5 times [2024-06-21 18:18:50,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:50,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343350034] [2024-06-21 18:18:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:50,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:51,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:51,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343350034] [2024-06-21 18:18:51,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343350034] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:51,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:51,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:51,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993632763] [2024-06-21 18:18:51,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:51,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:51,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:51,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:51,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:51,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:51,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 158 transitions, 1688 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) [2024-06-21 18:18:51,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:51,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:51,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:52,416 INFO L124 PetriNetUnfolderBase]: 2172/3342 cut-off events. [2024-06-21 18:18:52,416 INFO L125 PetriNetUnfolderBase]: For 37098/37101 co-relation queries the response was YES. [2024-06-21 18:18:52,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16334 conditions, 3342 events. 2172/3342 cut-off events. For 37098/37101 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 16774 event pairs, 1034 based on Foata normal form. 6/3334 useless extension candidates. Maximal degree in co-relation 16286. Up to 3136 conditions per place. [2024-06-21 18:18:52,439 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 138 selfloop transitions, 42 changer transitions 0/185 dead transitions. [2024-06-21 18:18:52,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 185 transitions, 2260 flow [2024-06-21 18:18:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-06-21 18:18:52,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4485049833887043 [2024-06-21 18:18:52,440 INFO L175 Difference]: Start difference. First operand has 101 places, 158 transitions, 1688 flow. Second operand 7 states and 135 transitions. [2024-06-21 18:18:52,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 185 transitions, 2260 flow [2024-06-21 18:18:52,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 185 transitions, 2140 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-21 18:18:52,477 INFO L231 Difference]: Finished difference. Result has 104 places, 167 transitions, 1836 flow [2024-06-21 18:18:52,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1577, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1836, PETRI_PLACES=104, PETRI_TRANSITIONS=167} [2024-06-21 18:18:52,478 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 60 predicate places. [2024-06-21 18:18:52,478 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 167 transitions, 1836 flow [2024-06-21 18:18:52,478 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) [2024-06-21 18:18:52,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:52,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:52,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-21 18:18:52,478 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)] === [2024-06-21 18:18:52,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -817860144, now seen corresponding path program 2 times [2024-06-21 18:18:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:52,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475329230] [2024-06-21 18:18:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:53,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475329230] [2024-06-21 18:18:53,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475329230] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:53,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:53,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:53,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662321493] [2024-06-21 18:18:53,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:53,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:53,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:53,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:53,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:53,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:53,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 167 transitions, 1836 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) [2024-06-21 18:18:53,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:53,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:53,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:54,112 INFO L124 PetriNetUnfolderBase]: 2224/3422 cut-off events. [2024-06-21 18:18:54,112 INFO L125 PetriNetUnfolderBase]: For 42085/42088 co-relation queries the response was YES. [2024-06-21 18:18:54,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16981 conditions, 3422 events. 2224/3422 cut-off events. For 42085/42088 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17248 event pairs, 1040 based on Foata normal form. 5/3412 useless extension candidates. Maximal degree in co-relation 16932. Up to 3150 conditions per place. [2024-06-21 18:18:54,130 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 153 selfloop transitions, 46 changer transitions 0/204 dead transitions. [2024-06-21 18:18:54,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 204 transitions, 2526 flow [2024-06-21 18:18:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2024-06-21 18:18:54,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4684385382059801 [2024-06-21 18:18:54,132 INFO L175 Difference]: Start difference. First operand has 104 places, 167 transitions, 1836 flow. Second operand 7 states and 141 transitions. [2024-06-21 18:18:54,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 204 transitions, 2526 flow [2024-06-21 18:18:54,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 204 transitions, 2409 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-06-21 18:18:54,167 INFO L231 Difference]: Finished difference. Result has 106 places, 179 transitions, 1969 flow [2024-06-21 18:18:54,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1719, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1969, PETRI_PLACES=106, PETRI_TRANSITIONS=179} [2024-06-21 18:18:54,167 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 62 predicate places. [2024-06-21 18:18:54,167 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 179 transitions, 1969 flow [2024-06-21 18:18:54,168 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) [2024-06-21 18:18:54,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:54,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:54,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-21 18:18:54,168 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)] === [2024-06-21 18:18:54,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2116781748, now seen corresponding path program 3 times [2024-06-21 18:18:54,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:54,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129769673] [2024-06-21 18:18:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:54,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:54,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129769673] [2024-06-21 18:18:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129769673] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:54,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:54,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780886112] [2024-06-21 18:18:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:54,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:54,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:55,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:55,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 179 transitions, 1969 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) [2024-06-21 18:18:55,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:55,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:55,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:55,807 INFO L124 PetriNetUnfolderBase]: 2253/3470 cut-off events. [2024-06-21 18:18:55,807 INFO L125 PetriNetUnfolderBase]: For 47391/47391 co-relation queries the response was YES. [2024-06-21 18:18:55,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17863 conditions, 3470 events. 2253/3470 cut-off events. For 47391/47391 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17536 event pairs, 1048 based on Foata normal form. 5/3462 useless extension candidates. Maximal degree in co-relation 17813. Up to 3282 conditions per place. [2024-06-21 18:18:55,833 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 182 selfloop transitions, 20 changer transitions 0/207 dead transitions. [2024-06-21 18:18:55,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 207 transitions, 2563 flow [2024-06-21 18:18:55,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 133 transitions. [2024-06-21 18:18:55,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-21 18:18:55,834 INFO L175 Difference]: Start difference. First operand has 106 places, 179 transitions, 1969 flow. Second operand 7 states and 133 transitions. [2024-06-21 18:18:55,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 207 transitions, 2563 flow [2024-06-21 18:18:55,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 207 transitions, 2487 flow, removed 31 selfloop flow, removed 2 redundant places. [2024-06-21 18:18:55,881 INFO L231 Difference]: Finished difference. Result has 111 places, 186 transitions, 2063 flow [2024-06-21 18:18:55,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2063, PETRI_PLACES=111, PETRI_TRANSITIONS=186} [2024-06-21 18:18:55,881 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 67 predicate places. [2024-06-21 18:18:55,881 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 186 transitions, 2063 flow [2024-06-21 18:18:55,882 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) [2024-06-21 18:18:55,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:55,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:55,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-21 18:18:55,882 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)] === [2024-06-21 18:18:55,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash -812296171, now seen corresponding path program 6 times [2024-06-21 18:18:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616690468] [2024-06-21 18:18:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:57,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:57,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616690468] [2024-06-21 18:18:57,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616690468] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:57,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:57,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:57,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970349483] [2024-06-21 18:18:57,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:57,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:57,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:57,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:57,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:57,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:57,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 186 transitions, 2063 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) [2024-06-21 18:18:57,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:57,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:57,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:57,877 INFO L124 PetriNetUnfolderBase]: 2242/3453 cut-off events. [2024-06-21 18:18:57,877 INFO L125 PetriNetUnfolderBase]: For 51349/51349 co-relation queries the response was YES. [2024-06-21 18:18:57,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17991 conditions, 3453 events. 2242/3453 cut-off events. For 51349/51349 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17449 event pairs, 1044 based on Foata normal form. 4/3444 useless extension candidates. Maximal degree in co-relation 17938. Up to 3272 conditions per place. [2024-06-21 18:18:57,899 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 174 selfloop transitions, 25 changer transitions 0/204 dead transitions. [2024-06-21 18:18:57,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 204 transitions, 2530 flow [2024-06-21 18:18:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:57,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-21 18:18:57,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2024-06-21 18:18:57,900 INFO L175 Difference]: Start difference. First operand has 111 places, 186 transitions, 2063 flow. Second operand 7 states and 132 transitions. [2024-06-21 18:18:57,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 204 transitions, 2530 flow [2024-06-21 18:18:57,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 204 transitions, 2396 flow, removed 49 selfloop flow, removed 5 redundant places. [2024-06-21 18:18:57,951 INFO L231 Difference]: Finished difference. Result has 113 places, 186 transitions, 1994 flow [2024-06-21 18:18:57,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1994, PETRI_PLACES=113, PETRI_TRANSITIONS=186} [2024-06-21 18:18:57,951 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 69 predicate places. [2024-06-21 18:18:57,951 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 186 transitions, 1994 flow [2024-06-21 18:18:57,951 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) [2024-06-21 18:18:57,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:57,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:57,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-21 18:18:57,952 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:18:57,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:57,952 INFO L85 PathProgramCache]: Analyzing trace with hash 246478534, now seen corresponding path program 4 times [2024-06-21 18:18:57,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:57,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893550500] [2024-06-21 18:18:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:18:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:18:58,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:18:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893550500] [2024-06-21 18:18:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893550500] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:18:58,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:18:58,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:18:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497741118] [2024-06-21 18:18:58,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:18:58,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:18:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:18:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:18:58,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:18:58,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:18:58,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 186 transitions, 1994 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) [2024-06-21 18:18:58,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:18:58,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:18:58,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:18:59,620 INFO L124 PetriNetUnfolderBase]: 2229/3436 cut-off events. [2024-06-21 18:18:59,620 INFO L125 PetriNetUnfolderBase]: For 55081/55081 co-relation queries the response was YES. [2024-06-21 18:18:59,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17997 conditions, 3436 events. 2229/3436 cut-off events. For 55081/55081 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17370 event pairs, 1042 based on Foata normal form. 5/3428 useless extension candidates. Maximal degree in co-relation 17943. Up to 3212 conditions per place. [2024-06-21 18:18:59,639 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 174 selfloop transitions, 32 changer transitions 0/211 dead transitions. [2024-06-21 18:18:59,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 211 transitions, 2517 flow [2024-06-21 18:18:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:18:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:18:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-06-21 18:18:59,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45182724252491696 [2024-06-21 18:18:59,641 INFO L175 Difference]: Start difference. First operand has 113 places, 186 transitions, 1994 flow. Second operand 7 states and 136 transitions. [2024-06-21 18:18:59,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 211 transitions, 2517 flow [2024-06-21 18:18:59,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 211 transitions, 2387 flow, removed 34 selfloop flow, removed 6 redundant places. [2024-06-21 18:18:59,687 INFO L231 Difference]: Finished difference. Result has 114 places, 186 transitions, 1941 flow [2024-06-21 18:18:59,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1864, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1941, PETRI_PLACES=114, PETRI_TRANSITIONS=186} [2024-06-21 18:18:59,688 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 70 predicate places. [2024-06-21 18:18:59,688 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 186 transitions, 1941 flow [2024-06-21 18:18:59,688 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) [2024-06-21 18:18:59,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:18:59,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:18:59,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-21 18:18:59,688 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:18:59,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:18:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1141384462, now seen corresponding path program 1 times [2024-06-21 18:18:59,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:18:59,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071988516] [2024-06-21 18:18:59,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:18:59,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:18:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:00,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071988516] [2024-06-21 18:19:00,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071988516] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:00,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:00,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-21 18:19:00,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488945419] [2024-06-21 18:19:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-21 18:19:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-21 18:19:00,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-21 18:19:00,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:00,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 186 transitions, 1941 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:00,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:00,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:00,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:00,721 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([424] L801-->L804: Formula: (= v_~__unbuffered_p1_EBX~0_1 v_~y~0_1) InVars {~y~0=v_~y~0_1} OutVars{~y~0=v_~y~0_1, ~__unbuffered_p1_EBX~0=v_~__unbuffered_p1_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p1_EBX~0][40], [Black: 63#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$w_buff0_used~0 1) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 253#(and (or (and (= 0 ~z$flush_delayed~0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff0_used~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 161#true, 33#L778true, Black: 128#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 129#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 69#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (or (and (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (<= 0 (+ ~z~0 1)) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 145#true, Black: 196#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (<= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 259#true, 109#true, Black: 265#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 139#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~z$w_buff0~0 1)), Black: 73#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 77#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 271#true, Black: 208#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 207#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 21#L870true, Black: 90#(and (or (and (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (<= 1 ~__unbuffered_cnt~0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (or (and (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0)), 223#true, Black: 88#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (or (and (= ~__unbuffered_p0_EAX~0 0) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0))) (and (= ~__unbuffered_p0_EAX~0 1) (or (= ~z~0 1) (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0)))) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= |#ghost~multithreaded| 0) (= ~z$w_buff0_used~0 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 157#(and (= ~__unbuffered_cnt~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 219#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~z~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 149#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 155#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 37#L804true, 172#true, Black: 229#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 166#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 167#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~x~0 1) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), 43#$Ultimate##0true, Black: 103#(and (= ~__unbuffered_cnt~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), P0Thread1of1ForFork0InUse, P1Thread1of1ForFork2InUse, Black: 239#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), P2Thread1of1ForFork1InUse, Black: 120#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (= |#ghost~multithreaded| 0) (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 112#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 58#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$r_buff0_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0_used~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0)), Black: 175#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 118#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 186#(and (= ~__unbuffered_cnt~0 0) (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_p1_EAX~0 1) (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 174#(and (= ~__unbuffered_cnt~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0))]) [2024-06-21 18:19:00,722 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2024-06-21 18:19:00,722 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is cut-off event [2024-06-21 18:19:00,722 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is cut-off event [2024-06-21 18:19:00,723 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is cut-off event [2024-06-21 18:19:00,744 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([429] L819-->L821: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0][182], [Black: 63#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$w_buff0_used~0 1) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 30#L821true, Black: 253#(and (or (and (= 0 ~z$flush_delayed~0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff0_used~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 161#true, 33#L778true, Black: 128#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 129#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 69#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (or (and (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (<= 0 (+ ~z~0 1)) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 145#true, Black: 196#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (<= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 259#true, 109#true, Black: 265#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 139#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~z$w_buff0~0 1)), Black: 73#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 77#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 271#true, Black: 208#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 207#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 21#L870true, 223#true, Black: 90#(and (or (and (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (<= 1 ~__unbuffered_cnt~0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (or (and (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0)), Black: 88#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (or (and (= ~__unbuffered_p0_EAX~0 0) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0))) (and (= ~__unbuffered_p0_EAX~0 1) (or (= ~z~0 1) (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0)))) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= |#ghost~multithreaded| 0) (= ~z$w_buff0_used~0 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 219#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~z~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 157#(and (= ~__unbuffered_cnt~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 149#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 155#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 172#true, Black: 229#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 166#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 167#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~x~0 1) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 103#(and (= ~__unbuffered_cnt~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 10#L801true, P0Thread1of1ForFork0InUse, P1Thread1of1ForFork2InUse, P2Thread1of1ForFork1InUse, Black: 239#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 120#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (= |#ghost~multithreaded| 0) (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 112#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 175#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 118#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 58#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$r_buff0_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0_used~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0)), Black: 186#(and (= ~__unbuffered_cnt~0 0) (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_p1_EAX~0 1) (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 174#(and (= ~__unbuffered_cnt~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0))]) [2024-06-21 18:19:00,745 INFO L294 olderBase$Statistics]: this new event has 18 ancestors and is cut-off event [2024-06-21 18:19:00,745 INFO L297 olderBase$Statistics]: existing Event has 18 ancestors and is cut-off event [2024-06-21 18:19:00,745 INFO L297 olderBase$Statistics]: existing Event has 18 ancestors and is cut-off event [2024-06-21 18:19:00,745 INFO L297 olderBase$Statistics]: existing Event has 18 ancestors and is cut-off event [2024-06-21 18:19:00,747 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([391] L870-->ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT: Formula: (and (let ((.cse0 (mod v_~z$r_buff1_thd3~0_19 256)) (.cse3 (mod v_~z$r_buff1_thd1~0_19 256)) (.cse2 (mod v_~z$r_buff1_thd2~0_11 256)) (.cse7 (mod v_~z$flush_delayed~0_12 256)) (.cse4 (mod v_~z$r_buff0_thd3~0_21 256)) (.cse5 (mod v_~z$r_buff0_thd0~0_7 256)) (.cse6 (mod v_~z$read_delayed~0_6 256)) (.cse9 (mod v_~z$r_buff1_thd0~0_7 256)) (.cse8 (mod v_~z$r_buff0_thd2~0_13 256)) (.cse1 (mod v_~z$w_buff1_used~0_36 256))) (or (< v_~y~0_9 v_~__unbuffered_p1_EBX~0_7) (< v_~z$w_buff0~0_17 .cse0) (< v_~z$w_buff1~0_16 .cse1) (< (+ (mod v_~weak$$choice2~0_22 256) v_~z$w_buff0~0_17) 0) (< v_~x~0_9 v_~__unbuffered_p0_EBX~0_7) (< (+ v_~__unbuffered_p1_EBX~0_7 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_p2_EAX~0_7 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_p2_EBX~0_7 v_~z$w_buff0~0_17) 0) (< v_~z$w_buff0~0_17 .cse2) (< v_~z$w_buff1~0_16 .cse3) (< (+ .cse0 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_cnt~0_12 v_~z$w_buff0~0_17) 0) (< (+ v_~z$w_buff0~0_17 v_~y~0_9) 0) (< v_~z$w_buff0~0_17 v_~z$w_buff1~0_16) (< v_~z$w_buff0~0_17 (mod v_~z$w_buff0_used~0_43 256)) (< v_~z$w_buff0~0_17 .cse4) (< (+ v_~z$w_buff0~0_17 v_~z$w_buff1~0_16) 0) (< (+ .cse5 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_p0_EBX~0_7 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_p1_EAX~0_7 v_~z$w_buff0~0_17) 0) (< v_~z$w_buff0~0_17 .cse3) (< v_~z$w_buff0~0_17 .cse6) (< v_~z$w_buff0~0_17 .cse7) (< (+ v_~z~0_24 v_~z$w_buff0~0_17) 0) (< v_~y~0_9 v_~__unbuffered_p2_EAX~0_7) (< (+ .cse3 v_~z$w_buff0~0_17) 0) (< (+ .cse2 v_~z$w_buff0~0_17) 0) (< (+ .cse7 v_~z$w_buff0~0_17) 0) (< (+ .cse4 v_~z$w_buff0~0_17) 0) (< v_~x~0_9 v_~__unbuffered_p1_EAX~0_7) (< v_~z$w_buff0~0_17 .cse8) (< v_~z$w_buff0~0_17 .cse9) (< (+ v_~z$w_buff0~0_17 (mod v_~weak$$choice0~0_8 256)) 0) (< v_~z$w_buff0~0_17 .cse5) (< (+ .cse6 v_~z$w_buff0~0_17) 0) (< (+ v_~z$mem_tmp~0_10 v_~z$w_buff0~0_17) 0) (< (+ v_~__unbuffered_p0_EAX~0_7 v_~z$w_buff0~0_17) 0) (< (+ .cse1 v_~z$w_buff0~0_17) 0) (< (+ v_~z$w_buff0~0_17 v_~x~0_9) 0) (< (+ .cse9 v_~z$w_buff0~0_17) 0) (< (+ v_~z$w_buff0~0_17 .cse8) 0) (< v_~z$w_buff0~0_17 (mod v_~z$r_buff0_thd1~0_22 256)) (< (+ (mod v_~main$tmp_guard1~0_6 256) v_~z$w_buff0~0_17) 0) (< v_~z$w_buff0~0_17 .cse1))) (not (= |v_#ghost~multithreaded_7| 0))) InVars {~z$r_buff1_thd2~0=v_~z$r_buff1_thd2~0_11, ~z$read_delayed~0=v_~z$read_delayed~0_6, ~z$w_buff1~0=v_~z$w_buff1~0_16, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_6, ~z$r_buff0_thd0~0=v_~z$r_buff0_thd0~0_7, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_7, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_7, ~z$r_buff1_thd0~0=v_~z$r_buff1_thd0~0_7, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_7, #ghost~multithreaded=|v_#ghost~multithreaded_7|, ~y~0=v_~y~0_9, ~z$r_buff0_thd2~0=v_~z$r_buff0_thd2~0_13, ~z$mem_tmp~0=v_~z$mem_tmp~0_10, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_7, ~__unbuffered_p1_EBX~0=v_~__unbuffered_p1_EBX~0_7, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_7, ~z$w_buff0~0=v_~z$w_buff0~0_17, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_43, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_19, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_36, ~z$flush_delayed~0=v_~z$flush_delayed~0_12, ~weak$$choice0~0=v_~weak$$choice0~0_8, ~z$r_buff1_thd1~0=v_~z$r_buff1_thd1~0_19, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_21, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_12, ~z~0=v_~z~0_24, ~z$r_buff0_thd1~0=v_~z$r_buff0_thd1~0_22, ~weak$$choice2~0=v_~weak$$choice2~0_22, ~x~0=v_~x~0_9} OutVars{~z$r_buff1_thd2~0=v_~z$r_buff1_thd2~0_11, ~z$read_delayed~0=v_~z$read_delayed~0_6, ~z$w_buff1~0=v_~z$w_buff1~0_16, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_6, ~z$r_buff0_thd0~0=v_~z$r_buff0_thd0~0_7, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_7, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_7, ~z$r_buff1_thd0~0=v_~z$r_buff1_thd0~0_7, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_7, #ghost~multithreaded=|v_#ghost~multithreaded_7|, ~y~0=v_~y~0_9, ~z$r_buff0_thd2~0=v_~z$r_buff0_thd2~0_13, ~z$mem_tmp~0=v_~z$mem_tmp~0_10, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_7, ~__unbuffered_p1_EBX~0=v_~__unbuffered_p1_EBX~0_7, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_7, ~z$w_buff0~0=v_~z$w_buff0~0_17, ~z$w_buff0_used~0=v_~z$w_buff0_used~0_43, ~z$r_buff1_thd3~0=v_~z$r_buff1_thd3~0_19, ~z$w_buff1_used~0=v_~z$w_buff1_used~0_36, ~z$flush_delayed~0=v_~z$flush_delayed~0_12, ~weak$$choice0~0=v_~weak$$choice0~0_8, ~z$r_buff1_thd1~0=v_~z$r_buff1_thd1~0_19, ~z$r_buff0_thd3~0=v_~z$r_buff0_thd3~0_21, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_12, ~z~0=v_~z~0_24, ~z$r_buff0_thd1~0=v_~z$r_buff0_thd1~0_22, ~weak$$choice2~0=v_~weak$$choice2~0_22, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[][155], [Black: 63#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$w_buff0_used~0 1) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 253#(and (or (and (= 0 ~z$flush_delayed~0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff0_used~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 161#true, 33#L778true, Black: 128#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 129#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 69#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (or (and (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (<= 0 (+ ~z~0 1)) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 145#true, Black: 196#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (<= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 259#true, 109#true, Black: 265#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 73#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 139#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~z$w_buff0~0 1)), Black: 77#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 271#true, Black: 208#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 207#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 223#true, Black: 90#(and (or (and (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (<= 1 ~__unbuffered_cnt~0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (or (and (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0)), Black: 88#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (or (and (= ~__unbuffered_p0_EAX~0 0) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0))) (and (= ~__unbuffered_p0_EAX~0 1) (or (= ~z~0 1) (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0)))) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= |#ghost~multithreaded| 0) (= ~z$w_buff0_used~0 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 157#(and (= ~__unbuffered_cnt~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 219#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~z~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 149#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 155#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 172#true, Black: 229#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 166#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), 43#$Ultimate##0true, Black: 167#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~x~0 1) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 103#(and (= ~__unbuffered_cnt~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 10#L801true, 38#ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANTtrue, P0Thread1of1ForFork0InUse, P1Thread1of1ForFork2InUse, P2Thread1of1ForFork1InUse, Black: 239#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 120#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (= |#ghost~multithreaded| 0) (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 112#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 175#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 118#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 58#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$r_buff0_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0_used~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0)), Black: 186#(and (= ~__unbuffered_cnt~0 0) (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_p1_EAX~0 1) (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 174#(and (= ~__unbuffered_cnt~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0))]) [2024-06-21 18:19:00,747 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is not cut-off event [2024-06-21 18:19:00,747 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is not cut-off event [2024-06-21 18:19:00,748 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is not cut-off event [2024-06-21 18:19:00,748 INFO L297 olderBase$Statistics]: existing Event has 17 ancestors and is not cut-off event [2024-06-21 18:19:00,799 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([429] L819-->L821: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0][182], [Black: 63#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$w_buff0_used~0 1) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 30#L821true, Black: 253#(and (or (and (= 0 ~z$flush_delayed~0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~z$mem_tmp~0 0) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff0_used~0 0) (<= ~z$w_buff1_used~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 161#true, Black: 128#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 129#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~z$w_buff0~0 1)), Black: 69#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (or (and (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (<= 0 (+ ~z~0 1)) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), 145#true, Black: 196#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (<= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 259#true, 109#true, Black: 265#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 139#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~z$w_buff0~0 1)), Black: 73#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), Black: 77#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 271#true, Black: 208#(and (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0))) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 207#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (or (and (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0)) (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 21#L870true, 223#true, Black: 90#(and (or (and (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (<= 1 ~__unbuffered_cnt~0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (or (and (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff0_thd1~0 1) (or (= ~z~0 1) (= ~z~0 0)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0)), Black: 88#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~z$r_buff0_thd1~0 1) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (or (and (= ~__unbuffered_p0_EAX~0 0) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0))) (and (= ~__unbuffered_p0_EAX~0 1) (or (= ~z~0 1) (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= ~z~0 0)))) (or (not (= (* 256 (div ~z$w_buff0_used~0 256)) ~z$w_buff0_used~0)) (= |#ghost~multithreaded| 0) (= ~z$w_buff0_used~0 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff0~0 1)), Black: 157#(and (= ~__unbuffered_cnt~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 219#(and (or (and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (or (and (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff0_used~0 256)) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256)))) (and (= ~z~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$r_buff1_thd1~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 1) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (<= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= ~x~0 1) (<= 0 (div ~z$r_buff0_thd1~0 256)) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 23#L781true, Black: 149#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 155#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= 0 (+ ~__unbuffered_p0_EAX~0 1)) (<= 0 (+ ~z~0 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), 172#true, Black: 229#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 166#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 167#(and (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~y~0 0) (= ~x~0 1) (or (= |#ghost~multithreaded| 0) (and (= 0 ~z$flush_delayed~0) (or (and (= ~__unbuffered_cnt~0 0) (<= ~z$w_buff0_used~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= 0 (div ~z$w_buff0_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0)) (and (= ~__unbuffered_cnt~0 0) (= ~z~0 1) (<= 0 (div ~z$w_buff1_used~0 256)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (= ~__unbuffered_p0_EAX~0 1) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd1~0 1) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (= ~z$mem_tmp~0 0) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (<= 0 (div ~z$r_buff0_thd1~0 256)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (= ~__unbuffered_p2_EBX~0 0) (= ~z$r_buff1_thd1~0 0) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)) (<= ~z$w_buff1_used~0 0))) (= ~__unbuffered_p0_EBX~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EAX~0 0))) (= ~z$w_buff0~0 1)), Black: 103#(and (= ~__unbuffered_cnt~0 0) (or (and (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$r_buff1_thd2~0 (* 256 (div ~z$r_buff1_thd2~0 256))) (= ~z$r_buff1_thd3~0 (* 256 (div ~z$r_buff1_thd3~0 256))) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~z$r_buff1_thd0~0 (* (div ~z$r_buff1_thd0~0 256) 256)) (= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$r_buff0_thd1~0 (* 256 (div ~z$r_buff0_thd1~0 256))) (= ~x~0 1) (<= ~z$w_buff0_used~0 (* 256 (div ~z$w_buff0_used~0 256))) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0)), 10#L801true, P0Thread1of1ForFork0InUse, P1Thread1of1ForFork2InUse, P2Thread1of1ForFork1InUse, Black: 239#(and (or (and (= ~__unbuffered_cnt~0 0) (= (* 256 (div ~z$r_buff0_thd0~0 256)) ~z$r_buff0_thd0~0) (= ~__unbuffered_p1_EAX~0 1) (= ~z$w_buff0_used~0 1) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 (* 256 (div ~z$read_delayed~0 256))) (= (* 256 (div ~z$r_buff0_thd3~0 256)) ~z$r_buff0_thd3~0) (= ~z$r_buff0_thd1~0 1) (= ~__unbuffered_p0_EAX~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$mem_tmp~0 0) (= (* (div ~z$flush_delayed~0 256) 256) ~z$flush_delayed~0) (= ~x~0 1) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$r_buff1_thd0~0 0) (= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (= (* (div ~z$r_buff0_thd2~0 256) 256) ~z$r_buff0_thd2~0)) (= |#ghost~multithreaded| 0)) (= ~y~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$w_buff0~0 1)), Black: 120#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (or (= |#ghost~multithreaded| 0) (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 112#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 118#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (or (and (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1))) (= |#ghost~multithreaded| 0)) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 175#(and (= ~__unbuffered_cnt~0 0) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 58#(and (= ~__unbuffered_cnt~0 0) (= 0 ~z$flush_delayed~0) (= ~x~0 0) (= ~z$w_buff1_used~0 0) (= ~z$r_buff0_thd3~0 0) (= ~z$w_buff1~0 0) (= ~z$read_delayed~0 0) (= ~__unbuffered_p1_EAX~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$r_buff1_thd3~0 0) (= ~z$r_buff0_thd2~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$r_buff0_thd0~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~z$r_buff1_thd1~0 0) (= ~z$r_buff0_thd1~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0_used~0 0) (= ~z$r_buff1_thd2~0 0) (= ~z$r_buff1_thd0~0 0)), Black: 186#(and (= ~__unbuffered_cnt~0 0) (or (= |#ghost~multithreaded| 0) (and (= ~__unbuffered_p1_EAX~0 1) (<= ~z$flush_delayed~0 (+ (* (div ~z$flush_delayed~0 256) 256) 1)) (<= ~z$w_buff0_used~0 (+ (* 256 (div ~z$w_buff0_used~0 256)) 1)) (<= ~z$r_buff1_thd1~0 (* (div ~z$r_buff1_thd1~0 256) 256)) (<= ~z$w_buff1_used~0 (* 256 (div ~z$w_buff1_used~0 256))) (<= ~z$r_buff0_thd1~0 (+ (* 256 (div ~z$r_buff0_thd1~0 256)) 1)) (<= ~z$r_buff1_thd0~0 (+ (* (div ~z$r_buff1_thd0~0 256) 256) 1)) (<= ~z$r_buff1_thd2~0 (+ (* 256 (div ~z$r_buff1_thd2~0 256)) 1)) (<= ~z$r_buff0_thd2~0 (+ (* (div ~z$r_buff0_thd2~0 256) 256) 1)) (<= ~z$r_buff1_thd3~0 (+ (* 256 (div ~z$r_buff1_thd3~0 256)) 1)) (= ~x~0 1) (<= ~z$r_buff0_thd0~0 (+ (* 256 (div ~z$r_buff0_thd0~0 256)) 1)) (<= ~z$r_buff0_thd3~0 (+ (* 256 (div ~z$r_buff0_thd3~0 256)) 1)) (<= ~z$read_delayed~0 (+ (* 256 (div ~z$read_delayed~0 256)) 1)))) (= ~z$w_buff1~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0) (= ~z$w_buff0~0 1)), Black: 174#(and (= ~__unbuffered_cnt~0 0) (= ~__unbuffered_p0_EAX~0 0) (= ~y~0 0) (= ~__unbuffered_p0_EBX~0 0) (= ~z$mem_tmp~0 0) (= ~__unbuffered_p1_EBX~0 0) (= ~z$w_buff0~0 0) (= ~__unbuffered_p2_EBX~0 0) (= ~z~0 0) (= ~__unbuffered_p2_EAX~0 0))]) [2024-06-21 18:19:00,800 INFO L294 olderBase$Statistics]: this new event has 19 ancestors and is not cut-off event [2024-06-21 18:19:00,800 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is not cut-off event [2024-06-21 18:19:00,800 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is not cut-off event [2024-06-21 18:19:00,801 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is not cut-off event [2024-06-21 18:19:01,078 INFO L124 PetriNetUnfolderBase]: 2641/4055 cut-off events. [2024-06-21 18:19:01,078 INFO L125 PetriNetUnfolderBase]: For 81080/81120 co-relation queries the response was YES. [2024-06-21 18:19:01,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21789 conditions, 4055 events. 2641/4055 cut-off events. For 81080/81120 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 20883 event pairs, 1403 based on Foata normal form. 4/4019 useless extension candidates. Maximal degree in co-relation 21735. Up to 3826 conditions per place. [2024-06-21 18:19:01,108 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 133 selfloop transitions, 10 changer transitions 0/196 dead transitions. [2024-06-21 18:19:01,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 196 transitions, 2271 flow [2024-06-21 18:19:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-21 18:19:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-21 18:19:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-06-21 18:19:01,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4372093023255814 [2024-06-21 18:19:01,109 INFO L175 Difference]: Start difference. First operand has 114 places, 186 transitions, 1941 flow. Second operand 5 states and 94 transitions. [2024-06-21 18:19:01,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 196 transitions, 2271 flow [2024-06-21 18:19:01,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 196 transitions, 2145 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-06-21 18:19:01,168 INFO L231 Difference]: Finished difference. Result has 113 places, 189 transitions, 1869 flow [2024-06-21 18:19:01,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1815, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1869, PETRI_PLACES=113, PETRI_TRANSITIONS=189} [2024-06-21 18:19:01,169 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 69 predicate places. [2024-06-21 18:19:01,169 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 189 transitions, 1869 flow [2024-06-21 18:19:01,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:01,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:01,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:01,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-06-21 18:19:01,170 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)] === [2024-06-21 18:19:01,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:01,170 INFO L85 PathProgramCache]: Analyzing trace with hash 204108420, now seen corresponding path program 1 times [2024-06-21 18:19:01,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:01,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983915329] [2024-06-21 18:19:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:01,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:02,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:02,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983915329] [2024-06-21 18:19:02,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983915329] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:02,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:02,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:02,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694607880] [2024-06-21 18:19:02,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:02,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:02,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:02,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:02,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:02,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:02,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 189 transitions, 1869 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) [2024-06-21 18:19:02,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:02,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:02,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:03,574 INFO L124 PetriNetUnfolderBase]: 2379/3661 cut-off events. [2024-06-21 18:19:03,574 INFO L125 PetriNetUnfolderBase]: For 75384/75406 co-relation queries the response was YES. [2024-06-21 18:19:03,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20377 conditions, 3661 events. 2379/3661 cut-off events. For 75384/75406 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 18752 event pairs, 1021 based on Foata normal form. 6/3635 useless extension candidates. Maximal degree in co-relation 20321. Up to 3315 conditions per place. [2024-06-21 18:19:03,598 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 158 selfloop transitions, 57 changer transitions 0/221 dead transitions. [2024-06-21 18:19:03,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 221 transitions, 2439 flow [2024-06-21 18:19:03,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2024-06-21 18:19:03,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48255813953488375 [2024-06-21 18:19:03,600 INFO L175 Difference]: Start difference. First operand has 113 places, 189 transitions, 1869 flow. Second operand 8 states and 166 transitions. [2024-06-21 18:19:03,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 221 transitions, 2439 flow [2024-06-21 18:19:03,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 221 transitions, 2419 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-06-21 18:19:03,660 INFO L231 Difference]: Finished difference. Result has 118 places, 192 transitions, 2010 flow [2024-06-21 18:19:03,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1849, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2010, PETRI_PLACES=118, PETRI_TRANSITIONS=192} [2024-06-21 18:19:03,660 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 74 predicate places. [2024-06-21 18:19:03,660 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 192 transitions, 2010 flow [2024-06-21 18:19:03,660 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) [2024-06-21 18:19:03,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:03,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:03,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-06-21 18:19:03,661 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)] === [2024-06-21 18:19:03,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:03,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1873568638, now seen corresponding path program 1 times [2024-06-21 18:19:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:03,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991047952] [2024-06-21 18:19:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:03,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:04,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991047952] [2024-06-21 18:19:04,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991047952] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:04,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:04,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:04,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133364504] [2024-06-21 18:19:04,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:04,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:04,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:04,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 192 transitions, 2010 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) [2024-06-21 18:19:04,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:04,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:04,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:05,477 INFO L124 PetriNetUnfolderBase]: 2466/3782 cut-off events. [2024-06-21 18:19:05,477 INFO L125 PetriNetUnfolderBase]: For 83824/83849 co-relation queries the response was YES. [2024-06-21 18:19:05,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21939 conditions, 3782 events. 2466/3782 cut-off events. For 83824/83849 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 19347 event pairs, 944 based on Foata normal form. 8/3763 useless extension candidates. Maximal degree in co-relation 21882. Up to 3401 conditions per place. [2024-06-21 18:19:05,502 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 192 selfloop transitions, 57 changer transitions 0/255 dead transitions. [2024-06-21 18:19:05,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 255 transitions, 2958 flow [2024-06-21 18:19:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:19:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:19:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 215 transitions. [2024-06-21 18:19:05,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-06-21 18:19:05,504 INFO L175 Difference]: Start difference. First operand has 118 places, 192 transitions, 2010 flow. Second operand 11 states and 215 transitions. [2024-06-21 18:19:05,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 255 transitions, 2958 flow [2024-06-21 18:19:05,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 255 transitions, 2823 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-06-21 18:19:05,573 INFO L231 Difference]: Finished difference. Result has 125 places, 209 transitions, 2188 flow [2024-06-21 18:19:05,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=1877, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2188, PETRI_PLACES=125, PETRI_TRANSITIONS=209} [2024-06-21 18:19:05,574 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 81 predicate places. [2024-06-21 18:19:05,574 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 209 transitions, 2188 flow [2024-06-21 18:19:05,574 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) [2024-06-21 18:19:05,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:05,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:05,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-06-21 18:19:05,574 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)] === [2024-06-21 18:19:05,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash -927716516, now seen corresponding path program 2 times [2024-06-21 18:19:05,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:05,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145398601] [2024-06-21 18:19:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:06,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:06,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145398601] [2024-06-21 18:19:06,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145398601] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:06,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:06,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:06,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453799284] [2024-06-21 18:19:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:06,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:06,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:06,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:06,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:06,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:06,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 209 transitions, 2188 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) [2024-06-21 18:19:06,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:06,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:06,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:07,611 INFO L124 PetriNetUnfolderBase]: 2532/3900 cut-off events. [2024-06-21 18:19:07,611 INFO L125 PetriNetUnfolderBase]: For 91458/91473 co-relation queries the response was YES. [2024-06-21 18:19:07,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23266 conditions, 3900 events. 2532/3900 cut-off events. For 91458/91473 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20076 event pairs, 957 based on Foata normal form. 10/3895 useless extension candidates. Maximal degree in co-relation 23205. Up to 3495 conditions per place. [2024-06-21 18:19:07,636 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 194 selfloop transitions, 64 changer transitions 0/264 dead transitions. [2024-06-21 18:19:07,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 264 transitions, 3074 flow [2024-06-21 18:19:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-21 18:19:07,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625322997416021 [2024-06-21 18:19:07,637 INFO L175 Difference]: Start difference. First operand has 125 places, 209 transitions, 2188 flow. Second operand 9 states and 179 transitions. [2024-06-21 18:19:07,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 264 transitions, 3074 flow [2024-06-21 18:19:07,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 264 transitions, 2894 flow, removed 69 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:07,709 INFO L231 Difference]: Finished difference. Result has 131 places, 230 transitions, 2426 flow [2024-06-21 18:19:07,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2074, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2426, PETRI_PLACES=131, PETRI_TRANSITIONS=230} [2024-06-21 18:19:07,709 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 87 predicate places. [2024-06-21 18:19:07,709 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 230 transitions, 2426 flow [2024-06-21 18:19:07,709 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) [2024-06-21 18:19:07,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:07,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:07,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-06-21 18:19:07,710 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)] === [2024-06-21 18:19:07,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:07,710 INFO L85 PathProgramCache]: Analyzing trace with hash -917419556, now seen corresponding path program 3 times [2024-06-21 18:19:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:07,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126606227] [2024-06-21 18:19:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:07,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:08,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126606227] [2024-06-21 18:19:08,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126606227] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:08,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425679410] [2024-06-21 18:19:08,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:08,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:08,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:08,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 230 transitions, 2426 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) [2024-06-21 18:19:08,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:08,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:08,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:09,616 INFO L124 PetriNetUnfolderBase]: 2575/3967 cut-off events. [2024-06-21 18:19:09,617 INFO L125 PetriNetUnfolderBase]: For 98546/98558 co-relation queries the response was YES. [2024-06-21 18:19:09,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24035 conditions, 3967 events. 2575/3967 cut-off events. For 98546/98558 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20430 event pairs, 889 based on Foata normal form. 8/3963 useless extension candidates. Maximal degree in co-relation 23971. Up to 3250 conditions per place. [2024-06-21 18:19:09,645 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 142 selfloop transitions, 131 changer transitions 0/279 dead transitions. [2024-06-21 18:19:09,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 279 transitions, 3408 flow [2024-06-21 18:19:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:09,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2024-06-21 18:19:09,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806201550387597 [2024-06-21 18:19:09,646 INFO L175 Difference]: Start difference. First operand has 131 places, 230 transitions, 2426 flow. Second operand 9 states and 186 transitions. [2024-06-21 18:19:09,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 279 transitions, 3408 flow [2024-06-21 18:19:09,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 279 transitions, 3301 flow, removed 21 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:09,735 INFO L231 Difference]: Finished difference. Result has 137 places, 241 transitions, 2791 flow [2024-06-21 18:19:09,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2791, PETRI_PLACES=137, PETRI_TRANSITIONS=241} [2024-06-21 18:19:09,735 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 93 predicate places. [2024-06-21 18:19:09,735 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 241 transitions, 2791 flow [2024-06-21 18:19:09,735 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) [2024-06-21 18:19:09,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:09,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:09,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-06-21 18:19:09,736 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)] === [2024-06-21 18:19:09,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:09,736 INFO L85 PathProgramCache]: Analyzing trace with hash -927596360, now seen corresponding path program 2 times [2024-06-21 18:19:09,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:09,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994385380] [2024-06-21 18:19:09,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:09,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:10,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:10,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994385380] [2024-06-21 18:19:10,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994385380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:10,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:10,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:10,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573451291] [2024-06-21 18:19:10,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:10,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:10,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:10,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:10,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:10,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:10,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 241 transitions, 2791 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) [2024-06-21 18:19:10,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:10,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:10,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:11,729 INFO L124 PetriNetUnfolderBase]: 2702/4133 cut-off events. [2024-06-21 18:19:11,730 INFO L125 PetriNetUnfolderBase]: For 120078/120125 co-relation queries the response was YES. [2024-06-21 18:19:11,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26430 conditions, 4133 events. 2702/4133 cut-off events. For 120078/120125 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 21495 event pairs, 966 based on Foata normal form. 8/4099 useless extension candidates. Maximal degree in co-relation 26364. Up to 3511 conditions per place. [2024-06-21 18:19:11,763 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 164 selfloop transitions, 120 changer transitions 0/290 dead transitions. [2024-06-21 18:19:11,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 290 transitions, 3813 flow [2024-06-21 18:19:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2024-06-21 18:19:11,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806201550387597 [2024-06-21 18:19:11,764 INFO L175 Difference]: Start difference. First operand has 137 places, 241 transitions, 2791 flow. Second operand 9 states and 186 transitions. [2024-06-21 18:19:11,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 290 transitions, 3813 flow [2024-06-21 18:19:11,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 290 transitions, 3651 flow, removed 34 selfloop flow, removed 5 redundant places. [2024-06-21 18:19:11,883 INFO L231 Difference]: Finished difference. Result has 142 places, 254 transitions, 3094 flow [2024-06-21 18:19:11,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2635, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3094, PETRI_PLACES=142, PETRI_TRANSITIONS=254} [2024-06-21 18:19:11,883 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 98 predicate places. [2024-06-21 18:19:11,883 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 254 transitions, 3094 flow [2024-06-21 18:19:11,884 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) [2024-06-21 18:19:11,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:11,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:11,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-06-21 18:19:11,884 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)] === [2024-06-21 18:19:11,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1797983476, now seen corresponding path program 4 times [2024-06-21 18:19:11,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:11,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843380963] [2024-06-21 18:19:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:13,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:13,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843380963] [2024-06-21 18:19:13,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843380963] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:13,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:13,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:19:13,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725119740] [2024-06-21 18:19:13,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:13,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:19:13,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:13,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:19:13,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:19:14,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:14,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 254 transitions, 3094 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:14,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:14,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:14,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:15,238 INFO L124 PetriNetUnfolderBase]: 2766/4251 cut-off events. [2024-06-21 18:19:15,239 INFO L125 PetriNetUnfolderBase]: For 121517/121532 co-relation queries the response was YES. [2024-06-21 18:19:15,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27412 conditions, 4251 events. 2766/4251 cut-off events. For 121517/121532 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 22146 event pairs, 1012 based on Foata normal form. 8/4240 useless extension candidates. Maximal degree in co-relation 27344. Up to 3887 conditions per place. [2024-06-21 18:19:15,270 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 254 selfloop transitions, 54 changer transitions 0/314 dead transitions. [2024-06-21 18:19:15,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 314 transitions, 4170 flow [2024-06-21 18:19:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:15,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2024-06-21 18:19:15,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470284237726098 [2024-06-21 18:19:15,271 INFO L175 Difference]: Start difference. First operand has 142 places, 254 transitions, 3094 flow. Second operand 9 states and 173 transitions. [2024-06-21 18:19:15,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 314 transitions, 4170 flow [2024-06-21 18:19:15,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 314 transitions, 4053 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:15,419 INFO L231 Difference]: Finished difference. Result has 149 places, 282 transitions, 3503 flow [2024-06-21 18:19:15,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=2977, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3503, PETRI_PLACES=149, PETRI_TRANSITIONS=282} [2024-06-21 18:19:15,419 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 105 predicate places. [2024-06-21 18:19:15,419 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 282 transitions, 3503 flow [2024-06-21 18:19:15,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:15,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:15,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:15,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-06-21 18:19:15,420 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)] === [2024-06-21 18:19:15,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:15,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1797863320, now seen corresponding path program 3 times [2024-06-21 18:19:15,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:15,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579953490] [2024-06-21 18:19:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:15,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:17,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:17,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579953490] [2024-06-21 18:19:17,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579953490] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:17,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:17,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:17,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417760805] [2024-06-21 18:19:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:17,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:17,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:17,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:17,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:17,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:17,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 282 transitions, 3503 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) [2024-06-21 18:19:17,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:17,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:17,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:18,262 INFO L124 PetriNetUnfolderBase]: 2875/4428 cut-off events. [2024-06-21 18:19:18,262 INFO L125 PetriNetUnfolderBase]: For 135053/135076 co-relation queries the response was YES. [2024-06-21 18:19:18,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29156 conditions, 4428 events. 2875/4428 cut-off events. For 135053/135076 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 23456 event pairs, 1045 based on Foata normal form. 8/4414 useless extension candidates. Maximal degree in co-relation 29084. Up to 3864 conditions per place. [2024-06-21 18:19:18,297 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 223 selfloop transitions, 103 changer transitions 0/332 dead transitions. [2024-06-21 18:19:18,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 332 transitions, 4610 flow [2024-06-21 18:19:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2024-06-21 18:19:18,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 18:19:18,298 INFO L175 Difference]: Start difference. First operand has 149 places, 282 transitions, 3503 flow. Second operand 8 states and 172 transitions. [2024-06-21 18:19:18,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 332 transitions, 4610 flow [2024-06-21 18:19:18,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 332 transitions, 4515 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:18,450 INFO L231 Difference]: Finished difference. Result has 153 places, 297 transitions, 3832 flow [2024-06-21 18:19:18,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3408, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3832, PETRI_PLACES=153, PETRI_TRANSITIONS=297} [2024-06-21 18:19:18,450 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 109 predicate places. [2024-06-21 18:19:18,450 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 297 transitions, 3832 flow [2024-06-21 18:19:18,451 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) [2024-06-21 18:19:18,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:18,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:18,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-06-21 18:19:18,451 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)] === [2024-06-21 18:19:18,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash -116026596, now seen corresponding path program 5 times [2024-06-21 18:19:18,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:18,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578593881] [2024-06-21 18:19:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:20,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578593881] [2024-06-21 18:19:20,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578593881] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:20,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:20,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:20,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630899882] [2024-06-21 18:19:20,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:20,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:20,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:20,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:20,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:20,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 297 transitions, 3832 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) [2024-06-21 18:19:20,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:20,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:20,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:21,370 INFO L124 PetriNetUnfolderBase]: 2977/4580 cut-off events. [2024-06-21 18:19:21,370 INFO L125 PetriNetUnfolderBase]: For 147979/148002 co-relation queries the response was YES. [2024-06-21 18:19:21,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30763 conditions, 4580 events. 2977/4580 cut-off events. For 147979/148002 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 24353 event pairs, 1040 based on Foata normal form. 10/4569 useless extension candidates. Maximal degree in co-relation 30691. Up to 4011 conditions per place. [2024-06-21 18:19:21,409 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 240 selfloop transitions, 105 changer transitions 0/351 dead transitions. [2024-06-21 18:19:21,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 351 transitions, 5011 flow [2024-06-21 18:19:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2024-06-21 18:19:21,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49709302325581395 [2024-06-21 18:19:21,411 INFO L175 Difference]: Start difference. First operand has 153 places, 297 transitions, 3832 flow. Second operand 8 states and 171 transitions. [2024-06-21 18:19:21,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 351 transitions, 5011 flow [2024-06-21 18:19:21,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 351 transitions, 4870 flow, removed 26 selfloop flow, removed 5 redundant places. [2024-06-21 18:19:21,580 INFO L231 Difference]: Finished difference. Result has 156 places, 312 transitions, 4117 flow [2024-06-21 18:19:21,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3691, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4117, PETRI_PLACES=156, PETRI_TRANSITIONS=312} [2024-06-21 18:19:21,581 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 112 predicate places. [2024-06-21 18:19:21,581 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 312 transitions, 4117 flow [2024-06-21 18:19:21,581 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) [2024-06-21 18:19:21,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:21,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:21,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-06-21 18:19:21,581 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)] === [2024-06-21 18:19:21,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash 204101910, now seen corresponding path program 4 times [2024-06-21 18:19:21,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:21,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210253329] [2024-06-21 18:19:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:21,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:23,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:23,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210253329] [2024-06-21 18:19:23,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210253329] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:23,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:23,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65898580] [2024-06-21 18:19:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:23,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:23,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:23,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:23,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:23,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:23,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 312 transitions, 4117 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) [2024-06-21 18:19:23,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:23,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:23,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:24,254 INFO L124 PetriNetUnfolderBase]: 2979/4579 cut-off events. [2024-06-21 18:19:24,254 INFO L125 PetriNetUnfolderBase]: For 155876/155899 co-relation queries the response was YES. [2024-06-21 18:19:24,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31373 conditions, 4579 events. 2979/4579 cut-off events. For 155876/155899 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 24340 event pairs, 1045 based on Foata normal form. 5/4562 useless extension candidates. Maximal degree in co-relation 31300. Up to 4155 conditions per place. [2024-06-21 18:19:24,288 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 273 selfloop transitions, 72 changer transitions 0/351 dead transitions. [2024-06-21 18:19:24,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 351 transitions, 5070 flow [2024-06-21 18:19:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2024-06-21 18:19:24,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48546511627906974 [2024-06-21 18:19:24,289 INFO L175 Difference]: Start difference. First operand has 156 places, 312 transitions, 4117 flow. Second operand 8 states and 167 transitions. [2024-06-21 18:19:24,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 351 transitions, 5070 flow [2024-06-21 18:19:24,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 351 transitions, 4940 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:24,470 INFO L231 Difference]: Finished difference. Result has 161 places, 322 transitions, 4299 flow [2024-06-21 18:19:24,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=3987, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4299, PETRI_PLACES=161, PETRI_TRANSITIONS=322} [2024-06-21 18:19:24,471 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 117 predicate places. [2024-06-21 18:19:24,471 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 322 transitions, 4299 flow [2024-06-21 18:19:24,471 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) [2024-06-21 18:19:24,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:24,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:24,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-06-21 18:19:24,471 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)] === [2024-06-21 18:19:24,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:24,472 INFO L85 PathProgramCache]: Analyzing trace with hash -111384966, now seen corresponding path program 6 times [2024-06-21 18:19:24,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:24,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654169945] [2024-06-21 18:19:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:24,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:25,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:25,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654169945] [2024-06-21 18:19:25,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654169945] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:25,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:25,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:25,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10340256] [2024-06-21 18:19:25,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:25,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:25,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:25,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:25,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:26,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:26,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 322 transitions, 4299 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) [2024-06-21 18:19:26,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:26,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:26,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:27,009 INFO L124 PetriNetUnfolderBase]: 2983/4588 cut-off events. [2024-06-21 18:19:27,009 INFO L125 PetriNetUnfolderBase]: For 165364/165387 co-relation queries the response was YES. [2024-06-21 18:19:27,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32002 conditions, 4588 events. 2983/4588 cut-off events. For 165364/165387 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 24369 event pairs, 1045 based on Foata normal form. 10/4577 useless extension candidates. Maximal degree in co-relation 31926. Up to 4223 conditions per place. [2024-06-21 18:19:27,116 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 296 selfloop transitions, 52 changer transitions 0/354 dead transitions. [2024-06-21 18:19:27,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 354 transitions, 5184 flow [2024-06-21 18:19:27,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2024-06-21 18:19:27,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738372093023256 [2024-06-21 18:19:27,118 INFO L175 Difference]: Start difference. First operand has 161 places, 322 transitions, 4299 flow. Second operand 8 states and 163 transitions. [2024-06-21 18:19:27,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 354 transitions, 5184 flow [2024-06-21 18:19:27,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 354 transitions, 5065 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:27,300 INFO L231 Difference]: Finished difference. Result has 165 places, 325 transitions, 4352 flow [2024-06-21 18:19:27,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=4180, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4352, PETRI_PLACES=165, PETRI_TRANSITIONS=325} [2024-06-21 18:19:27,301 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 121 predicate places. [2024-06-21 18:19:27,301 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 325 transitions, 4352 flow [2024-06-21 18:19:27,301 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) [2024-06-21 18:19:27,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:27,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:27,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-06-21 18:19:27,302 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)] === [2024-06-21 18:19:27,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 411371882, now seen corresponding path program 7 times [2024-06-21 18:19:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:27,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98729594] [2024-06-21 18:19:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98729594] [2024-06-21 18:19:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98729594] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:29,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:29,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430435060] [2024-06-21 18:19:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:29,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:29,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:29,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:29,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 325 transitions, 4352 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) [2024-06-21 18:19:29,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:29,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:29,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:30,293 INFO L124 PetriNetUnfolderBase]: 3085/4731 cut-off events. [2024-06-21 18:19:30,293 INFO L125 PetriNetUnfolderBase]: For 178985/179008 co-relation queries the response was YES. [2024-06-21 18:19:30,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33287 conditions, 4731 events. 3085/4731 cut-off events. For 178985/179008 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 25222 event pairs, 1169 based on Foata normal form. 6/4710 useless extension candidates. Maximal degree in co-relation 33209. Up to 4333 conditions per place. [2024-06-21 18:19:30,340 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 313 selfloop transitions, 57 changer transitions 0/376 dead transitions. [2024-06-21 18:19:30,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 376 transitions, 5532 flow [2024-06-21 18:19:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2024-06-21 18:19:30,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4476744186046512 [2024-06-21 18:19:30,341 INFO L175 Difference]: Start difference. First operand has 165 places, 325 transitions, 4352 flow. Second operand 8 states and 154 transitions. [2024-06-21 18:19:30,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 376 transitions, 5532 flow [2024-06-21 18:19:30,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 376 transitions, 5341 flow, removed 48 selfloop flow, removed 6 redundant places. [2024-06-21 18:19:30,619 INFO L231 Difference]: Finished difference. Result has 168 places, 350 transitions, 4699 flow [2024-06-21 18:19:30,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=4161, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4699, PETRI_PLACES=168, PETRI_TRANSITIONS=350} [2024-06-21 18:19:30,620 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 124 predicate places. [2024-06-21 18:19:30,620 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 350 transitions, 4699 flow [2024-06-21 18:19:30,620 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) [2024-06-21 18:19:30,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:30,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:30,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-06-21 18:19:30,621 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)] === [2024-06-21 18:19:30,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 411492038, now seen corresponding path program 5 times [2024-06-21 18:19:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466186461] [2024-06-21 18:19:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:32,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:32,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466186461] [2024-06-21 18:19:32,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466186461] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:32,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:32,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:32,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720630334] [2024-06-21 18:19:32,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:32,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:32,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:32,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:32,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:32,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:32,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 350 transitions, 4699 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) [2024-06-21 18:19:32,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:32,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:32,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:33,194 INFO L124 PetriNetUnfolderBase]: 3180/4879 cut-off events. [2024-06-21 18:19:33,194 INFO L125 PetriNetUnfolderBase]: For 190638/190664 co-relation queries the response was YES. [2024-06-21 18:19:33,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34561 conditions, 4879 events. 3180/4879 cut-off events. For 190638/190664 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 26171 event pairs, 1189 based on Foata normal form. 6/4856 useless extension candidates. Maximal degree in co-relation 34480. Up to 4289 conditions per place. [2024-06-21 18:19:33,240 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 293 selfloop transitions, 105 changer transitions 0/404 dead transitions. [2024-06-21 18:19:33,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 404 transitions, 6051 flow [2024-06-21 18:19:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-21 18:19:33,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-21 18:19:33,242 INFO L175 Difference]: Start difference. First operand has 168 places, 350 transitions, 4699 flow. Second operand 8 states and 161 transitions. [2024-06-21 18:19:33,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 404 transitions, 6051 flow [2024-06-21 18:19:33,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 404 transitions, 5950 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-21 18:19:33,515 INFO L231 Difference]: Finished difference. Result has 173 places, 373 transitions, 5229 flow [2024-06-21 18:19:33,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=4598, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5229, PETRI_PLACES=173, PETRI_TRANSITIONS=373} [2024-06-21 18:19:33,516 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 129 predicate places. [2024-06-21 18:19:33,516 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 373 transitions, 5229 flow [2024-06-21 18:19:33,516 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) [2024-06-21 18:19:33,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:33,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:33,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-06-21 18:19:33,516 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)] === [2024-06-21 18:19:33,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1650322704, now seen corresponding path program 8 times [2024-06-21 18:19:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:33,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363303179] [2024-06-21 18:19:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:33,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:35,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363303179] [2024-06-21 18:19:35,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363303179] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:35,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:35,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:35,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145002854] [2024-06-21 18:19:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:35,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:35,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:35,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:35,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 373 transitions, 5229 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) [2024-06-21 18:19:35,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:35,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:35,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:36,194 INFO L124 PetriNetUnfolderBase]: 3258/4987 cut-off events. [2024-06-21 18:19:36,195 INFO L125 PetriNetUnfolderBase]: For 203522/203548 co-relation queries the response was YES. [2024-06-21 18:19:36,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36137 conditions, 4987 events. 3258/4987 cut-off events. For 203522/203548 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 26823 event pairs, 1184 based on Foata normal form. 8/4967 useless extension candidates. Maximal degree in co-relation 36053. Up to 4368 conditions per place. [2024-06-21 18:19:36,252 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 296 selfloop transitions, 119 changer transitions 0/421 dead transitions. [2024-06-21 18:19:36,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 421 transitions, 6524 flow [2024-06-21 18:19:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-06-21 18:19:36,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680232558139535 [2024-06-21 18:19:36,255 INFO L175 Difference]: Start difference. First operand has 173 places, 373 transitions, 5229 flow. Second operand 8 states and 161 transitions. [2024-06-21 18:19:36,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 421 transitions, 6524 flow [2024-06-21 18:19:36,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 421 transitions, 6365 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-06-21 18:19:36,614 INFO L231 Difference]: Finished difference. Result has 178 places, 388 transitions, 5572 flow [2024-06-21 18:19:36,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5070, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5572, PETRI_PLACES=178, PETRI_TRANSITIONS=388} [2024-06-21 18:19:36,615 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 134 predicate places. [2024-06-21 18:19:36,615 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 388 transitions, 5572 flow [2024-06-21 18:19:36,615 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) [2024-06-21 18:19:36,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:36,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:36,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-06-21 18:19:36,615 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)] === [2024-06-21 18:19:36,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1736370086, now seen corresponding path program 6 times [2024-06-21 18:19:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:36,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302601636] [2024-06-21 18:19:36,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:36,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:37,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:37,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302601636] [2024-06-21 18:19:37,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302601636] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:37,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:37,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:19:37,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218045843] [2024-06-21 18:19:37,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:37,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:19:37,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:37,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:19:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:19:38,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:38,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 388 transitions, 5572 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:38,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:38,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:38,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:39,111 INFO L124 PetriNetUnfolderBase]: 3319/5090 cut-off events. [2024-06-21 18:19:39,112 INFO L125 PetriNetUnfolderBase]: For 220373/220399 co-relation queries the response was YES. [2024-06-21 18:19:39,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37471 conditions, 5090 events. 3319/5090 cut-off events. For 220373/220399 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 27517 event pairs, 1227 based on Foata normal form. 10/5071 useless extension candidates. Maximal degree in co-relation 37385. Up to 4623 conditions per place. [2024-06-21 18:19:39,164 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 353 selfloop transitions, 70 changer transitions 0/429 dead transitions. [2024-06-21 18:19:39,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 429 transitions, 6800 flow [2024-06-21 18:19:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2024-06-21 18:19:39,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4315245478036176 [2024-06-21 18:19:39,165 INFO L175 Difference]: Start difference. First operand has 178 places, 388 transitions, 5572 flow. Second operand 9 states and 167 transitions. [2024-06-21 18:19:39,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 429 transitions, 6800 flow [2024-06-21 18:19:39,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 429 transitions, 6581 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-06-21 18:19:39,526 INFO L231 Difference]: Finished difference. Result has 182 places, 400 transitions, 5754 flow [2024-06-21 18:19:39,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5353, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5754, PETRI_PLACES=182, PETRI_TRANSITIONS=400} [2024-06-21 18:19:39,526 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 138 predicate places. [2024-06-21 18:19:39,526 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 400 transitions, 5754 flow [2024-06-21 18:19:39,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:39,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:39,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:39,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-06-21 18:19:39,527 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:19:39,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1654964520, now seen corresponding path program 7 times [2024-06-21 18:19:39,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:39,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557339666] [2024-06-21 18:19:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:39,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:41,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:41,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557339666] [2024-06-21 18:19:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557339666] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:41,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:41,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:41,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287840743] [2024-06-21 18:19:41,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:41,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:41,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 400 transitions, 5754 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) [2024-06-21 18:19:41,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:41,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:41,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:42,274 INFO L124 PetriNetUnfolderBase]: 3369/5165 cut-off events. [2024-06-21 18:19:42,274 INFO L125 PetriNetUnfolderBase]: For 232592/232623 co-relation queries the response was YES. [2024-06-21 18:19:42,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38591 conditions, 5165 events. 3369/5165 cut-off events. For 232592/232623 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 28014 event pairs, 1222 based on Foata normal form. 8/5144 useless extension candidates. Maximal degree in co-relation 38504. Up to 4628 conditions per place. [2024-06-21 18:19:42,322 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 346 selfloop transitions, 90 changer transitions 0/442 dead transitions. [2024-06-21 18:19:42,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 442 transitions, 7013 flow [2024-06-21 18:19:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2024-06-21 18:19:42,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2024-06-21 18:19:42,324 INFO L175 Difference]: Start difference. First operand has 182 places, 400 transitions, 5754 flow. Second operand 8 states and 160 transitions. [2024-06-21 18:19:42,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 442 transitions, 7013 flow [2024-06-21 18:19:42,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 442 transitions, 6803 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-06-21 18:19:42,630 INFO L231 Difference]: Finished difference. Result has 183 places, 409 transitions, 5945 flow [2024-06-21 18:19:42,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5544, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5945, PETRI_PLACES=183, PETRI_TRANSITIONS=409} [2024-06-21 18:19:42,630 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 139 predicate places. [2024-06-21 18:19:42,631 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 409 transitions, 5945 flow [2024-06-21 18:19:42,631 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) [2024-06-21 18:19:42,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:42,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:42,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-06-21 18:19:42,631 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:19:42,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1654964334, now seen corresponding path program 9 times [2024-06-21 18:19:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:42,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571998258] [2024-06-21 18:19:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:43,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:43,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571998258] [2024-06-21 18:19:43,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571998258] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:43,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:43,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318025054] [2024-06-21 18:19:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:43,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:44,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:44,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 409 transitions, 5945 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) [2024-06-21 18:19:44,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:44,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:44,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:45,075 INFO L124 PetriNetUnfolderBase]: 3419/5235 cut-off events. [2024-06-21 18:19:45,075 INFO L125 PetriNetUnfolderBase]: For 245857/245888 co-relation queries the response was YES. [2024-06-21 18:19:45,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39511 conditions, 5235 events. 3419/5235 cut-off events. For 245857/245888 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 28412 event pairs, 1233 based on Foata normal form. 10/5217 useless extension candidates. Maximal degree in co-relation 39424. Up to 4844 conditions per place. [2024-06-21 18:19:45,129 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 381 selfloop transitions, 54 changer transitions 0/441 dead transitions. [2024-06-21 18:19:45,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 441 transitions, 7087 flow [2024-06-21 18:19:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:45,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2024-06-21 18:19:45,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44476744186046513 [2024-06-21 18:19:45,130 INFO L175 Difference]: Start difference. First operand has 183 places, 409 transitions, 5945 flow. Second operand 8 states and 153 transitions. [2024-06-21 18:19:45,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 441 transitions, 7087 flow [2024-06-21 18:19:45,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 441 transitions, 6826 flow, removed 48 selfloop flow, removed 6 redundant places. [2024-06-21 18:19:45,536 INFO L231 Difference]: Finished difference. Result has 185 places, 418 transitions, 5998 flow [2024-06-21 18:19:45,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5684, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5998, PETRI_PLACES=185, PETRI_TRANSITIONS=418} [2024-06-21 18:19:45,537 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 141 predicate places. [2024-06-21 18:19:45,537 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 418 transitions, 5998 flow [2024-06-21 18:19:45,537 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) [2024-06-21 18:19:45,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:45,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:45,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-06-21 18:19:45,537 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:19:45,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash 775734806, now seen corresponding path program 8 times [2024-06-21 18:19:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:45,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53471519] [2024-06-21 18:19:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:45,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:46,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53471519] [2024-06-21 18:19:46,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53471519] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:46,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:46,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:19:46,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849562087] [2024-06-21 18:19:46,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:46,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:19:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:46,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:19:46,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:19:46,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:46,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 418 transitions, 5998 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:46,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:46,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:46,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:48,036 INFO L124 PetriNetUnfolderBase]: 3469/5313 cut-off events. [2024-06-21 18:19:48,036 INFO L125 PetriNetUnfolderBase]: For 258229/258257 co-relation queries the response was YES. [2024-06-21 18:19:48,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40284 conditions, 5313 events. 3469/5313 cut-off events. For 258229/258257 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 28867 event pairs, 1256 based on Foata normal form. 8/5294 useless extension candidates. Maximal degree in co-relation 40196. Up to 4970 conditions per place. [2024-06-21 18:19:48,082 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 418 selfloop transitions, 28 changer transitions 0/452 dead transitions. [2024-06-21 18:19:48,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 452 transitions, 7227 flow [2024-06-21 18:19:48,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:19:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:19:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 160 transitions. [2024-06-21 18:19:48,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4134366925064599 [2024-06-21 18:19:48,084 INFO L175 Difference]: Start difference. First operand has 185 places, 418 transitions, 5998 flow. Second operand 9 states and 160 transitions. [2024-06-21 18:19:48,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 452 transitions, 7227 flow [2024-06-21 18:19:48,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 452 transitions, 7051 flow, removed 42 selfloop flow, removed 6 redundant places. [2024-06-21 18:19:48,550 INFO L231 Difference]: Finished difference. Result has 189 places, 429 transitions, 6143 flow [2024-06-21 18:19:48,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5822, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6143, PETRI_PLACES=189, PETRI_TRANSITIONS=429} [2024-06-21 18:19:48,551 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 145 predicate places. [2024-06-21 18:19:48,551 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 429 transitions, 6143 flow [2024-06-21 18:19:48,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:48,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:48,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:48,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-06-21 18:19:48,552 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:19:48,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash -949105868, now seen corresponding path program 10 times [2024-06-21 18:19:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:48,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032185893] [2024-06-21 18:19:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:48,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032185893] [2024-06-21 18:19:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032185893] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:49,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:49,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240173907] [2024-06-21 18:19:49,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:49,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:49,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:49,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:50,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:50,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 429 transitions, 6143 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) [2024-06-21 18:19:50,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:50,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:50,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:51,360 INFO L124 PetriNetUnfolderBase]: 3447/5283 cut-off events. [2024-06-21 18:19:51,360 INFO L125 PetriNetUnfolderBase]: For 264284/264312 co-relation queries the response was YES. [2024-06-21 18:19:51,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39971 conditions, 5283 events. 3447/5283 cut-off events. For 264284/264312 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 28687 event pairs, 1250 based on Foata normal form. 8/5264 useless extension candidates. Maximal degree in co-relation 39881. Up to 4930 conditions per place. [2024-06-21 18:19:51,425 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 412 selfloop transitions, 34 changer transitions 0/452 dead transitions. [2024-06-21 18:19:51,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 452 transitions, 7151 flow [2024-06-21 18:19:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:51,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:51,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2024-06-21 18:19:51,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.436046511627907 [2024-06-21 18:19:51,426 INFO L175 Difference]: Start difference. First operand has 189 places, 429 transitions, 6143 flow. Second operand 8 states and 150 transitions. [2024-06-21 18:19:51,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 452 transitions, 7151 flow [2024-06-21 18:19:51,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 452 transitions, 6905 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-06-21 18:19:51,909 INFO L231 Difference]: Finished difference. Result has 190 places, 429 transitions, 5981 flow [2024-06-21 18:19:51,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5897, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5981, PETRI_PLACES=190, PETRI_TRANSITIONS=429} [2024-06-21 18:19:51,910 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 146 predicate places. [2024-06-21 18:19:51,910 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 429 transitions, 5981 flow [2024-06-21 18:19:51,910 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) [2024-06-21 18:19:51,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:51,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:51,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-06-21 18:19:51,910 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:19:51,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:51,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1767544284, now seen corresponding path program 9 times [2024-06-21 18:19:51,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:51,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545082037] [2024-06-21 18:19:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:53,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:53,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545082037] [2024-06-21 18:19:53,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545082037] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:53,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:53,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769759487] [2024-06-21 18:19:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:53,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:53,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:53,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:53,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 429 transitions, 5981 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) [2024-06-21 18:19:53,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:53,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:53,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:54,441 INFO L124 PetriNetUnfolderBase]: 3513/5382 cut-off events. [2024-06-21 18:19:54,441 INFO L125 PetriNetUnfolderBase]: For 278372/278400 co-relation queries the response was YES. [2024-06-21 18:19:54,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40838 conditions, 5382 events. 3513/5382 cut-off events. For 278372/278400 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 29386 event pairs, 1247 based on Foata normal form. 8/5363 useless extension candidates. Maximal degree in co-relation 40748. Up to 4869 conditions per place. [2024-06-21 18:19:54,497 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 398 selfloop transitions, 69 changer transitions 0/473 dead transitions. [2024-06-21 18:19:54,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 473 transitions, 7534 flow [2024-06-21 18:19:54,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:54,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 157 transitions. [2024-06-21 18:19:54,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4563953488372093 [2024-06-21 18:19:54,499 INFO L175 Difference]: Start difference. First operand has 190 places, 429 transitions, 5981 flow. Second operand 8 states and 157 transitions. [2024-06-21 18:19:54,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 473 transitions, 7534 flow [2024-06-21 18:19:54,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 473 transitions, 7253 flow, removed 33 selfloop flow, removed 8 redundant places. [2024-06-21 18:19:54,901 INFO L231 Difference]: Finished difference. Result has 191 places, 441 transitions, 6170 flow [2024-06-21 18:19:54,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5700, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6170, PETRI_PLACES=191, PETRI_TRANSITIONS=441} [2024-06-21 18:19:54,902 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 147 predicate places. [2024-06-21 18:19:54,902 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 441 transitions, 6170 flow [2024-06-21 18:19:54,902 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) [2024-06-21 18:19:54,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:54,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:54,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-06-21 18:19:54,902 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)] === [2024-06-21 18:19:54,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash -949099172, now seen corresponding path program 10 times [2024-06-21 18:19:54,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:54,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341929692] [2024-06-21 18:19:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:54,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:56,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:56,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:56,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341929692] [2024-06-21 18:19:56,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341929692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:56,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:56,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:56,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745900791] [2024-06-21 18:19:56,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:56,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:56,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:56,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:56,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:19:56,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 441 transitions, 6170 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) [2024-06-21 18:19:56,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:56,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:19:56,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:19:57,344 INFO L124 PetriNetUnfolderBase]: 3491/5353 cut-off events. [2024-06-21 18:19:57,344 INFO L125 PetriNetUnfolderBase]: For 287037/287065 co-relation queries the response was YES. [2024-06-21 18:19:57,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40750 conditions, 5353 events. 3491/5353 cut-off events. For 287037/287065 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 29193 event pairs, 1251 based on Foata normal form. 8/5334 useless extension candidates. Maximal degree in co-relation 40659. Up to 4980 conditions per place. [2024-06-21 18:19:57,394 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 422 selfloop transitions, 39 changer transitions 0/467 dead transitions. [2024-06-21 18:19:57,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 467 transitions, 7232 flow [2024-06-21 18:19:57,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:19:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:19:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2024-06-21 18:19:57,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-21 18:19:57,395 INFO L175 Difference]: Start difference. First operand has 191 places, 441 transitions, 6170 flow. Second operand 8 states and 152 transitions. [2024-06-21 18:19:57,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 467 transitions, 7232 flow [2024-06-21 18:19:57,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 467 transitions, 6966 flow, removed 89 selfloop flow, removed 5 redundant places. [2024-06-21 18:19:57,866 INFO L231 Difference]: Finished difference. Result has 195 places, 443 transitions, 6032 flow [2024-06-21 18:19:57,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5904, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6032, PETRI_PLACES=195, PETRI_TRANSITIONS=443} [2024-06-21 18:19:57,867 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 151 predicate places. [2024-06-21 18:19:57,867 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 443 transitions, 6032 flow [2024-06-21 18:19:57,867 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) [2024-06-21 18:19:57,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:19:57,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:19:57,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-06-21 18:19:57,867 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)] === [2024-06-21 18:19:57,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:19:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1758955734, now seen corresponding path program 1 times [2024-06-21 18:19:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:19:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213199767] [2024-06-21 18:19:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:19:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:19:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:19:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:19:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:19:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213199767] [2024-06-21 18:19:59,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213199767] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:19:59,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:19:59,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:19:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658838060] [2024-06-21 18:19:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:19:59,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:19:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:19:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:19:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:19:59,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:19:59,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 443 transitions, 6032 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:19:59,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:19:59,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:19:59,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:00,693 INFO L124 PetriNetUnfolderBase]: 4115/6191 cut-off events. [2024-06-21 18:20:00,693 INFO L125 PetriNetUnfolderBase]: For 331408/331426 co-relation queries the response was YES. [2024-06-21 18:20:00,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46229 conditions, 6191 events. 4115/6191 cut-off events. For 331408/331426 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 32729 event pairs, 1550 based on Foata normal form. 4/6170 useless extension candidates. Maximal degree in co-relation 46136. Up to 5904 conditions per place. [2024-06-21 18:20:00,758 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 446 selfloop transitions, 21 changer transitions 0/472 dead transitions. [2024-06-21 18:20:00,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 472 transitions, 7169 flow [2024-06-21 18:20:00,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:20:00,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:20:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions. [2024-06-21 18:20:00,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3953488372093023 [2024-06-21 18:20:00,760 INFO L175 Difference]: Start difference. First operand has 195 places, 443 transitions, 6032 flow. Second operand 9 states and 153 transitions. [2024-06-21 18:20:00,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 472 transitions, 7169 flow [2024-06-21 18:20:01,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 472 transitions, 7002 flow, removed 52 selfloop flow, removed 5 redundant places. [2024-06-21 18:20:01,352 INFO L231 Difference]: Finished difference. Result has 200 places, 449 transitions, 6016 flow [2024-06-21 18:20:01,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5869, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6016, PETRI_PLACES=200, PETRI_TRANSITIONS=449} [2024-06-21 18:20:01,353 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 156 predicate places. [2024-06-21 18:20:01,354 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 449 transitions, 6016 flow [2024-06-21 18:20:01,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:01,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:01,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:01,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-06-21 18:20:01,354 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:20:01,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash -980279314, now seen corresponding path program 1 times [2024-06-21 18:20:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:01,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853769986] [2024-06-21 18:20:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:02,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853769986] [2024-06-21 18:20:02,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853769986] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:02,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:02,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:20:02,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070870135] [2024-06-21 18:20:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:02,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:20:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:20:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:20:02,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:02,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 449 transitions, 6016 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:02,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:02,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:02,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:03,457 INFO L124 PetriNetUnfolderBase]: 3702/5755 cut-off events. [2024-06-21 18:20:03,457 INFO L125 PetriNetUnfolderBase]: For 335761/335884 co-relation queries the response was YES. [2024-06-21 18:20:03,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42790 conditions, 5755 events. 3702/5755 cut-off events. For 335761/335884 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 31991 event pairs, 1584 based on Foata normal form. 34/5755 useless extension candidates. Maximal degree in co-relation 42695. Up to 5167 conditions per place. [2024-06-21 18:20:03,518 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 330 selfloop transitions, 13 changer transitions 0/462 dead transitions. [2024-06-21 18:20:03,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 462 transitions, 6768 flow [2024-06-21 18:20:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:20:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:20:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-06-21 18:20:03,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263565891472868 [2024-06-21 18:20:03,519 INFO L175 Difference]: Start difference. First operand has 200 places, 449 transitions, 6016 flow. Second operand 6 states and 110 transitions. [2024-06-21 18:20:03,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 462 transitions, 6768 flow [2024-06-21 18:20:04,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 462 transitions, 6671 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-06-21 18:20:04,106 INFO L231 Difference]: Finished difference. Result has 200 places, 452 transitions, 5985 flow [2024-06-21 18:20:04,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5919, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5985, PETRI_PLACES=200, PETRI_TRANSITIONS=452} [2024-06-21 18:20:04,107 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 156 predicate places. [2024-06-21 18:20:04,108 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 452 transitions, 5985 flow [2024-06-21 18:20:04,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:04,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:04,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:04,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-06-21 18:20:04,108 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)] === [2024-06-21 18:20:04,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:04,109 INFO L85 PathProgramCache]: Analyzing trace with hash 959092709, now seen corresponding path program 1 times [2024-06-21 18:20:04,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:04,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110549611] [2024-06-21 18:20:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110549611] [2024-06-21 18:20:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110549611] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:20:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811386240] [2024-06-21 18:20:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:05,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:20:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:20:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:20:06,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:06,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 452 transitions, 5985 flow. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:06,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:06,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:06,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:07,356 INFO L124 PetriNetUnfolderBase]: 3925/6003 cut-off events. [2024-06-21 18:20:07,356 INFO L125 PetriNetUnfolderBase]: For 364026/364054 co-relation queries the response was YES. [2024-06-21 18:20:07,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46454 conditions, 6003 events. 3925/6003 cut-off events. For 364026/364054 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 33278 event pairs, 1225 based on Foata normal form. 12/5979 useless extension candidates. Maximal degree in co-relation 46358. Up to 4704 conditions per place. [2024-06-21 18:20:07,420 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 325 selfloop transitions, 182 changer transitions 0/514 dead transitions. [2024-06-21 18:20:07,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 514 transitions, 7801 flow [2024-06-21 18:20:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 209 transitions. [2024-06-21 18:20:07,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48604651162790696 [2024-06-21 18:20:07,421 INFO L175 Difference]: Start difference. First operand has 200 places, 452 transitions, 5985 flow. Second operand 10 states and 209 transitions. [2024-06-21 18:20:07,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 514 transitions, 7801 flow [2024-06-21 18:20:07,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 514 transitions, 7763 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-06-21 18:20:07,910 INFO L231 Difference]: Finished difference. Result has 206 places, 461 transitions, 6490 flow [2024-06-21 18:20:07,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=5947, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6490, PETRI_PLACES=206, PETRI_TRANSITIONS=461} [2024-06-21 18:20:07,910 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 162 predicate places. [2024-06-21 18:20:07,910 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 461 transitions, 6490 flow [2024-06-21 18:20:07,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:07,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:07,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:07,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-06-21 18:20:07,911 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)] === [2024-06-21 18:20:07,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2048913283, now seen corresponding path program 2 times [2024-06-21 18:20:07,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695879585] [2024-06-21 18:20:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:08,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695879585] [2024-06-21 18:20:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695879585] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:08,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:08,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778817634] [2024-06-21 18:20:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:08,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:09,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:09,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 461 transitions, 6490 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) [2024-06-21 18:20:09,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:09,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:09,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:10,675 INFO L124 PetriNetUnfolderBase]: 4311/6586 cut-off events. [2024-06-21 18:20:10,675 INFO L125 PetriNetUnfolderBase]: For 434569/434598 co-relation queries the response was YES. [2024-06-21 18:20:10,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53360 conditions, 6586 events. 4311/6586 cut-off events. For 434569/434598 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 37198 event pairs, 1141 based on Foata normal form. 16/6563 useless extension candidates. Maximal degree in co-relation 53263. Up to 5502 conditions per place. [2024-06-21 18:20:10,920 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 385 selfloop transitions, 140 changer transitions 0/532 dead transitions. [2024-06-21 18:20:10,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 532 transitions, 8423 flow [2024-06-21 18:20:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-21 18:20:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-21 18:20:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 238 transitions. [2024-06-21 18:20:10,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46124031007751937 [2024-06-21 18:20:10,921 INFO L175 Difference]: Start difference. First operand has 206 places, 461 transitions, 6490 flow. Second operand 12 states and 238 transitions. [2024-06-21 18:20:10,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 532 transitions, 8423 flow [2024-06-21 18:20:11,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 532 transitions, 8192 flow, removed 58 selfloop flow, removed 5 redundant places. [2024-06-21 18:20:11,443 INFO L231 Difference]: Finished difference. Result has 214 places, 480 transitions, 6978 flow [2024-06-21 18:20:11,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=6307, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6978, PETRI_PLACES=214, PETRI_TRANSITIONS=480} [2024-06-21 18:20:11,443 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 170 predicate places. [2024-06-21 18:20:11,443 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 480 transitions, 6978 flow [2024-06-21 18:20:11,444 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) [2024-06-21 18:20:11,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:11,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:11,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-06-21 18:20:11,444 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)] === [2024-06-21 18:20:11,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1305560159, now seen corresponding path program 3 times [2024-06-21 18:20:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:11,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872800495] [2024-06-21 18:20:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:12,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:12,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872800495] [2024-06-21 18:20:12,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872800495] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:12,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:12,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303742785] [2024-06-21 18:20:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:12,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:12,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:12,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:12,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 480 transitions, 6978 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) [2024-06-21 18:20:12,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:12,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:12,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:14,392 INFO L124 PetriNetUnfolderBase]: 4414/6757 cut-off events. [2024-06-21 18:20:14,392 INFO L125 PetriNetUnfolderBase]: For 454551/454586 co-relation queries the response was YES. [2024-06-21 18:20:14,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55305 conditions, 6757 events. 4414/6757 cut-off events. For 454551/454586 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 38554 event pairs, 1259 based on Foata normal form. 22/6742 useless extension candidates. Maximal degree in co-relation 55205. Up to 5960 conditions per place. [2024-06-21 18:20:14,471 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 410 selfloop transitions, 113 changer transitions 0/530 dead transitions. [2024-06-21 18:20:14,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 530 transitions, 8468 flow [2024-06-21 18:20:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 198 transitions. [2024-06-21 18:20:14,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4604651162790698 [2024-06-21 18:20:14,473 INFO L175 Difference]: Start difference. First operand has 214 places, 480 transitions, 6978 flow. Second operand 10 states and 198 transitions. [2024-06-21 18:20:14,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 530 transitions, 8468 flow [2024-06-21 18:20:15,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 530 transitions, 8124 flow, removed 109 selfloop flow, removed 7 redundant places. [2024-06-21 18:20:15,460 INFO L231 Difference]: Finished difference. Result has 217 places, 492 transitions, 7172 flow [2024-06-21 18:20:15,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=6726, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7172, PETRI_PLACES=217, PETRI_TRANSITIONS=492} [2024-06-21 18:20:15,461 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 173 predicate places. [2024-06-21 18:20:15,461 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 492 transitions, 7172 flow [2024-06-21 18:20:15,461 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) [2024-06-21 18:20:15,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:15,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:15,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-06-21 18:20:15,462 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)] === [2024-06-21 18:20:15,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1624771499, now seen corresponding path program 4 times [2024-06-21 18:20:15,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:15,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122655667] [2024-06-21 18:20:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:15,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:16,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122655667] [2024-06-21 18:20:16,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122655667] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:16,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:16,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:16,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996434658] [2024-06-21 18:20:16,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:16,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:16,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:16,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:16,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 492 transitions, 7172 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) [2024-06-21 18:20:16,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:16,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:16,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:18,884 INFO L124 PetriNetUnfolderBase]: 4773/7314 cut-off events. [2024-06-21 18:20:18,884 INFO L125 PetriNetUnfolderBase]: For 506394/506444 co-relation queries the response was YES. [2024-06-21 18:20:18,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60397 conditions, 7314 events. 4773/7314 cut-off events. For 506394/506444 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 42611 event pairs, 1017 based on Foata normal form. 12/7280 useless extension candidates. Maximal degree in co-relation 60295. Up to 4442 conditions per place. [2024-06-21 18:20:18,981 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 224 selfloop transitions, 341 changer transitions 0/572 dead transitions. [2024-06-21 18:20:18,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 572 transitions, 9494 flow [2024-06-21 18:20:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 215 transitions. [2024-06-21 18:20:18,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 18:20:18,982 INFO L175 Difference]: Start difference. First operand has 217 places, 492 transitions, 7172 flow. Second operand 10 states and 215 transitions. [2024-06-21 18:20:18,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 572 transitions, 9494 flow [2024-06-21 18:20:19,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 572 transitions, 9229 flow, removed 43 selfloop flow, removed 7 redundant places. [2024-06-21 18:20:19,777 INFO L231 Difference]: Finished difference. Result has 221 places, 521 transitions, 8223 flow [2024-06-21 18:20:19,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=6907, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8223, PETRI_PLACES=221, PETRI_TRANSITIONS=521} [2024-06-21 18:20:19,778 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 177 predicate places. [2024-06-21 18:20:19,778 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 521 transitions, 8223 flow [2024-06-21 18:20:19,778 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) [2024-06-21 18:20:19,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:19,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:19,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-06-21 18:20:19,778 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)] === [2024-06-21 18:20:19,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:19,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1614041159, now seen corresponding path program 5 times [2024-06-21 18:20:19,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:19,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222225919] [2024-06-21 18:20:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:19,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222225919] [2024-06-21 18:20:20,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222225919] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:20,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:20,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773618813] [2024-06-21 18:20:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:20,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:21,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:21,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 521 transitions, 8223 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) [2024-06-21 18:20:21,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:21,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:21,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:22,743 INFO L124 PetriNetUnfolderBase]: 4741/7270 cut-off events. [2024-06-21 18:20:22,744 INFO L125 PetriNetUnfolderBase]: For 524487/524537 co-relation queries the response was YES. [2024-06-21 18:20:22,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61995 conditions, 7270 events. 4741/7270 cut-off events. For 524487/524537 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 42371 event pairs, 1011 based on Foata normal form. 14/7238 useless extension candidates. Maximal degree in co-relation 61891. Up to 4422 conditions per place. [2024-06-21 18:20:22,832 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 231 selfloop transitions, 333 changer transitions 0/571 dead transitions. [2024-06-21 18:20:22,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 571 transitions, 9904 flow [2024-06-21 18:20:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 215 transitions. [2024-06-21 18:20:22,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-21 18:20:22,833 INFO L175 Difference]: Start difference. First operand has 221 places, 521 transitions, 8223 flow. Second operand 10 states and 215 transitions. [2024-06-21 18:20:22,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 571 transitions, 9904 flow [2024-06-21 18:20:23,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 571 transitions, 9625 flow, removed 81 selfloop flow, removed 4 redundant places. [2024-06-21 18:20:23,619 INFO L231 Difference]: Finished difference. Result has 227 places, 521 transitions, 8635 flow [2024-06-21 18:20:23,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=7956, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=333, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8635, PETRI_PLACES=227, PETRI_TRANSITIONS=521} [2024-06-21 18:20:23,620 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 183 predicate places. [2024-06-21 18:20:23,620 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 521 transitions, 8635 flow [2024-06-21 18:20:23,620 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) [2024-06-21 18:20:23,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:23,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:23,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-06-21 18:20:23,620 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)] === [2024-06-21 18:20:23,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash 694424833, now seen corresponding path program 6 times [2024-06-21 18:20:23,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:23,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631157771] [2024-06-21 18:20:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:23,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:25,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:25,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631157771] [2024-06-21 18:20:25,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631157771] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:25,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:25,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:20:25,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621944878] [2024-06-21 18:20:25,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:25,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:20:25,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:20:25,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:20:25,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:25,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 521 transitions, 8635 flow. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:25,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:25,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:25,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:27,325 INFO L124 PetriNetUnfolderBase]: 4697/7211 cut-off events. [2024-06-21 18:20:27,325 INFO L125 PetriNetUnfolderBase]: For 518620/518664 co-relation queries the response was YES. [2024-06-21 18:20:27,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61165 conditions, 7211 events. 4697/7211 cut-off events. For 518620/518664 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 41929 event pairs, 1469 based on Foata normal form. 17/7187 useless extension candidates. Maximal degree in co-relation 61059. Up to 6479 conditions per place. [2024-06-21 18:20:27,406 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 478 selfloop transitions, 74 changer transitions 0/559 dead transitions. [2024-06-21 18:20:27,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 559 transitions, 9947 flow [2024-06-21 18:20:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 192 transitions. [2024-06-21 18:20:27,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44651162790697674 [2024-06-21 18:20:27,408 INFO L175 Difference]: Start difference. First operand has 227 places, 521 transitions, 8635 flow. Second operand 10 states and 192 transitions. [2024-06-21 18:20:27,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 559 transitions, 9947 flow [2024-06-21 18:20:28,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 559 transitions, 9347 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-06-21 18:20:28,256 INFO L231 Difference]: Finished difference. Result has 229 places, 521 transitions, 8208 flow [2024-06-21 18:20:28,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8039, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8208, PETRI_PLACES=229, PETRI_TRANSITIONS=521} [2024-06-21 18:20:28,256 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 185 predicate places. [2024-06-21 18:20:28,256 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 521 transitions, 8208 flow [2024-06-21 18:20:28,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:28,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:28,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:28,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-06-21 18:20:28,257 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)] === [2024-06-21 18:20:28,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1694357291, now seen corresponding path program 7 times [2024-06-21 18:20:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:28,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681919033] [2024-06-21 18:20:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:28,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681919033] [2024-06-21 18:20:30,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681919033] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:30,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:30,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:30,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582055973] [2024-06-21 18:20:30,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:30,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:30,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:30,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:30,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:30,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:30,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 521 transitions, 8208 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) [2024-06-21 18:20:30,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:30,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:30,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:32,753 INFO L124 PetriNetUnfolderBase]: 4664/7168 cut-off events. [2024-06-21 18:20:32,753 INFO L125 PetriNetUnfolderBase]: For 524435/524475 co-relation queries the response was YES. [2024-06-21 18:20:32,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59427 conditions, 7168 events. 4664/7168 cut-off events. For 524435/524475 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 41713 event pairs, 1376 based on Foata normal form. 16/7139 useless extension candidates. Maximal degree in co-relation 59320. Up to 5582 conditions per place. [2024-06-21 18:20:32,842 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 364 selfloop transitions, 203 changer transitions 0/574 dead transitions. [2024-06-21 18:20:32,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 574 transitions, 9910 flow [2024-06-21 18:20:32,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:20:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:20:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 199 transitions. [2024-06-21 18:20:32,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142118863049095 [2024-06-21 18:20:32,844 INFO L175 Difference]: Start difference. First operand has 229 places, 521 transitions, 8208 flow. Second operand 9 states and 199 transitions. [2024-06-21 18:20:32,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 574 transitions, 9910 flow [2024-06-21 18:20:33,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 574 transitions, 9683 flow, removed 52 selfloop flow, removed 7 redundant places. [2024-06-21 18:20:33,592 INFO L231 Difference]: Finished difference. Result has 231 places, 521 transitions, 8404 flow [2024-06-21 18:20:33,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=7981, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8404, PETRI_PLACES=231, PETRI_TRANSITIONS=521} [2024-06-21 18:20:33,592 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 187 predicate places. [2024-06-21 18:20:33,593 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 521 transitions, 8404 flow [2024-06-21 18:20:33,593 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) [2024-06-21 18:20:33,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:33,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:33,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-06-21 18:20:33,593 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)] === [2024-06-21 18:20:33,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2032192811, now seen corresponding path program 8 times [2024-06-21 18:20:33,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:33,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108884977] [2024-06-21 18:20:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:33,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:35,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:35,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108884977] [2024-06-21 18:20:35,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108884977] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:35,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:35,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455538541] [2024-06-21 18:20:35,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:35,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:35,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:35,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:35,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:35,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:35,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 521 transitions, 8404 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) [2024-06-21 18:20:35,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:35,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:35,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:37,258 INFO L124 PetriNetUnfolderBase]: 4915/7548 cut-off events. [2024-06-21 18:20:37,258 INFO L125 PetriNetUnfolderBase]: For 573287/573327 co-relation queries the response was YES. [2024-06-21 18:20:37,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63837 conditions, 7548 events. 4915/7548 cut-off events. For 573287/573327 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 44420 event pairs, 1503 based on Foata normal form. 14/7514 useless extension candidates. Maximal degree in co-relation 63730. Up to 6515 conditions per place. [2024-06-21 18:20:37,337 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 460 selfloop transitions, 118 changer transitions 0/585 dead transitions. [2024-06-21 18:20:37,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 585 transitions, 10635 flow [2024-06-21 18:20:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 206 transitions. [2024-06-21 18:20:37,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4790697674418605 [2024-06-21 18:20:37,341 INFO L175 Difference]: Start difference. First operand has 231 places, 521 transitions, 8404 flow. Second operand 10 states and 206 transitions. [2024-06-21 18:20:37,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 585 transitions, 10635 flow [2024-06-21 18:20:38,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 585 transitions, 10142 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-06-21 18:20:38,122 INFO L231 Difference]: Finished difference. Result has 234 places, 539 transitions, 8605 flow [2024-06-21 18:20:38,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=7945, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8605, PETRI_PLACES=234, PETRI_TRANSITIONS=539} [2024-06-21 18:20:38,123 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 190 predicate places. [2024-06-21 18:20:38,123 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 539 transitions, 8605 flow [2024-06-21 18:20:38,123 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) [2024-06-21 18:20:38,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:38,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:38,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-06-21 18:20:38,124 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)] === [2024-06-21 18:20:38,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:38,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1699934997, now seen corresponding path program 1 times [2024-06-21 18:20:38,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:38,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949157661] [2024-06-21 18:20:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:38,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:39,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:39,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949157661] [2024-06-21 18:20:39,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949157661] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:39,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:39,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:39,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164533524] [2024-06-21 18:20:39,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:39,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:39,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:39,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:20:39,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 539 transitions, 8605 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:39,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:39,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:20:39,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:41,524 INFO L124 PetriNetUnfolderBase]: 5745/8566 cut-off events. [2024-06-21 18:20:41,524 INFO L125 PetriNetUnfolderBase]: For 617658/617674 co-relation queries the response was YES. [2024-06-21 18:20:41,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71332 conditions, 8566 events. 5745/8566 cut-off events. For 617658/617674 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 47829 event pairs, 1764 based on Foata normal form. 4/8543 useless extension candidates. Maximal degree in co-relation 71222. Up to 8031 conditions per place. [2024-06-21 18:20:41,630 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 502 selfloop transitions, 84 changer transitions 0/591 dead transitions. [2024-06-21 18:20:41,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 591 transitions, 10201 flow [2024-06-21 18:20:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:20:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:20:41,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-06-21 18:20:41,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2024-06-21 18:20:41,632 INFO L175 Difference]: Start difference. First operand has 234 places, 539 transitions, 8605 flow. Second operand 8 states and 164 transitions. [2024-06-21 18:20:41,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 591 transitions, 10201 flow [2024-06-21 18:20:42,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 591 transitions, 10004 flow, removed 60 selfloop flow, removed 5 redundant places. [2024-06-21 18:20:42,596 INFO L231 Difference]: Finished difference. Result has 239 places, 560 transitions, 8888 flow [2024-06-21 18:20:42,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8412, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8888, PETRI_PLACES=239, PETRI_TRANSITIONS=560} [2024-06-21 18:20:42,597 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 195 predicate places. [2024-06-21 18:20:42,597 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 560 transitions, 8888 flow [2024-06-21 18:20:42,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:42,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:42,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:42,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-06-21 18:20:42,597 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)] === [2024-06-21 18:20:42,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:42,597 INFO L85 PathProgramCache]: Analyzing trace with hash 244905165, now seen corresponding path program 9 times [2024-06-21 18:20:42,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:42,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233299079] [2024-06-21 18:20:42,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:42,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:44,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233299079] [2024-06-21 18:20:44,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233299079] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:44,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993102545] [2024-06-21 18:20:44,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:44,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:44,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:44,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:44,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:44,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 560 transitions, 8888 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) [2024-06-21 18:20:44,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:44,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:44,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:46,536 INFO L124 PetriNetUnfolderBase]: 4991/7668 cut-off events. [2024-06-21 18:20:46,536 INFO L125 PetriNetUnfolderBase]: For 599858/599896 co-relation queries the response was YES. [2024-06-21 18:20:46,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65131 conditions, 7668 events. 4991/7668 cut-off events. For 599858/599896 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 45199 event pairs, 1486 based on Foata normal form. 32/7652 useless extension candidates. Maximal degree in co-relation 65018. Up to 6908 conditions per place. [2024-06-21 18:20:46,631 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 499 selfloop transitions, 87 changer transitions 0/594 dead transitions. [2024-06-21 18:20:46,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 594 transitions, 10263 flow [2024-06-21 18:20:46,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:20:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:20:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2024-06-21 18:20:46,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4780361757105943 [2024-06-21 18:20:46,632 INFO L175 Difference]: Start difference. First operand has 239 places, 560 transitions, 8888 flow. Second operand 9 states and 185 transitions. [2024-06-21 18:20:46,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 594 transitions, 10263 flow [2024-06-21 18:20:47,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 594 transitions, 10079 flow, removed 48 selfloop flow, removed 3 redundant places. [2024-06-21 18:20:47,703 INFO L231 Difference]: Finished difference. Result has 245 places, 560 transitions, 8902 flow [2024-06-21 18:20:47,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8712, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8902, PETRI_PLACES=245, PETRI_TRANSITIONS=560} [2024-06-21 18:20:47,704 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 201 predicate places. [2024-06-21 18:20:47,704 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 560 transitions, 8902 flow [2024-06-21 18:20:47,704 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) [2024-06-21 18:20:47,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:47,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-06-21 18:20:47,705 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)] === [2024-06-21 18:20:47,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash 842034433, now seen corresponding path program 10 times [2024-06-21 18:20:47,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:47,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033216272] [2024-06-21 18:20:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:47,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033216272] [2024-06-21 18:20:49,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033216272] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:49,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:49,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:20:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623717996] [2024-06-21 18:20:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:49,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:20:49,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:49,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:20:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:20:49,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:49,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 560 transitions, 8902 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) [2024-06-21 18:20:49,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:49,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:49,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:51,464 INFO L124 PetriNetUnfolderBase]: 4906/7545 cut-off events. [2024-06-21 18:20:51,464 INFO L125 PetriNetUnfolderBase]: For 597299/597321 co-relation queries the response was YES. [2024-06-21 18:20:51,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63552 conditions, 7545 events. 4906/7545 cut-off events. For 597299/597321 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 44444 event pairs, 1453 based on Foata normal form. 16/7515 useless extension candidates. Maximal degree in co-relation 63438. Up to 6525 conditions per place. [2024-06-21 18:20:51,550 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 464 selfloop transitions, 128 changer transitions 0/600 dead transitions. [2024-06-21 18:20:51,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 600 transitions, 10531 flow [2024-06-21 18:20:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:20:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:20:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 202 transitions. [2024-06-21 18:20:51,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4697674418604651 [2024-06-21 18:20:51,552 INFO L175 Difference]: Start difference. First operand has 245 places, 560 transitions, 8902 flow. Second operand 10 states and 202 transitions. [2024-06-21 18:20:51,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 600 transitions, 10531 flow [2024-06-21 18:20:52,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 600 transitions, 10297 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-06-21 18:20:52,545 INFO L231 Difference]: Finished difference. Result has 247 places, 560 transitions, 8937 flow [2024-06-21 18:20:52,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8668, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8937, PETRI_PLACES=247, PETRI_TRANSITIONS=560} [2024-06-21 18:20:52,546 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 203 predicate places. [2024-06-21 18:20:52,546 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 560 transitions, 8937 flow [2024-06-21 18:20:52,546 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) [2024-06-21 18:20:52,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:52,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:52,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-06-21 18:20:52,546 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:20:52,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:52,546 INFO L85 PathProgramCache]: Analyzing trace with hash 311795171, now seen corresponding path program 1 times [2024-06-21 18:20:52,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:52,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341272965] [2024-06-21 18:20:52,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:52,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:53,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:53,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341272965] [2024-06-21 18:20:53,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341272965] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:53,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:53,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:20:53,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59707874] [2024-06-21 18:20:53,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:20:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:53,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:20:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:20:53,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:53,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 560 transitions, 8937 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:53,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:53,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:53,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:20:54,953 INFO L124 PetriNetUnfolderBase]: 5164/7867 cut-off events. [2024-06-21 18:20:54,953 INFO L125 PetriNetUnfolderBase]: For 617836/618101 co-relation queries the response was YES. [2024-06-21 18:20:55,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65844 conditions, 7867 events. 5164/7867 cut-off events. For 617836/618101 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 45409 event pairs, 1755 based on Foata normal form. 58/7815 useless extension candidates. Maximal degree in co-relation 65728. Up to 7166 conditions per place. [2024-06-21 18:20:55,057 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 439 selfloop transitions, 25 changer transitions 0/584 dead transitions. [2024-06-21 18:20:55,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 584 transitions, 10115 flow [2024-06-21 18:20:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:20:55,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:20:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 134 transitions. [2024-06-21 18:20:55,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44518272425249167 [2024-06-21 18:20:55,058 INFO L175 Difference]: Start difference. First operand has 247 places, 560 transitions, 8937 flow. Second operand 7 states and 134 transitions. [2024-06-21 18:20:55,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 584 transitions, 10115 flow [2024-06-21 18:20:56,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 584 transitions, 9844 flow, removed 33 selfloop flow, removed 7 redundant places. [2024-06-21 18:20:56,277 INFO L231 Difference]: Finished difference. Result has 247 places, 566 transitions, 8789 flow [2024-06-21 18:20:56,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8666, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8789, PETRI_PLACES=247, PETRI_TRANSITIONS=566} [2024-06-21 18:20:56,278 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 203 predicate places. [2024-06-21 18:20:56,278 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 566 transitions, 8789 flow [2024-06-21 18:20:56,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:56,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:20:56,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:20:56,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-06-21 18:20:56,279 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)] === [2024-06-21 18:20:56,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:20:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2140049021, now seen corresponding path program 11 times [2024-06-21 18:20:56,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:20:56,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660452453] [2024-06-21 18:20:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:20:56,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:20:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:20:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:20:58,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:20:58,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660452453] [2024-06-21 18:20:58,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660452453] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:20:58,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:20:58,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:20:58,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947732535] [2024-06-21 18:20:58,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:20:58,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:20:58,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:20:58,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:20:58,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:20:58,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:20:58,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 566 transitions, 8789 flow. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:20:58,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:20:58,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:20:58,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:00,154 INFO L124 PetriNetUnfolderBase]: 5008/7706 cut-off events. [2024-06-21 18:21:00,155 INFO L125 PetriNetUnfolderBase]: For 633104/633159 co-relation queries the response was YES. [2024-06-21 18:21:00,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64390 conditions, 7706 events. 5008/7706 cut-off events. For 633104/633159 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 45685 event pairs, 1714 based on Foata normal form. 17/7661 useless extension candidates. Maximal degree in co-relation 64273. Up to 6906 conditions per place. [2024-06-21 18:21:00,250 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 525 selfloop transitions, 72 changer transitions 0/607 dead transitions. [2024-06-21 18:21:00,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 607 transitions, 10261 flow [2024-06-21 18:21:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:21:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:21:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 183 transitions. [2024-06-21 18:21:00,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4255813953488372 [2024-06-21 18:21:00,251 INFO L175 Difference]: Start difference. First operand has 247 places, 566 transitions, 8789 flow. Second operand 10 states and 183 transitions. [2024-06-21 18:21:00,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 607 transitions, 10261 flow [2024-06-21 18:21:01,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 607 transitions, 10168 flow, removed 38 selfloop flow, removed 3 redundant places. [2024-06-21 18:21:01,496 INFO L231 Difference]: Finished difference. Result has 254 places, 575 transitions, 8990 flow [2024-06-21 18:21:01,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8696, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8990, PETRI_PLACES=254, PETRI_TRANSITIONS=575} [2024-06-21 18:21:01,497 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 210 predicate places. [2024-06-21 18:21:01,497 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 575 transitions, 8990 flow [2024-06-21 18:21:01,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:21:01,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:01,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:01,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-06-21 18:21:01,497 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)] === [2024-06-21 18:21:01,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:01,497 INFO L85 PathProgramCache]: Analyzing trace with hash -128653393, now seen corresponding path program 12 times [2024-06-21 18:21:01,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:01,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83614104] [2024-06-21 18:21:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:03,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:03,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83614104] [2024-06-21 18:21:03,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83614104] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:03,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:03,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:03,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299508071] [2024-06-21 18:21:03,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:03,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:03,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:03,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:03,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:03,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:03,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 575 transitions, 8990 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) [2024-06-21 18:21:03,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:03,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:03,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:05,848 INFO L124 PetriNetUnfolderBase]: 5375/8261 cut-off events. [2024-06-21 18:21:05,848 INFO L125 PetriNetUnfolderBase]: For 675977/676035 co-relation queries the response was YES. [2024-06-21 18:21:05,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68929 conditions, 8261 events. 5375/8261 cut-off events. For 675977/676035 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 49710 event pairs, 1676 based on Foata normal form. 30/8218 useless extension candidates. Maximal degree in co-relation 68810. Up to 6250 conditions per place. [2024-06-21 18:21:05,979 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 417 selfloop transitions, 232 changer transitions 0/659 dead transitions. [2024-06-21 18:21:05,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 659 transitions, 11567 flow [2024-06-21 18:21:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:05,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2024-06-21 18:21:05,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909560723514212 [2024-06-21 18:21:05,983 INFO L175 Difference]: Start difference. First operand has 254 places, 575 transitions, 8990 flow. Second operand 9 states and 190 transitions. [2024-06-21 18:21:05,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 659 transitions, 11567 flow [2024-06-21 18:21:07,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 659 transitions, 11442 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-06-21 18:21:07,398 INFO L231 Difference]: Finished difference. Result has 258 places, 608 transitions, 10030 flow [2024-06-21 18:21:07,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=8865, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10030, PETRI_PLACES=258, PETRI_TRANSITIONS=608} [2024-06-21 18:21:07,399 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 214 predicate places. [2024-06-21 18:21:07,399 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 608 transitions, 10030 flow [2024-06-21 18:21:07,399 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) [2024-06-21 18:21:07,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:07,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:07,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-06-21 18:21:07,399 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)] === [2024-06-21 18:21:07,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -128647813, now seen corresponding path program 13 times [2024-06-21 18:21:07,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:07,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917693467] [2024-06-21 18:21:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:07,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:09,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:09,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917693467] [2024-06-21 18:21:09,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917693467] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:09,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:09,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107883228] [2024-06-21 18:21:09,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:09,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:09,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:09,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 608 transitions, 10030 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) [2024-06-21 18:21:09,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:09,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:09,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:11,544 INFO L124 PetriNetUnfolderBase]: 5343/8217 cut-off events. [2024-06-21 18:21:11,544 INFO L125 PetriNetUnfolderBase]: For 683303/683345 co-relation queries the response was YES. [2024-06-21 18:21:11,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69974 conditions, 8217 events. 5343/8217 cut-off events. For 683303/683345 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 49400 event pairs, 1670 based on Foata normal form. 12/8156 useless extension candidates. Maximal degree in co-relation 69852. Up to 6230 conditions per place. [2024-06-21 18:21:11,695 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 409 selfloop transitions, 237 changer transitions 0/656 dead transitions. [2024-06-21 18:21:11,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 656 transitions, 11890 flow [2024-06-21 18:21:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2024-06-21 18:21:11,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806201550387597 [2024-06-21 18:21:11,697 INFO L175 Difference]: Start difference. First operand has 258 places, 608 transitions, 10030 flow. Second operand 9 states and 186 transitions. [2024-06-21 18:21:11,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 656 transitions, 11890 flow [2024-06-21 18:21:13,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 656 transitions, 11414 flow, removed 88 selfloop flow, removed 5 redundant places. [2024-06-21 18:21:13,339 INFO L231 Difference]: Finished difference. Result has 262 places, 608 transitions, 10048 flow [2024-06-21 18:21:13,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=9554, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10048, PETRI_PLACES=262, PETRI_TRANSITIONS=608} [2024-06-21 18:21:13,340 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 218 predicate places. [2024-06-21 18:21:13,340 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 608 transitions, 10048 flow [2024-06-21 18:21:13,340 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) [2024-06-21 18:21:13,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:13,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:13,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-06-21 18:21:13,341 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)] === [2024-06-21 18:21:13,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash 15444527, now seen corresponding path program 14 times [2024-06-21 18:21:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096825401] [2024-06-21 18:21:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:14,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:14,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096825401] [2024-06-21 18:21:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096825401] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:14,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:14,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585489417] [2024-06-21 18:21:14,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:14,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:14,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:14,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:15,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:15,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 608 transitions, 10048 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) [2024-06-21 18:21:15,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:15,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:16,971 INFO L124 PetriNetUnfolderBase]: 5462/8412 cut-off events. [2024-06-21 18:21:16,972 INFO L125 PetriNetUnfolderBase]: For 721987/722029 co-relation queries the response was YES. [2024-06-21 18:21:17,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71545 conditions, 8412 events. 5462/8412 cut-off events. For 721987/722029 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 51030 event pairs, 1881 based on Foata normal form. 16/8355 useless extension candidates. Maximal degree in co-relation 71422. Up to 7567 conditions per place. [2024-06-21 18:21:17,081 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 556 selfloop transitions, 81 changer transitions 0/647 dead transitions. [2024-06-21 18:21:17,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 647 transitions, 11723 flow [2024-06-21 18:21:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:17,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-06-21 18:21:17,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2024-06-21 18:21:17,083 INFO L175 Difference]: Start difference. First operand has 262 places, 608 transitions, 10048 flow. Second operand 9 states and 174 transitions. [2024-06-21 18:21:17,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 647 transitions, 11723 flow [2024-06-21 18:21:18,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 647 transitions, 11207 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-06-21 18:21:18,123 INFO L231 Difference]: Finished difference. Result has 263 places, 617 transitions, 9979 flow [2024-06-21 18:21:18,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=9550, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9979, PETRI_PLACES=263, PETRI_TRANSITIONS=617} [2024-06-21 18:21:18,123 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 219 predicate places. [2024-06-21 18:21:18,123 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 617 transitions, 9979 flow [2024-06-21 18:21:18,124 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) [2024-06-21 18:21:18,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:18,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:18,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-06-21 18:21:18,124 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)] === [2024-06-21 18:21:18,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash 15237137, now seen corresponding path program 15 times [2024-06-21 18:21:18,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:18,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128114716] [2024-06-21 18:21:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:19,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:19,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128114716] [2024-06-21 18:21:19,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128114716] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:19,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:19,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:19,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85353909] [2024-06-21 18:21:19,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:19,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:19,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:19,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:19,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:20,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:20,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 617 transitions, 9979 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) [2024-06-21 18:21:20,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:20,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:20,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:22,313 INFO L124 PetriNetUnfolderBase]: 5585/8596 cut-off events. [2024-06-21 18:21:22,313 INFO L125 PetriNetUnfolderBase]: For 745723/745781 co-relation queries the response was YES. [2024-06-21 18:21:22,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73017 conditions, 8596 events. 5585/8596 cut-off events. For 745723/745781 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 52333 event pairs, 1810 based on Foata normal form. 25/8542 useless extension candidates. Maximal degree in co-relation 72893. Up to 7590 conditions per place. [2024-06-21 18:21:22,431 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 555 selfloop transitions, 122 changer transitions 0/687 dead transitions. [2024-06-21 18:21:22,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 687 transitions, 12584 flow [2024-06-21 18:21:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:22,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 179 transitions. [2024-06-21 18:21:22,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625322997416021 [2024-06-21 18:21:22,432 INFO L175 Difference]: Start difference. First operand has 263 places, 617 transitions, 9979 flow. Second operand 9 states and 179 transitions. [2024-06-21 18:21:22,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 687 transitions, 12584 flow [2024-06-21 18:21:23,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 687 transitions, 12057 flow, removed 128 selfloop flow, removed 9 redundant places. [2024-06-21 18:21:23,860 INFO L231 Difference]: Finished difference. Result has 264 places, 651 transitions, 10613 flow [2024-06-21 18:21:23,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=9576, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10613, PETRI_PLACES=264, PETRI_TRANSITIONS=651} [2024-06-21 18:21:23,860 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 220 predicate places. [2024-06-21 18:21:23,860 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 651 transitions, 10613 flow [2024-06-21 18:21:23,861 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) [2024-06-21 18:21:23,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:23,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:23,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-06-21 18:21:23,861 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:23,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 15242717, now seen corresponding path program 16 times [2024-06-21 18:21:23,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:23,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480683776] [2024-06-21 18:21:23,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:23,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:25,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480683776] [2024-06-21 18:21:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480683776] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:25,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:25,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427827007] [2024-06-21 18:21:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:25,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:25,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:25,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:25,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:25,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 651 transitions, 10613 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) [2024-06-21 18:21:25,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:25,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:25,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:27,866 INFO L124 PetriNetUnfolderBase]: 5552/8557 cut-off events. [2024-06-21 18:21:27,866 INFO L125 PetriNetUnfolderBase]: For 746878/746920 co-relation queries the response was YES. [2024-06-21 18:21:27,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73007 conditions, 8557 events. 5552/8557 cut-off events. For 746878/746920 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 52157 event pairs, 1824 based on Foata normal form. 8/8488 useless extension candidates. Maximal degree in co-relation 72883. Up to 7556 conditions per place. [2024-06-21 18:21:27,977 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 560 selfloop transitions, 118 changer transitions 0/688 dead transitions. [2024-06-21 18:21:27,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 688 transitions, 12223 flow [2024-06-21 18:21:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 178 transitions. [2024-06-21 18:21:27,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4599483204134367 [2024-06-21 18:21:27,978 INFO L175 Difference]: Start difference. First operand has 264 places, 651 transitions, 10613 flow. Second operand 9 states and 178 transitions. [2024-06-21 18:21:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 688 transitions, 12223 flow [2024-06-21 18:21:29,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 688 transitions, 11876 flow, removed 122 selfloop flow, removed 5 redundant places. [2024-06-21 18:21:29,619 INFO L231 Difference]: Finished difference. Result has 268 places, 652 transitions, 10527 flow [2024-06-21 18:21:29,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=10268, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10527, PETRI_PLACES=268, PETRI_TRANSITIONS=652} [2024-06-21 18:21:29,619 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 224 predicate places. [2024-06-21 18:21:29,620 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 652 transitions, 10527 flow [2024-06-21 18:21:29,620 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) [2024-06-21 18:21:29,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:29,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:29,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-06-21 18:21:29,620 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:29,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:29,621 INFO L85 PathProgramCache]: Analyzing trace with hash -140634161, now seen corresponding path program 1 times [2024-06-21 18:21:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859698183] [2024-06-21 18:21:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:30,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:30,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859698183] [2024-06-21 18:21:30,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859698183] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:30,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:30,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:21:30,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469127891] [2024-06-21 18:21:30,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:30,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:21:30,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:30,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:21:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:21:30,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:30,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 652 transitions, 10527 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:21:30,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:30,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:30,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:32,823 INFO L124 PetriNetUnfolderBase]: 5956/8985 cut-off events. [2024-06-21 18:21:32,823 INFO L125 PetriNetUnfolderBase]: For 786437/786941 co-relation queries the response was YES. [2024-06-21 18:21:32,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76064 conditions, 8985 events. 5956/8985 cut-off events. For 786437/786941 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 52728 event pairs, 2173 based on Foata normal form. 172/8978 useless extension candidates. Maximal degree in co-relation 75938. Up to 8265 conditions per place. [2024-06-21 18:21:32,931 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 526 selfloop transitions, 31 changer transitions 0/681 dead transitions. [2024-06-21 18:21:32,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 681 transitions, 12072 flow [2024-06-21 18:21:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:21:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:21:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-06-21 18:21:32,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43853820598006643 [2024-06-21 18:21:32,932 INFO L175 Difference]: Start difference. First operand has 268 places, 652 transitions, 10527 flow. Second operand 7 states and 132 transitions. [2024-06-21 18:21:32,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 681 transitions, 12072 flow [2024-06-21 18:21:34,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 681 transitions, 11873 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-06-21 18:21:34,201 INFO L231 Difference]: Finished difference. Result has 271 places, 667 transitions, 10570 flow [2024-06-21 18:21:34,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=10328, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10570, PETRI_PLACES=271, PETRI_TRANSITIONS=667} [2024-06-21 18:21:34,201 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 227 predicate places. [2024-06-21 18:21:34,201 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 667 transitions, 10570 flow [2024-06-21 18:21:34,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:21:34,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:34,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-06-21 18:21:34,202 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:34,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1667104623, now seen corresponding path program 2 times [2024-06-21 18:21:34,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:34,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145843685] [2024-06-21 18:21:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:34,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:35,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:35,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145843685] [2024-06-21 18:21:35,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145843685] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:35,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:21:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903228444] [2024-06-21 18:21:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:35,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:21:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:35,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:21:35,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:21:35,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:35,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 667 transitions, 10570 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:21:35,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:35,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:35,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:36,884 INFO L124 PetriNetUnfolderBase]: 5951/8984 cut-off events. [2024-06-21 18:21:36,884 INFO L125 PetriNetUnfolderBase]: For 804790/805292 co-relation queries the response was YES. [2024-06-21 18:21:36,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76298 conditions, 8984 events. 5951/8984 cut-off events. For 804790/805292 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 52761 event pairs, 2157 based on Foata normal form. 172/8985 useless extension candidates. Maximal degree in co-relation 76168. Up to 8275 conditions per place. [2024-06-21 18:21:37,004 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 531 selfloop transitions, 24 changer transitions 0/679 dead transitions. [2024-06-21 18:21:37,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 679 transitions, 11852 flow [2024-06-21 18:21:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:21:37,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:21:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-06-21 18:21:37,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573643410852715 [2024-06-21 18:21:37,005 INFO L175 Difference]: Start difference. First operand has 271 places, 667 transitions, 10570 flow. Second operand 6 states and 115 transitions. [2024-06-21 18:21:37,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 679 transitions, 11852 flow [2024-06-21 18:21:38,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 679 transitions, 11799 flow, removed 25 selfloop flow, removed 1 redundant places. [2024-06-21 18:21:38,548 INFO L231 Difference]: Finished difference. Result has 276 places, 667 transitions, 10575 flow [2024-06-21 18:21:38,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=10517, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10575, PETRI_PLACES=276, PETRI_TRANSITIONS=667} [2024-06-21 18:21:38,549 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 232 predicate places. [2024-06-21 18:21:38,549 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 667 transitions, 10575 flow [2024-06-21 18:21:38,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:21:38,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:38,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:38,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-06-21 18:21:38,549 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:38,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:38,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1040702941, now seen corresponding path program 17 times [2024-06-21 18:21:38,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:38,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054290460] [2024-06-21 18:21:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:38,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:40,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:40,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054290460] [2024-06-21 18:21:40,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054290460] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:40,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:40,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:40,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38745467] [2024-06-21 18:21:40,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:40,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:40,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:40,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:40,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:40,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 667 transitions, 10575 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) [2024-06-21 18:21:40,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:40,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:40,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:42,844 INFO L124 PetriNetUnfolderBase]: 6013/9231 cut-off events. [2024-06-21 18:21:42,844 INFO L125 PetriNetUnfolderBase]: For 912792/912831 co-relation queries the response was YES. [2024-06-21 18:21:42,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82334 conditions, 9231 events. 6013/9231 cut-off events. For 912792/912831 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 56581 event pairs, 1990 based on Foata normal form. 16/9170 useless extension candidates. Maximal degree in co-relation 82201. Up to 7929 conditions per place. [2024-06-21 18:21:42,965 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 630 selfloop transitions, 93 changer transitions 0/735 dead transitions. [2024-06-21 18:21:42,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 735 transitions, 13550 flow [2024-06-21 18:21:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 181 transitions. [2024-06-21 18:21:42,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46770025839793283 [2024-06-21 18:21:42,967 INFO L175 Difference]: Start difference. First operand has 276 places, 667 transitions, 10575 flow. Second operand 9 states and 181 transitions. [2024-06-21 18:21:42,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 735 transitions, 13550 flow [2024-06-21 18:21:44,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 735 transitions, 13511 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-06-21 18:21:44,625 INFO L231 Difference]: Finished difference. Result has 281 places, 694 transitions, 11530 flow [2024-06-21 18:21:44,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=10536, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11530, PETRI_PLACES=281, PETRI_TRANSITIONS=694} [2024-06-21 18:21:44,625 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 237 predicate places. [2024-06-21 18:21:44,625 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 694 transitions, 11530 flow [2024-06-21 18:21:44,626 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) [2024-06-21 18:21:44,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:44,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:44,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-06-21 18:21:44,626 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:44,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1040697361, now seen corresponding path program 18 times [2024-06-21 18:21:44,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:44,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336324609] [2024-06-21 18:21:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:44,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:46,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336324609] [2024-06-21 18:21:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336324609] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:46,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:46,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:46,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230370416] [2024-06-21 18:21:46,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:46,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:46,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:46,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:46,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 694 transitions, 11530 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) [2024-06-21 18:21:46,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:46,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:46,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:49,717 INFO L124 PetriNetUnfolderBase]: 5964/9164 cut-off events. [2024-06-21 18:21:49,717 INFO L125 PetriNetUnfolderBase]: For 912562/912601 co-relation queries the response was YES. [2024-06-21 18:21:49,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81633 conditions, 9164 events. 5964/9164 cut-off events. For 912562/912601 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 56226 event pairs, 1951 based on Foata normal form. 18/9105 useless extension candidates. Maximal degree in co-relation 81499. Up to 7897 conditions per place. [2024-06-21 18:21:49,861 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 619 selfloop transitions, 99 changer transitions 0/730 dead transitions. [2024-06-21 18:21:49,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 730 transitions, 13444 flow [2024-06-21 18:21:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-06-21 18:21:49,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2024-06-21 18:21:49,863 INFO L175 Difference]: Start difference. First operand has 281 places, 694 transitions, 11530 flow. Second operand 9 states and 177 transitions. [2024-06-21 18:21:49,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 730 transitions, 13444 flow [2024-06-21 18:21:51,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 730 transitions, 13090 flow, removed 159 selfloop flow, removed 4 redundant places. [2024-06-21 18:21:52,003 INFO L231 Difference]: Finished difference. Result has 286 places, 694 transitions, 11390 flow [2024-06-21 18:21:52,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11176, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11390, PETRI_PLACES=286, PETRI_TRANSITIONS=694} [2024-06-21 18:21:52,004 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 242 predicate places. [2024-06-21 18:21:52,004 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 694 transitions, 11390 flow [2024-06-21 18:21:52,004 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) [2024-06-21 18:21:52,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:52,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:52,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-06-21 18:21:52,005 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:52,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1040904751, now seen corresponding path program 19 times [2024-06-21 18:21:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513248257] [2024-06-21 18:21:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:52,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:53,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513248257] [2024-06-21 18:21:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513248257] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:53,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:53,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:53,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087820157] [2024-06-21 18:21:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:53,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:53,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:53,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:53,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:53,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 694 transitions, 11390 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) [2024-06-21 18:21:53,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:53,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:53,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:21:56,000 INFO L124 PetriNetUnfolderBase]: 5968/9174 cut-off events. [2024-06-21 18:21:56,000 INFO L125 PetriNetUnfolderBase]: For 910661/910700 co-relation queries the response was YES. [2024-06-21 18:21:56,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80998 conditions, 9174 events. 5968/9174 cut-off events. For 910661/910700 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 56503 event pairs, 2066 based on Foata normal form. 16/9107 useless extension candidates. Maximal degree in co-relation 80862. Up to 8386 conditions per place. [2024-06-21 18:21:56,106 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 671 selfloop transitions, 50 changer transitions 0/733 dead transitions. [2024-06-21 18:21:56,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 733 transitions, 13286 flow [2024-06-21 18:21:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:21:56,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:21:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 171 transitions. [2024-06-21 18:21:56,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-21 18:21:56,107 INFO L175 Difference]: Start difference. First operand has 286 places, 694 transitions, 11390 flow. Second operand 9 states and 171 transitions. [2024-06-21 18:21:56,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 733 transitions, 13286 flow [2024-06-21 18:21:57,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 733 transitions, 13034 flow, removed 36 selfloop flow, removed 7 redundant places. [2024-06-21 18:21:57,368 INFO L231 Difference]: Finished difference. Result has 288 places, 703 transitions, 11548 flow [2024-06-21 18:21:57,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11177, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11548, PETRI_PLACES=288, PETRI_TRANSITIONS=703} [2024-06-21 18:21:57,369 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 244 predicate places. [2024-06-21 18:21:57,369 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 703 transitions, 11548 flow [2024-06-21 18:21:57,369 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) [2024-06-21 18:21:57,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:21:57,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:21:57,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-06-21 18:21:57,370 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:21:57,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:21:57,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1297405261, now seen corresponding path program 20 times [2024-06-21 18:21:57,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:21:57,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355434548] [2024-06-21 18:21:57,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:21:57,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:21:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:21:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:21:58,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:21:58,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355434548] [2024-06-21 18:21:58,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355434548] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:21:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:21:58,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:21:58,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807668333] [2024-06-21 18:21:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:21:58,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:21:58,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:21:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:21:58,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:21:58,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:21:58,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 703 transitions, 11548 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) [2024-06-21 18:21:58,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:21:58,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:21:58,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:01,500 INFO L124 PetriNetUnfolderBase]: 5924/9111 cut-off events. [2024-06-21 18:22:01,501 INFO L125 PetriNetUnfolderBase]: For 899307/899346 co-relation queries the response was YES. [2024-06-21 18:22:01,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79339 conditions, 9111 events. 5924/9111 cut-off events. For 899307/899346 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 56094 event pairs, 2056 based on Foata normal form. 16/9044 useless extension candidates. Maximal degree in co-relation 79202. Up to 8351 conditions per place. [2024-06-21 18:22:01,638 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 681 selfloop transitions, 39 changer transitions 0/732 dead transitions. [2024-06-21 18:22:01,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 732 transitions, 13163 flow [2024-06-21 18:22:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:22:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:22:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2024-06-21 18:22:01,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43669250645994834 [2024-06-21 18:22:01,640 INFO L175 Difference]: Start difference. First operand has 288 places, 703 transitions, 11548 flow. Second operand 9 states and 169 transitions. [2024-06-21 18:22:01,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 732 transitions, 13163 flow [2024-06-21 18:22:03,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 732 transitions, 12871 flow, removed 102 selfloop flow, removed 7 redundant places. [2024-06-21 18:22:03,318 INFO L231 Difference]: Finished difference. Result has 290 places, 703 transitions, 11350 flow [2024-06-21 18:22:03,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11256, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11350, PETRI_PLACES=290, PETRI_TRANSITIONS=703} [2024-06-21 18:22:03,318 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 246 predicate places. [2024-06-21 18:22:03,318 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 703 transitions, 11350 flow [2024-06-21 18:22:03,318 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) [2024-06-21 18:22:03,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:03,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-06-21 18:22:03,319 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:03,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1306936397, now seen corresponding path program 2 times [2024-06-21 18:22:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200705918] [2024-06-21 18:22:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:04,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:04,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200705918] [2024-06-21 18:22:04,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200705918] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:04,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:04,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:22:04,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968885186] [2024-06-21 18:22:04,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:04,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:22:04,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:22:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:22:04,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:22:04,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 703 transitions, 11350 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:04,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:04,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:22:04,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:06,964 INFO L124 PetriNetUnfolderBase]: 7083/10547 cut-off events. [2024-06-21 18:22:06,964 INFO L125 PetriNetUnfolderBase]: For 887336/887347 co-relation queries the response was YES. [2024-06-21 18:22:07,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87909 conditions, 10547 events. 7083/10547 cut-off events. For 887336/887347 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 61214 event pairs, 2669 based on Foata normal form. 2/10523 useless extension candidates. Maximal degree in co-relation 87771. Up to 10154 conditions per place. [2024-06-21 18:22:07,119 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 701 selfloop transitions, 31 changer transitions 0/741 dead transitions. [2024-06-21 18:22:07,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 741 transitions, 13227 flow [2024-06-21 18:22:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:22:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:22:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 159 transitions. [2024-06-21 18:22:07,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4108527131782946 [2024-06-21 18:22:07,120 INFO L175 Difference]: Start difference. First operand has 290 places, 703 transitions, 11350 flow. Second operand 9 states and 159 transitions. [2024-06-21 18:22:07,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 741 transitions, 13227 flow [2024-06-21 18:22:09,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 741 transitions, 13014 flow, removed 15 selfloop flow, removed 9 redundant places. [2024-06-21 18:22:09,365 INFO L231 Difference]: Finished difference. Result has 291 places, 715 transitions, 11490 flow [2024-06-21 18:22:09,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11155, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11490, PETRI_PLACES=291, PETRI_TRANSITIONS=715} [2024-06-21 18:22:09,365 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 247 predicate places. [2024-06-21 18:22:09,365 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 715 transitions, 11490 flow [2024-06-21 18:22:09,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:09,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:09,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-06-21 18:22:09,366 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:09,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash -323901903, now seen corresponding path program 3 times [2024-06-21 18:22:09,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:09,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294815349] [2024-06-21 18:22:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:09,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:10,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294815349] [2024-06-21 18:22:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294815349] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:10,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:10,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:22:10,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882126876] [2024-06-21 18:22:10,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:10,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:22:10,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:10,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:22:10,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:22:10,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:22:10,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 715 transitions, 11490 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:10,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:10,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:22:10,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:12,692 INFO L124 PetriNetUnfolderBase]: 6376/9616 cut-off events. [2024-06-21 18:22:12,692 INFO L125 PetriNetUnfolderBase]: For 921636/922144 co-relation queries the response was YES. [2024-06-21 18:22:12,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82416 conditions, 9616 events. 6376/9616 cut-off events. For 921636/922144 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 57234 event pairs, 2323 based on Foata normal form. 148/9569 useless extension candidates. Maximal degree in co-relation 82276. Up to 8916 conditions per place. [2024-06-21 18:22:12,915 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 586 selfloop transitions, 13 changer transitions 0/723 dead transitions. [2024-06-21 18:22:12,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 723 transitions, 12726 flow [2024-06-21 18:22:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:22:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:22:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-06-21 18:22:12,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2024-06-21 18:22:12,916 INFO L175 Difference]: Start difference. First operand has 291 places, 715 transitions, 11490 flow. Second operand 6 states and 108 transitions. [2024-06-21 18:22:12,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 723 transitions, 12726 flow [2024-06-21 18:22:15,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 723 transitions, 12612 flow, removed 34 selfloop flow, removed 5 redundant places. [2024-06-21 18:22:15,339 INFO L231 Difference]: Finished difference. Result has 292 places, 715 transitions, 11408 flow [2024-06-21 18:22:15,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11376, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=702, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11408, PETRI_PLACES=292, PETRI_TRANSITIONS=715} [2024-06-21 18:22:15,340 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 248 predicate places. [2024-06-21 18:22:15,340 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 715 transitions, 11408 flow [2024-06-21 18:22:15,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:15,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:15,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:15,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-06-21 18:22:15,340 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:15,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash 727251693, now seen corresponding path program 1 times [2024-06-21 18:22:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789863108] [2024-06-21 18:22:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:15,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789863108] [2024-06-21 18:22:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789863108] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:16,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:16,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:22:16,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565919393] [2024-06-21 18:22:16,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:16,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:22:16,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:16,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:22:16,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:22:16,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-21 18:22:16,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 715 transitions, 11408 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:16,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:16,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-21 18:22:16,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:18,588 INFO L124 PetriNetUnfolderBase]: 7266/10740 cut-off events. [2024-06-21 18:22:18,588 INFO L125 PetriNetUnfolderBase]: For 893756/893756 co-relation queries the response was YES. [2024-06-21 18:22:18,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89301 conditions, 10740 events. 7266/10740 cut-off events. For 893756/893756 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 61401 event pairs, 2789 based on Foata normal form. 1/10739 useless extension candidates. Maximal degree in co-relation 89160. Up to 10521 conditions per place. [2024-06-21 18:22:18,743 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 712 selfloop transitions, 18 changer transitions 0/733 dead transitions. [2024-06-21 18:22:18,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 733 transitions, 13130 flow [2024-06-21 18:22:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:22:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:22:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2024-06-21 18:22:18,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40310077519379844 [2024-06-21 18:22:18,744 INFO L175 Difference]: Start difference. First operand has 292 places, 715 transitions, 11408 flow. Second operand 6 states and 104 transitions. [2024-06-21 18:22:18,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 733 transitions, 13130 flow [2024-06-21 18:22:20,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 733 transitions, 13087 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-06-21 18:22:20,764 INFO L231 Difference]: Finished difference. Result has 293 places, 721 transitions, 11475 flow [2024-06-21 18:22:20,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11365, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11475, PETRI_PLACES=293, PETRI_TRANSITIONS=721} [2024-06-21 18:22:20,765 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 249 predicate places. [2024-06-21 18:22:20,765 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 721 transitions, 11475 flow [2024-06-21 18:22:20,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:20,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:20,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:20,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-06-21 18:22:20,765 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:20,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash -278920159, now seen corresponding path program 2 times [2024-06-21 18:22:20,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:20,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079184518] [2024-06-21 18:22:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:20,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:21,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079184518] [2024-06-21 18:22:21,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079184518] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:21,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:21,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-21 18:22:21,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4998818] [2024-06-21 18:22:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:21,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-21 18:22:21,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:21,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-21 18:22:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-21 18:22:21,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 43 [2024-06-21 18:22:21,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 721 transitions, 11475 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:21,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:21,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 43 [2024-06-21 18:22:21,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:24,034 INFO L124 PetriNetUnfolderBase]: 7263/10737 cut-off events. [2024-06-21 18:22:24,034 INFO L125 PetriNetUnfolderBase]: For 915087/915090 co-relation queries the response was YES. [2024-06-21 18:22:24,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89932 conditions, 10737 events. 7263/10737 cut-off events. For 915087/915090 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 61441 event pairs, 2792 based on Foata normal form. 3/10737 useless extension candidates. Maximal degree in co-relation 89789. Up to 10518 conditions per place. [2024-06-21 18:22:24,201 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 708 selfloop transitions, 18 changer transitions 0/729 dead transitions. [2024-06-21 18:22:24,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 729 transitions, 12965 flow [2024-06-21 18:22:24,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-21 18:22:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-21 18:22:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2024-06-21 18:22:24,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3875968992248062 [2024-06-21 18:22:24,201 INFO L175 Difference]: Start difference. First operand has 293 places, 721 transitions, 11475 flow. Second operand 6 states and 100 transitions. [2024-06-21 18:22:24,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 729 transitions, 12965 flow [2024-06-21 18:22:26,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 729 transitions, 12940 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-06-21 18:22:26,153 INFO L231 Difference]: Finished difference. Result has 297 places, 721 transitions, 11494 flow [2024-06-21 18:22:26,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11450, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=703, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11494, PETRI_PLACES=297, PETRI_TRANSITIONS=721} [2024-06-21 18:22:26,154 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 253 predicate places. [2024-06-21 18:22:26,154 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 721 transitions, 11494 flow [2024-06-21 18:22:26,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:26,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:26,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:26,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-06-21 18:22:26,154 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:26,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1924486635, now seen corresponding path program 1 times [2024-06-21 18:22:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:26,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354074710] [2024-06-21 18:22:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:27,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:27,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354074710] [2024-06-21 18:22:27,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354074710] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:27,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:27,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:22:27,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447276325] [2024-06-21 18:22:27,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:27,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:22:27,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:27,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:22:27,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:22:27,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:22:27,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 721 transitions, 11494 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:27,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:27,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:22:27,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:29,729 INFO L124 PetriNetUnfolderBase]: 6099/9345 cut-off events. [2024-06-21 18:22:29,729 INFO L125 PetriNetUnfolderBase]: For 1008399/1008434 co-relation queries the response was YES. [2024-06-21 18:22:29,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83258 conditions, 9345 events. 6099/9345 cut-off events. For 1008399/1008434 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 57753 event pairs, 1642 based on Foata normal form. 8/9245 useless extension candidates. Maximal degree in co-relation 83111. Up to 8286 conditions per place. [2024-06-21 18:22:29,868 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 628 selfloop transitions, 135 changer transitions 0/778 dead transitions. [2024-06-21 18:22:29,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 778 transitions, 13665 flow [2024-06-21 18:22:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:22:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:22:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 224 transitions. [2024-06-21 18:22:29,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47357293868921774 [2024-06-21 18:22:29,870 INFO L175 Difference]: Start difference. First operand has 297 places, 721 transitions, 11494 flow. Second operand 11 states and 224 transitions. [2024-06-21 18:22:29,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 778 transitions, 13665 flow [2024-06-21 18:22:32,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 778 transitions, 13627 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-06-21 18:22:32,066 INFO L231 Difference]: Finished difference. Result has 306 places, 727 transitions, 11868 flow [2024-06-21 18:22:32,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11456, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11868, PETRI_PLACES=306, PETRI_TRANSITIONS=727} [2024-06-21 18:22:32,069 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 262 predicate places. [2024-06-21 18:22:32,069 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 727 transitions, 11868 flow [2024-06-21 18:22:32,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:32,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:32,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-06-21 18:22:32,069 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:32,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1032852997, now seen corresponding path program 2 times [2024-06-21 18:22:32,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:32,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670547269] [2024-06-21 18:22:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:32,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:33,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:33,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670547269] [2024-06-21 18:22:33,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670547269] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:33,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:33,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-21 18:22:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059693858] [2024-06-21 18:22:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:33,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-21 18:22:33,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:33,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-21 18:22:33,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-06-21 18:22:33,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:22:33,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 727 transitions, 11868 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:33,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:33,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:22:33,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:35,819 INFO L124 PetriNetUnfolderBase]: 6072/9322 cut-off events. [2024-06-21 18:22:35,819 INFO L125 PetriNetUnfolderBase]: For 1001067/1001092 co-relation queries the response was YES. [2024-06-21 18:22:35,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83372 conditions, 9322 events. 6072/9322 cut-off events. For 1001067/1001092 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 57592 event pairs, 1680 based on Foata normal form. 8/9241 useless extension candidates. Maximal degree in co-relation 83223. Up to 8317 conditions per place. [2024-06-21 18:22:35,983 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 629 selfloop transitions, 131 changer transitions 0/775 dead transitions. [2024-06-21 18:22:35,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 775 transitions, 13689 flow [2024-06-21 18:22:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:22:35,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:22:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 219 transitions. [2024-06-21 18:22:35,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4630021141649049 [2024-06-21 18:22:35,984 INFO L175 Difference]: Start difference. First operand has 306 places, 727 transitions, 11868 flow. Second operand 11 states and 219 transitions. [2024-06-21 18:22:35,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 775 transitions, 13689 flow [2024-06-21 18:22:38,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 775 transitions, 13426 flow, removed 48 selfloop flow, removed 7 redundant places. [2024-06-21 18:22:38,339 INFO L231 Difference]: Finished difference. Result has 310 places, 729 transitions, 11939 flow [2024-06-21 18:22:38,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11629, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11939, PETRI_PLACES=310, PETRI_TRANSITIONS=729} [2024-06-21 18:22:38,340 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 266 predicate places. [2024-06-21 18:22:38,341 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 729 transitions, 11939 flow [2024-06-21 18:22:38,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:38,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:38,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:38,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-06-21 18:22:38,341 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:38,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -751647809, now seen corresponding path program 3 times [2024-06-21 18:22:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843371332] [2024-06-21 18:22:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843371332] [2024-06-21 18:22:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843371332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:22:39,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577180738] [2024-06-21 18:22:39,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:39,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:22:39,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:39,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:22:39,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:22:39,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-06-21 18:22:39,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 729 transitions, 11939 flow. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:39,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:39,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-06-21 18:22:39,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:41,642 INFO L124 PetriNetUnfolderBase]: 5452/8741 cut-off events. [2024-06-21 18:22:41,642 INFO L125 PetriNetUnfolderBase]: For 1165215/1165526 co-relation queries the response was YES. [2024-06-21 18:22:41,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82080 conditions, 8741 events. 5452/8741 cut-off events. For 1165215/1165526 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 58109 event pairs, 1385 based on Foata normal form. 31/8618 useless extension candidates. Maximal degree in co-relation 81929. Up to 6529 conditions per place. [2024-06-21 18:22:41,779 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 435 selfloop transitions, 126 changer transitions 0/786 dead transitions. [2024-06-21 18:22:41,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 786 transitions, 13920 flow [2024-06-21 18:22:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:22:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:22:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 229 transitions. [2024-06-21 18:22:41,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325581395348837 [2024-06-21 18:22:41,780 INFO L175 Difference]: Start difference. First operand has 310 places, 729 transitions, 11939 flow. Second operand 10 states and 229 transitions. [2024-06-21 18:22:41,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 786 transitions, 13920 flow [2024-06-21 18:22:44,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 786 transitions, 13640 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-06-21 18:22:44,607 INFO L231 Difference]: Finished difference. Result has 313 places, 739 transitions, 12235 flow [2024-06-21 18:22:44,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=11659, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12235, PETRI_PLACES=313, PETRI_TRANSITIONS=739} [2024-06-21 18:22:44,608 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 269 predicate places. [2024-06-21 18:22:44,608 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 739 transitions, 12235 flow [2024-06-21 18:22:44,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:44,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:44,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:44,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-06-21 18:22:44,608 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:44,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1928359829, now seen corresponding path program 4 times [2024-06-21 18:22:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994758488] [2024-06-21 18:22:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:47,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:47,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994758488] [2024-06-21 18:22:47,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994758488] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:47,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:47,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:22:47,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075253403] [2024-06-21 18:22:47,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:47,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:22:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:22:47,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:22:47,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:22:47,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 739 transitions, 12235 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) [2024-06-21 18:22:47,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:47,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:22:47,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:22:50,892 INFO L124 PetriNetUnfolderBase]: 6302/9698 cut-off events. [2024-06-21 18:22:50,893 INFO L125 PetriNetUnfolderBase]: For 1090154/1090175 co-relation queries the response was YES. [2024-06-21 18:22:50,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88241 conditions, 9698 events. 6302/9698 cut-off events. For 1090154/1090175 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 60587 event pairs, 1743 based on Foata normal form. 12/9634 useless extension candidates. Maximal degree in co-relation 88087. Up to 8657 conditions per place. [2024-06-21 18:22:51,049 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 676 selfloop transitions, 135 changer transitions 0/826 dead transitions. [2024-06-21 18:22:51,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 826 transitions, 15037 flow [2024-06-21 18:22:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-21 18:22:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-21 18:22:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 250 transitions. [2024-06-21 18:22:51,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472271914132379 [2024-06-21 18:22:51,050 INFO L175 Difference]: Start difference. First operand has 313 places, 739 transitions, 12235 flow. Second operand 13 states and 250 transitions. [2024-06-21 18:22:51,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 826 transitions, 15037 flow [2024-06-21 18:22:53,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 826 transitions, 14686 flow, removed 140 selfloop flow, removed 6 redundant places. [2024-06-21 18:22:53,409 INFO L231 Difference]: Finished difference. Result has 323 places, 773 transitions, 12912 flow [2024-06-21 18:22:53,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=12047, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12912, PETRI_PLACES=323, PETRI_TRANSITIONS=773} [2024-06-21 18:22:53,409 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 279 predicate places. [2024-06-21 18:22:53,409 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 773 transitions, 12912 flow [2024-06-21 18:22:53,409 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) [2024-06-21 18:22:53,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:22:53,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:22:53,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-06-21 18:22:53,410 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:22:53,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:22:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1508919439, now seen corresponding path program 5 times [2024-06-21 18:22:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:22:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686427794] [2024-06-21 18:22:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:22:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:22:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:22:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:22:56,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:22:56,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686427794] [2024-06-21 18:22:56,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686427794] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:22:56,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:22:56,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-21 18:22:56,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424090233] [2024-06-21 18:22:56,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:22:56,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-21 18:22:56,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:22:56,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-21 18:22:56,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-06-21 18:22:56,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:22:56,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 773 transitions, 12912 flow. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:22:56,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:22:56,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:22:56,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:00,041 INFO L124 PetriNetUnfolderBase]: 6391/9842 cut-off events. [2024-06-21 18:23:00,041 INFO L125 PetriNetUnfolderBase]: For 1066804/1066825 co-relation queries the response was YES. [2024-06-21 18:23:00,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89540 conditions, 9842 events. 6391/9842 cut-off events. For 1066804/1066825 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 61783 event pairs, 1784 based on Foata normal form. 14/9780 useless extension candidates. Maximal degree in co-relation 89383. Up to 8892 conditions per place. [2024-06-21 18:23:00,174 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 693 selfloop transitions, 136 changer transitions 0/844 dead transitions. [2024-06-21 18:23:00,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 844 transitions, 15248 flow [2024-06-21 18:23:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-21 18:23:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-21 18:23:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 246 transitions. [2024-06-21 18:23:00,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4400715563506261 [2024-06-21 18:23:00,175 INFO L175 Difference]: Start difference. First operand has 323 places, 773 transitions, 12912 flow. Second operand 13 states and 246 transitions. [2024-06-21 18:23:00,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 844 transitions, 15248 flow [2024-06-21 18:23:02,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 844 transitions, 14986 flow, removed 57 selfloop flow, removed 7 redundant places. [2024-06-21 18:23:02,111 INFO L231 Difference]: Finished difference. Result has 329 places, 796 transitions, 13405 flow [2024-06-21 18:23:02,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=12689, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=773, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13405, PETRI_PLACES=329, PETRI_TRANSITIONS=796} [2024-06-21 18:23:02,112 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 285 predicate places. [2024-06-21 18:23:02,112 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 796 transitions, 13405 flow [2024-06-21 18:23:02,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:23:02,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:02,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:02,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-06-21 18:23:02,112 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:02,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -444431763, now seen corresponding path program 6 times [2024-06-21 18:23:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746433791] [2024-06-21 18:23:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:05,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:05,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746433791] [2024-06-21 18:23:05,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746433791] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:05,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:05,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908125851] [2024-06-21 18:23:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:05,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:05,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:05,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:05,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 796 transitions, 13405 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) [2024-06-21 18:23:05,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:05,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:05,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:08,827 INFO L124 PetriNetUnfolderBase]: 6373/9817 cut-off events. [2024-06-21 18:23:08,827 INFO L125 PetriNetUnfolderBase]: For 1070583/1070602 co-relation queries the response was YES. [2024-06-21 18:23:08,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89109 conditions, 9817 events. 6373/9817 cut-off events. For 1070583/1070602 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 61578 event pairs, 1783 based on Foata normal form. 12/9753 useless extension candidates. Maximal degree in co-relation 88950. Up to 8866 conditions per place. [2024-06-21 18:23:08,948 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 685 selfloop transitions, 135 changer transitions 0/835 dead transitions. [2024-06-21 18:23:08,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 835 transitions, 15230 flow [2024-06-21 18:23:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:23:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:23:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2024-06-21 18:23:08,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503171247357294 [2024-06-21 18:23:08,949 INFO L175 Difference]: Start difference. First operand has 329 places, 796 transitions, 13405 flow. Second operand 11 states and 213 transitions. [2024-06-21 18:23:08,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 835 transitions, 15230 flow [2024-06-21 18:23:11,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 835 transitions, 14856 flow, removed 70 selfloop flow, removed 8 redundant places. [2024-06-21 18:23:11,213 INFO L231 Difference]: Finished difference. Result has 332 places, 796 transitions, 13318 flow [2024-06-21 18:23:11,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=13031, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13318, PETRI_PLACES=332, PETRI_TRANSITIONS=796} [2024-06-21 18:23:11,213 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 288 predicate places. [2024-06-21 18:23:11,213 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 796 transitions, 13318 flow [2024-06-21 18:23:11,213 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) [2024-06-21 18:23:11,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:11,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:11,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-06-21 18:23:11,214 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:11,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1785532173, now seen corresponding path program 7 times [2024-06-21 18:23:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:11,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069869799] [2024-06-21 18:23:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:11,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069869799] [2024-06-21 18:23:14,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069869799] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:14,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:14,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:14,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182613973] [2024-06-21 18:23:14,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:14,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:14,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:14,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:14,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:14,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 796 transitions, 13318 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) [2024-06-21 18:23:14,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:14,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:14,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:17,912 INFO L124 PetriNetUnfolderBase]: 6394/9768 cut-off events. [2024-06-21 18:23:17,912 INFO L125 PetriNetUnfolderBase]: For 1095085/1095107 co-relation queries the response was YES. [2024-06-21 18:23:18,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89552 conditions, 9768 events. 6394/9768 cut-off events. For 1095085/1095107 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 60191 event pairs, 1469 based on Foata normal form. 12/9729 useless extension candidates. Maximal degree in co-relation 89392. Up to 8736 conditions per place. [2024-06-21 18:23:18,064 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 693 selfloop transitions, 184 changer transitions 0/892 dead transitions. [2024-06-21 18:23:18,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 892 transitions, 16124 flow [2024-06-21 18:23:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:23:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:23:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2024-06-21 18:23:18,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503171247357294 [2024-06-21 18:23:18,065 INFO L175 Difference]: Start difference. First operand has 332 places, 796 transitions, 13318 flow. Second operand 11 states and 213 transitions. [2024-06-21 18:23:18,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 892 transitions, 16124 flow [2024-06-21 18:23:20,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 892 transitions, 15841 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-06-21 18:23:20,903 INFO L231 Difference]: Finished difference. Result has 337 places, 851 transitions, 14461 flow [2024-06-21 18:23:20,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=13039, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14461, PETRI_PLACES=337, PETRI_TRANSITIONS=851} [2024-06-21 18:23:20,903 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 293 predicate places. [2024-06-21 18:23:20,904 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 851 transitions, 14461 flow [2024-06-21 18:23:20,904 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) [2024-06-21 18:23:20,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:20,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:20,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-06-21 18:23:20,904 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:20,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1404106109, now seen corresponding path program 1 times [2024-06-21 18:23:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:20,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667685021] [2024-06-21 18:23:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:21,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667685021] [2024-06-21 18:23:21,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667685021] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:21,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:21,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-21 18:23:21,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923401915] [2024-06-21 18:23:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:21,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-21 18:23:21,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:21,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-21 18:23:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-21 18:23:21,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:21,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 851 transitions, 14461 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:23:21,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:21,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:21,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:24,647 INFO L124 PetriNetUnfolderBase]: 6873/10437 cut-off events. [2024-06-21 18:23:24,648 INFO L125 PetriNetUnfolderBase]: For 1156076/1156643 co-relation queries the response was YES. [2024-06-21 18:23:24,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94371 conditions, 10437 events. 6873/10437 cut-off events. For 1156076/1156643 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 64047 event pairs, 1974 based on Foata normal form. 233/10505 useless extension candidates. Maximal degree in co-relation 94207. Up to 9296 conditions per place. [2024-06-21 18:23:24,841 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 615 selfloop transitions, 92 changer transitions 0/883 dead transitions. [2024-06-21 18:23:24,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 883 transitions, 16231 flow [2024-06-21 18:23:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-21 18:23:24,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-21 18:23:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2024-06-21 18:23:24,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49169435215946844 [2024-06-21 18:23:24,842 INFO L175 Difference]: Start difference. First operand has 337 places, 851 transitions, 14461 flow. Second operand 7 states and 148 transitions. [2024-06-21 18:23:24,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 883 transitions, 16231 flow [2024-06-21 18:23:27,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 883 transitions, 16094 flow, removed 41 selfloop flow, removed 4 redundant places. [2024-06-21 18:23:27,432 INFO L231 Difference]: Finished difference. Result has 340 places, 857 transitions, 14612 flow [2024-06-21 18:23:27,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=14332, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=14612, PETRI_PLACES=340, PETRI_TRANSITIONS=857} [2024-06-21 18:23:27,433 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 296 predicate places. [2024-06-21 18:23:27,433 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 857 transitions, 14612 flow [2024-06-21 18:23:27,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:23:27,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:27,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:27,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-06-21 18:23:27,434 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:27,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 49472537, now seen corresponding path program 8 times [2024-06-21 18:23:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926895353] [2024-06-21 18:23:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:29,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926895353] [2024-06-21 18:23:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926895353] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:29,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:29,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:29,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526813799] [2024-06-21 18:23:29,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:29,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:29,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:29,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:29,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:30,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:30,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 857 transitions, 14612 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) [2024-06-21 18:23:30,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:30,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:30,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:33,412 INFO L124 PetriNetUnfolderBase]: 6611/10185 cut-off events. [2024-06-21 18:23:33,412 INFO L125 PetriNetUnfolderBase]: For 1178650/1178691 co-relation queries the response was YES. [2024-06-21 18:23:33,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93648 conditions, 10185 events. 6611/10185 cut-off events. For 1178650/1178691 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 64427 event pairs, 1766 based on Foata normal form. 8/10109 useless extension candidates. Maximal degree in co-relation 93483. Up to 9199 conditions per place. [2024-06-21 18:23:33,563 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 819 selfloop transitions, 111 changer transitions 0/947 dead transitions. [2024-06-21 18:23:33,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 947 transitions, 17587 flow [2024-06-21 18:23:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-21 18:23:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-21 18:23:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 234 transitions. [2024-06-21 18:23:33,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-06-21 18:23:33,565 INFO L175 Difference]: Start difference. First operand has 340 places, 857 transitions, 14612 flow. Second operand 12 states and 234 transitions. [2024-06-21 18:23:33,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 947 transitions, 17587 flow [2024-06-21 18:23:36,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 947 transitions, 17472 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-06-21 18:23:36,415 INFO L231 Difference]: Finished difference. Result has 352 places, 894 transitions, 15385 flow [2024-06-21 18:23:36,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=14500, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15385, PETRI_PLACES=352, PETRI_TRANSITIONS=894} [2024-06-21 18:23:36,415 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 308 predicate places. [2024-06-21 18:23:36,415 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 894 transitions, 15385 flow [2024-06-21 18:23:36,416 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) [2024-06-21 18:23:36,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:36,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:36,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-06-21 18:23:36,416 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:36,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 49532987, now seen corresponding path program 9 times [2024-06-21 18:23:36,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:36,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430384389] [2024-06-21 18:23:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:39,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:39,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430384389] [2024-06-21 18:23:39,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430384389] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:39,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:39,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:39,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955611732] [2024-06-21 18:23:39,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:39,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:39,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:39,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:39,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:39,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:39,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 894 transitions, 15385 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) [2024-06-21 18:23:39,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:39,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:39,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:42,655 INFO L124 PetriNetUnfolderBase]: 6694/10318 cut-off events. [2024-06-21 18:23:42,655 INFO L125 PetriNetUnfolderBase]: For 1217413/1217454 co-relation queries the response was YES. [2024-06-21 18:23:42,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96070 conditions, 10318 events. 6694/10318 cut-off events. For 1217413/1217454 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 65501 event pairs, 1811 based on Foata normal form. 10/10245 useless extension candidates. Maximal degree in co-relation 95900. Up to 9457 conditions per place. [2024-06-21 18:23:42,798 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 842 selfloop transitions, 103 changer transitions 0/962 dead transitions. [2024-06-21 18:23:42,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 962 transitions, 18023 flow [2024-06-21 18:23:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-21 18:23:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-21 18:23:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 230 transitions. [2024-06-21 18:23:42,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573643410852715 [2024-06-21 18:23:42,799 INFO L175 Difference]: Start difference. First operand has 352 places, 894 transitions, 15385 flow. Second operand 12 states and 230 transitions. [2024-06-21 18:23:42,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 962 transitions, 18023 flow [2024-06-21 18:23:46,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 962 transitions, 17806 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-06-21 18:23:46,045 INFO L231 Difference]: Finished difference. Result has 358 places, 914 transitions, 15862 flow [2024-06-21 18:23:46,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=15200, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15862, PETRI_PLACES=358, PETRI_TRANSITIONS=914} [2024-06-21 18:23:46,046 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 314 predicate places. [2024-06-21 18:23:46,046 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 914 transitions, 15862 flow [2024-06-21 18:23:46,047 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) [2024-06-21 18:23:46,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:46,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:46,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-06-21 18:23:46,047 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:46,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:46,047 INFO L85 PathProgramCache]: Analyzing trace with hash 52329497, now seen corresponding path program 10 times [2024-06-21 18:23:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:46,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651377714] [2024-06-21 18:23:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:49,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:49,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651377714] [2024-06-21 18:23:49,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651377714] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:49,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:49,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830915076] [2024-06-21 18:23:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:49,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:49,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:49,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 914 transitions, 15862 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) [2024-06-21 18:23:49,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:49,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:49,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:23:52,962 INFO L124 PetriNetUnfolderBase]: 6676/10295 cut-off events. [2024-06-21 18:23:52,963 INFO L125 PetriNetUnfolderBase]: For 1222429/1222470 co-relation queries the response was YES. [2024-06-21 18:23:53,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95744 conditions, 10295 events. 6676/10295 cut-off events. For 1222429/1222470 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 65368 event pairs, 1802 based on Foata normal form. 10/10221 useless extension candidates. Maximal degree in co-relation 95572. Up to 9431 conditions per place. [2024-06-21 18:23:53,110 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 837 selfloop transitions, 101 changer transitions 0/955 dead transitions. [2024-06-21 18:23:53,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 955 transitions, 18013 flow [2024-06-21 18:23:53,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:23:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:23:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 207 transitions. [2024-06-21 18:23:53,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4376321353065539 [2024-06-21 18:23:53,111 INFO L175 Difference]: Start difference. First operand has 358 places, 914 transitions, 15862 flow. Second operand 11 states and 207 transitions. [2024-06-21 18:23:53,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 955 transitions, 18013 flow [2024-06-21 18:23:55,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 955 transitions, 17684 flow, removed 69 selfloop flow, removed 9 redundant places. [2024-06-21 18:23:56,010 INFO L231 Difference]: Finished difference. Result has 360 places, 914 transitions, 15754 flow [2024-06-21 18:23:56,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=15533, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15754, PETRI_PLACES=360, PETRI_TRANSITIONS=914} [2024-06-21 18:23:56,011 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 316 predicate places. [2024-06-21 18:23:56,011 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 914 transitions, 15754 flow [2024-06-21 18:23:56,011 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) [2024-06-21 18:23:56,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:23:56,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:23:56,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-06-21 18:23:56,011 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:23:56,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:23:56,011 INFO L85 PathProgramCache]: Analyzing trace with hash 167620667, now seen corresponding path program 11 times [2024-06-21 18:23:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:23:56,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427777837] [2024-06-21 18:23:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:23:56,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:23:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:23:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:23:59,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:23:59,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427777837] [2024-06-21 18:23:59,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427777837] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:23:59,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:23:59,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:23:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977167077] [2024-06-21 18:23:59,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:23:59,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:23:59,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:23:59,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:23:59,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:23:59,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:23:59,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 914 transitions, 15754 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) [2024-06-21 18:23:59,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:23:59,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:23:59,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:02,685 INFO L124 PetriNetUnfolderBase]: 6703/10341 cut-off events. [2024-06-21 18:24:02,686 INFO L125 PetriNetUnfolderBase]: For 1245654/1245700 co-relation queries the response was YES. [2024-06-21 18:24:02,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96197 conditions, 10341 events. 6703/10341 cut-off events. For 1245654/1245700 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 65834 event pairs, 1743 based on Foata normal form. 8/10259 useless extension candidates. Maximal degree in co-relation 96023. Up to 9301 conditions per place. [2024-06-21 18:24:02,829 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 776 selfloop transitions, 176 changer transitions 0/969 dead transitions. [2024-06-21 18:24:02,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 969 transitions, 18153 flow [2024-06-21 18:24:02,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-21 18:24:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-21 18:24:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 212 transitions. [2024-06-21 18:24:02,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44820295983086683 [2024-06-21 18:24:02,830 INFO L175 Difference]: Start difference. First operand has 360 places, 914 transitions, 15754 flow. Second operand 11 states and 212 transitions. [2024-06-21 18:24:02,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 969 transitions, 18153 flow [2024-06-21 18:24:05,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 969 transitions, 17944 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-06-21 18:24:05,503 INFO L231 Difference]: Finished difference. Result has 363 places, 921 transitions, 16034 flow [2024-06-21 18:24:05,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=15545, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=738, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16034, PETRI_PLACES=363, PETRI_TRANSITIONS=921} [2024-06-21 18:24:05,504 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 319 predicate places. [2024-06-21 18:24:05,504 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 921 transitions, 16034 flow [2024-06-21 18:24:05,504 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) [2024-06-21 18:24:05,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:05,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:05,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-06-21 18:24:05,504 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:05,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:05,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1537370775, now seen corresponding path program 1 times [2024-06-21 18:24:05,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:05,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417795226] [2024-06-21 18:24:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:05,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:07,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:07,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417795226] [2024-06-21 18:24:07,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417795226] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:07,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:07,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:24:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28976787] [2024-06-21 18:24:07,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:07,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:24:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:07,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:24:07,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:24:07,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:24:07,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 921 transitions, 16034 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) [2024-06-21 18:24:07,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:07,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:24:07,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:11,111 INFO L124 PetriNetUnfolderBase]: 7892/11797 cut-off events. [2024-06-21 18:24:11,111 INFO L125 PetriNetUnfolderBase]: For 1305040/1305082 co-relation queries the response was YES. [2024-06-21 18:24:11,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107286 conditions, 11797 events. 7892/11797 cut-off events. For 1305040/1305082 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 70862 event pairs, 2094 based on Foata normal form. 4/11759 useless extension candidates. Maximal degree in co-relation 107110. Up to 11113 conditions per place. [2024-06-21 18:24:11,332 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 853 selfloop transitions, 112 changer transitions 0/978 dead transitions. [2024-06-21 18:24:11,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 978 transitions, 18586 flow [2024-06-21 18:24:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:24:11,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:24:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2024-06-21 18:24:11,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4418604651162791 [2024-06-21 18:24:11,336 INFO L175 Difference]: Start difference. First operand has 363 places, 921 transitions, 16034 flow. Second operand 10 states and 190 transitions. [2024-06-21 18:24:11,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 978 transitions, 18586 flow [2024-06-21 18:24:14,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 978 transitions, 18195 flow, removed 34 selfloop flow, removed 7 redundant places. [2024-06-21 18:24:14,842 INFO L231 Difference]: Finished difference. Result has 366 places, 942 transitions, 16336 flow [2024-06-21 18:24:14,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=15643, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16336, PETRI_PLACES=366, PETRI_TRANSITIONS=942} [2024-06-21 18:24:14,843 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 322 predicate places. [2024-06-21 18:24:14,843 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 942 transitions, 16336 flow [2024-06-21 18:24:14,843 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) [2024-06-21 18:24:14,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:14,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:14,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-06-21 18:24:14,843 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:14,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 339939929, now seen corresponding path program 1 times [2024-06-21 18:24:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:14,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829497198] [2024-06-21 18:24:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:14,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:16,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829497198] [2024-06-21 18:24:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829497198] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:16,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:16,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:24:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646780821] [2024-06-21 18:24:16,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:16,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:24:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:16,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:24:16,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:24:16,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:24:16,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 942 transitions, 16336 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) [2024-06-21 18:24:16,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:16,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:24:16,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:20,184 INFO L124 PetriNetUnfolderBase]: 7914/11828 cut-off events. [2024-06-21 18:24:20,184 INFO L125 PetriNetUnfolderBase]: For 1345056/1345102 co-relation queries the response was YES. [2024-06-21 18:24:20,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108223 conditions, 11828 events. 7914/11828 cut-off events. For 1345056/1345102 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 71134 event pairs, 2072 based on Foata normal form. 6/11787 useless extension candidates. Maximal degree in co-relation 108046. Up to 11175 conditions per place. [2024-06-21 18:24:20,854 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 873 selfloop transitions, 93 changer transitions 0/979 dead transitions. [2024-06-21 18:24:20,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 979 transitions, 18544 flow [2024-06-21 18:24:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:24:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:24:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-06-21 18:24:20,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43953488372093025 [2024-06-21 18:24:20,856 INFO L175 Difference]: Start difference. First operand has 366 places, 942 transitions, 16336 flow. Second operand 10 states and 189 transitions. [2024-06-21 18:24:20,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 979 transitions, 18544 flow [2024-06-21 18:24:24,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 979 transitions, 18293 flow, removed 26 selfloop flow, removed 8 redundant places. [2024-06-21 18:24:24,785 INFO L231 Difference]: Finished difference. Result has 368 places, 944 transitions, 16349 flow [2024-06-21 18:24:24,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=16085, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16349, PETRI_PLACES=368, PETRI_TRANSITIONS=944} [2024-06-21 18:24:24,786 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 324 predicate places. [2024-06-21 18:24:24,786 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 944 transitions, 16349 flow [2024-06-21 18:24:24,786 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) [2024-06-21 18:24:24,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:24,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:24,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-06-21 18:24:24,786 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:24,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:24,787 INFO L85 PathProgramCache]: Analyzing trace with hash 333259801, now seen corresponding path program 12 times [2024-06-21 18:24:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372348017] [2024-06-21 18:24:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:27,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:27,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372348017] [2024-06-21 18:24:27,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372348017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:27,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:27,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:24:27,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658411898] [2024-06-21 18:24:27,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:27,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:24:27,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:27,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:24:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:24:27,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:24:27,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 944 transitions, 16349 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) [2024-06-21 18:24:27,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:27,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:24:27,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:31,617 INFO L124 PetriNetUnfolderBase]: 7927/11847 cut-off events. [2024-06-21 18:24:31,617 INFO L125 PetriNetUnfolderBase]: For 1373484/1373530 co-relation queries the response was YES. [2024-06-21 18:24:31,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108856 conditions, 11847 events. 7927/11847 cut-off events. For 1373484/1373530 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 71212 event pairs, 2158 based on Foata normal form. 8/11814 useless extension candidates. Maximal degree in co-relation 108678. Up to 11349 conditions per place. [2024-06-21 18:24:31,828 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 907 selfloop transitions, 66 changer transitions 0/986 dead transitions. [2024-06-21 18:24:31,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 986 transitions, 18615 flow [2024-06-21 18:24:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-21 18:24:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-21 18:24:31,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2024-06-21 18:24:31,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43488372093023253 [2024-06-21 18:24:31,829 INFO L175 Difference]: Start difference. First operand has 368 places, 944 transitions, 16349 flow. Second operand 10 states and 187 transitions. [2024-06-21 18:24:31,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 986 transitions, 18615 flow [2024-06-21 18:24:35,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 986 transitions, 18382 flow, removed 31 selfloop flow, removed 7 redundant places. [2024-06-21 18:24:35,525 INFO L231 Difference]: Finished difference. Result has 372 places, 949 transitions, 16382 flow [2024-06-21 18:24:35,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=16116, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16382, PETRI_PLACES=372, PETRI_TRANSITIONS=949} [2024-06-21 18:24:35,525 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 328 predicate places. [2024-06-21 18:24:35,525 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 949 transitions, 16382 flow [2024-06-21 18:24:35,526 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) [2024-06-21 18:24:35,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:35,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:35,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-06-21 18:24:35,526 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:35,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1151883101, now seen corresponding path program 2 times [2024-06-21 18:24:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:35,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037021684] [2024-06-21 18:24:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:37,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037021684] [2024-06-21 18:24:37,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037021684] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:37,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:37,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:24:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353123438] [2024-06-21 18:24:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:37,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:24:37,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:24:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:24:37,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-06-21 18:24:37,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 949 transitions, 16382 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) [2024-06-21 18:24:37,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:37,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-06-21 18:24:37,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:41,556 INFO L124 PetriNetUnfolderBase]: 7909/11820 cut-off events. [2024-06-21 18:24:41,557 INFO L125 PetriNetUnfolderBase]: For 1394249/1394295 co-relation queries the response was YES. [2024-06-21 18:24:41,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108782 conditions, 11820 events. 7909/11820 cut-off events. For 1394249/1394295 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 71018 event pairs, 2047 based on Foata normal form. 5/11783 useless extension candidates. Maximal degree in co-relation 108603. Up to 11014 conditions per place. [2024-06-21 18:24:41,735 INFO L140 encePairwiseOnDemand]: 29/43 looper letters, 826 selfloop transitions, 154 changer transitions 0/993 dead transitions. [2024-06-21 18:24:41,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 993 transitions, 18698 flow [2024-06-21 18:24:41,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-21 18:24:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-21 18:24:41,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2024-06-21 18:24:41,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806201550387597 [2024-06-21 18:24:41,736 INFO L175 Difference]: Start difference. First operand has 372 places, 949 transitions, 16382 flow. Second operand 9 states and 186 transitions. [2024-06-21 18:24:41,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 993 transitions, 18698 flow [2024-06-21 18:24:45,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 993 transitions, 18453 flow, removed 62 selfloop flow, removed 7 redundant places. [2024-06-21 18:24:45,444 INFO L231 Difference]: Finished difference. Result has 375 places, 956 transitions, 16603 flow [2024-06-21 18:24:45,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=16137, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=801, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16603, PETRI_PLACES=375, PETRI_TRANSITIONS=956} [2024-06-21 18:24:45,445 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 331 predicate places. [2024-06-21 18:24:45,445 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 956 transitions, 16603 flow [2024-06-21 18:24:45,445 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) [2024-06-21 18:24:45,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:45,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:45,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-06-21 18:24:45,445 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:45,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1023613193, now seen corresponding path program 1 times [2024-06-21 18:24:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:45,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957403459] [2024-06-21 18:24:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:47,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:47,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957403459] [2024-06-21 18:24:47,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957403459] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:47,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-21 18:24:47,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396042710] [2024-06-21 18:24:47,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:47,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-21 18:24:47,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-21 18:24:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-21 18:24:47,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:24:47,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 956 transitions, 16603 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) [2024-06-21 18:24:47,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:47,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:24:47,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-21 18:24:51,504 INFO L124 PetriNetUnfolderBase]: 7319/11146 cut-off events. [2024-06-21 18:24:51,505 INFO L125 PetriNetUnfolderBase]: For 1477955/1478444 co-relation queries the response was YES. [2024-06-21 18:24:51,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104381 conditions, 11146 events. 7319/11146 cut-off events. For 1477955/1478444 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 69676 event pairs, 2128 based on Foata normal form. 176/11167 useless extension candidates. Maximal degree in co-relation 104200. Up to 9916 conditions per place. [2024-06-21 18:24:51,672 INFO L140 encePairwiseOnDemand]: 31/43 looper letters, 723 selfloop transitions, 83 changer transitions 0/1015 dead transitions. [2024-06-21 18:24:51,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 1015 transitions, 19353 flow [2024-06-21 18:24:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-21 18:24:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-21 18:24:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2024-06-21 18:24:51,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4941860465116279 [2024-06-21 18:24:51,673 INFO L175 Difference]: Start difference. First operand has 375 places, 956 transitions, 16603 flow. Second operand 8 states and 170 transitions. [2024-06-21 18:24:51,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 1015 transitions, 19353 flow [2024-06-21 18:24:54,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 1015 transitions, 18961 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-21 18:24:54,776 INFO L231 Difference]: Finished difference. Result has 377 places, 982 transitions, 16706 flow [2024-06-21 18:24:54,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=16211, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=886, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16706, PETRI_PLACES=377, PETRI_TRANSITIONS=982} [2024-06-21 18:24:54,777 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 333 predicate places. [2024-06-21 18:24:54,777 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 982 transitions, 16706 flow [2024-06-21 18:24:54,777 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) [2024-06-21 18:24:54,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-21 18:24:54,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-21 18:24:54,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-06-21 18:24:54,777 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-21 18:24:54,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-21 18:24:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1955544702, now seen corresponding path program 1 times [2024-06-21 18:24:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-21 18:24:54,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085294755] [2024-06-21 18:24:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-21 18:24:54,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-21 18:24:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-21 18:24:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-21 18:24:56,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-21 18:24:56,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085294755] [2024-06-21 18:24:56,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085294755] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-21 18:24:56,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-21 18:24:56,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-21 18:24:56,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47976814] [2024-06-21 18:24:56,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-21 18:24:56,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-21 18:24:56,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-21 18:24:56,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-21 18:24:56,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-06-21 18:24:56,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-06-21 18:24:56,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 982 transitions, 16706 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-21 18:24:56,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-21 18:24:56,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-06-21 18:24:56,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand